More than 50 indigenous and Afro-descendant representatives of the Black and Indigenous Liberation Movement (BILM) call on the States of the Americas to address climate change from a differentiated, non-discriminatory justice perspective that addresses historical reparations for the impacts of colonialism. (more…)
Editor’s Note: The following article compares civilization to a cult, by questioning some of the basic assumptions of civilization. Civilization, particularly industrial civilization, is fundamentally unsustainable. The solutions proposed to make it more sustainable, i.e. technological advancements, miss the root cause of the problem, i.e. overconsumption by a species to the detriment of all life forms on Earth. (more…)
Editor’s Note: DGR does not support solar and wind “alternatives”. They are not alternatives to the energy and ecological crisis, but rather a part of it.. They do not “replace” natural gas and fossil fuels, not only because the so called renewable energy are not as potent an energy source as fossil fuel, but also because they rely on fossil fuel for basic operation. They contribute to the abuse, exploitation and plunder of nature. There are mountains of resources to support this. More dangerously, they lead us to false solutions, putting our much needed revolutionary energies into projects which only contribute to the problem. We are firmly opposed to these technologies.
The value of this article lies in exposing how these “green” technologies are being introduced in reality. Despite the bright green lies in this article, it is important to gain understanding on how these technologies are wrecking havoc across the globe. The beauty of nature is defended strongly in this article. The “violent mechanization of [the] daily view of the natural world” is acknowledged to be a deep concern, indeed it is “extremely disturbing”. In the spirit of solidarity and internationalism, we call for coalitions to ask important questions on these “green” and “alternative” technologies, and to continue the ecological resistance to protect the wild.
My Greek friends in the large island of Euboea and Boeotia (Central Greece) are telling me — and the world — that a “hurricane” of solar and wind technologies are wrecking their lives and the countryside.
I am all for solar and wind alternatives to the Earth-warming fossil fuels. The faster they replace dangerous petroleum, natural gas, and coal, the better. The world is in real danger from anthropogenic climate chaos. Climate nemesis is hanging over the planet like the sword of Damokles.
Nevertheless, Greece has been abusing solar and wind energy. Instead of placing solar panels on the roofs of houses and buildings, the local Greek municipal governments and the Ministry of the Environment are licensing private companies to install solar panel arrays on archaeological sites, wetlands, valleys, and mountains.
The situation with wind turbines, some of which are gigantic and 200 meters tall, is worse. Private companies flatten mountain tops, clear cut forests, dig up valleys and mountain sides for the construction of large cement foundations for their monster wind turbines. They act like the ruthless coal companies in Kentucky and West Virginia.
Euboea
In Central Euboea, there’s an exquisite wetland named Kolobrextis. This wetland supports a number of threatened and endangered species. It is close to an archaeological site. And yet both the archaeological service and the Ministry of the Environment permitted the installation of numerous solar panels in the region of Kolobrextis. Local citizens appealed these illegal decisions, but without success.
They said:
“We consider the wetland our natural inheritance, which cannot be sacrificed on the altar of the interests and profits of a corrupt and unethical market.”
On July 17, 2022, Evi Sarantea, an artist and environmentalist from Euboea, sent the following letter to her friends:
“[Government authorities licensing windfarms] intend to destroy the last dense fir forest left in Central Evia [Euboea]… They already destroyed Southern Evia. They authorized the placement of more than 800 wind turbines in an extensive archaeological site. Some of those wind turbines were about 185 meters tall. And this happened after Northern Evia was incinerated last year. Don’t let this HUBRIS win. ALL the Municipalities and 150 agencies of the island [of Euboea] are 100 percent opposed to the installation of these monsters – with a life span of only 20 years. They will irreversibly and tragically destroy the ecosystem and the formation of the soil which is several tens of millions of years old.”
Boeotia
Boeotia is a prosperous region with rich mythology and history. Its poleis (city-states) Orchomenos and Thebes date from the Bronze Age. Thebes gave Greece god Dionysos and the superhero Herakles and the great lyric poet Pindar.
In July 2022, however, citizens in Central Greece spoke about widespread vandalism and ecological and cultural destruction of mountains sacred in Bronze Age Greece and classical times: Parnassos, Helicon, Cithaeron, and Parnetha.
Hesiod, born in Ascra, a village of Boeotia and second poet only to Homer, was inspired to write his epics on the birth of the gods and rural life by the Muses, goddesses of learning. The inspiration took place on Mt. Helicon.
Sowing wind turbines
And now, in 2022, more than three thousand years after Hesiod, the Greek government serving its debt masters in the European Union and the United States, especially Germany, is blowing up sacred nature in order to dig the giant wind towers from Germany very deeply into fertile land and mountains.
This fast-paced degrading of archaeological sites, and destruction of the natural world in Greece (mountains, forests, wetlands, and land) is socking the Greek people. They don’t know or suspect the reasons behind the vandalism. The government is promising cheap energy prices for their cooperation. But the prices of energy keep increasing.
The citizens are accusing their government of corruption. It allows profiteers and an immoral and unchecked market to undermine and destroy the natural world. This new ugly mechanical and shining solar icons will be throwing people in doubt about climate change and the means of fighting it. They will remember petroleum and coal with nostalgia and pleasure. In essence, this unchecked and nature-deforming energy development will be giving a bad name to solar and wind energy.
The citizens of Boeotia mentioned “the permitting of 38 large wind and solar parks consisting of hundreds of wind turbines and thousands of solar panels.”
Spoiling beauty – and much more
This prospect of the violent mechanization of their daily view of the natural world is extremely disturbing. The citizens of Boeotia complain that,
“Probably all the mountains and forests of Boeotia are slated for attacks from the energy industry. This would transform the natural world beyond recognition. Beekeeping would be abandoned; cattle raising outside of animal farms would also come to an end; cultivating the land for food, tourism, and relaxation in the countryside will be undermined, and eventually abandoned. Trees, bushes, wild animals, and birds are in immediate danger. Wind turbines on the top of mountains will decimate eagles, falcons, and other birds of prey, already under stress of extinction.”
This unnecessary tragedy adds considerably to the unhappiness and debt misery of the Greeks. They are bound to see the finger of Germany behind this onslaught on their few surviving pleasures: walking to the woods in the mountains and forests and valleys; seeing the rare birds of wetlands; and paying their respects to the quiet and beauty spread above the ruins in archaeological sites.
Stop this madness
My advice to the Prime Minister Kyriakos Mitsotakis would be to break with the humiliations of the debt. Stop paying the illegal and odious debt. Return to the drachma. And reindustrialize your country. Stop using the German wind behemoths. Build your own wind-electricity generating machines to fit the country’s ecological and climate needs. Indeed, design and build all technologies at home.
Greece used to worship the Sun god Helios and Aiolos, the god of the winds. Yes, Greece needs to stop using fossil fuels, but it also needs to use solar panels only on the rooftops of houses and buildings. And should there be a need for windfarms, always plan and act in the context of ecology, biodiversity, and culture. If the windfarms cannot be used without harm, forget about them. Don’t use them in Greece.
Editor’s Note: Global warming is a serious threat to our planet, and, along with mass extinction, wildlife population collapse, habitat destruction, desertification, aquifer drawdown, oceanic dead zones, pollution, and other ecological issues, is one of the primary symptoms of overshoot and industrial civilization.
This paper, published last month in the Proceedings of the National Academy of Sciences, explores the prospect of catastrophic global warming, noting that “There is ample evidence that climate change could become catastrophic… at even modest levels of warming.”
With outcomes such as runaway global warming, oceanic hypoxia, and mass mortality becoming more certain with each passing day, the justifications for Deep Green Resistance are only becoming stronger.
By Luke Kemp, Chi Xu, Joanna Depledge, Kristie L. Ebi, Goodwin Gibbins, Timothy A. Kohler, JohanRockström, Marten Scheffer, Hans Joachim Schellnhuber, Will Steffen, and Timothy M. Lenton. Edited by Kerry Emanuel, Massachusetts Institute of Technology, Cambridge, MA; received May 20, 2021; accepted March 25, 2022
Proceedings of the National Academy of Sciences (USA). 2022 Aug 23;119(34):e2108146119.
doi: 10.1073/pnas.2108146119.
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Prudent risk management requires consideration of bad-to-worst-case scenarios. Yet, for climate change, such potential futures are poorly understood. Could anthropogenic climate change result in worldwide societal collapse or even eventual human extinction? At present, this is a dangerously underexplored topic. Yet there are ample reasons to suspect that climate change could result in a global catastrophe. Analyzing the mechanisms for these extreme consequences could help galvanize action, improve resilience, and inform policy, including emergency responses. We outline current knowledge about the likelihood of extreme climate change, discuss why understanding bad-to-worst cases is vital, articulate reasons for concern about catastrophic outcomes, define key terms, and put forward a research agenda. The proposed agenda covers four main questions: 1) What is the potential for climate change to drive mass extinction events? 2) What are the mechanisms that could result in human mass mortality and morbidity? 3) What are human societies’ vulnerabilities to climate-triggered risk cascades, such as from conflict, political instability, and systemic financial risk? 4) How can these multiple strands of evidence—together with other global dangers—be usefully synthesized into an “integrated catastrophe assessment”? It is time for the scientific community to grapple with the challenge of better understanding catastrophic climate change.
How bad could climate change get? As early as 1988, the landmark Toronto Conference declaration described the ultimate consequences of climate change as potentially “second only to a global nuclear war.” Despite such proclamations decades ago, climate catastrophe is relatively under-studied and poorly understood.
The potential for catastrophic impacts depends on the magnitude and rate of climate change, the damage inflicted on Earth and human systems, and the vulnerability and response of those affected systems. The extremes of these areas, such as high temperature rise and cascading impacts, are underexamined. As noted by the Intergovernmental Panel on Climate Change (IPCC), there have been few quantitative estimates of global aggregate impacts from warming of 3 °C or above (1). Text mining of IPCC reports similarly found that coverage of temperature rises of 3 °C or higher is underrepresented relative to their likelihood (2). Text-mining analysis also suggests that over time the coverage of IPCC reports has shifted towards temperature rise of 2 °C and below https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022EF002876. Research has focused on the impacts of 1.5 °C and 2 °C, and studies of how climate impacts could cascade or trigger larger crises are sparse.
A thorough risk assessment would need to consider how risks spread, interact, amplify, and are aggravated by human responses (3), but even simpler “compound hazard” analyses of interacting climate hazards and drivers are underused. Yet this is how risk unfolds in the real world. For example, a cyclone destroys electrical infrastructure, leaving a population vulnerable to an ensuing deadly heat wave (4). Recently, we have seen compound hazards emerge between climate change and the COVID-19 pandemic (5). As the IPCC notes, climate risks are becoming more complex and difficult to manage, and are cascading across regions and sectors (6).
Why the focus on lower-end warming and simple risk analyses? One reason is the benchmark of the international targets: the Paris Agreement goal of limiting warming to well below 2 °C, with an aspiration of 1.5 °C. Another reason is the culture of climate science to “err on the side of least drama” (7), to not to be alarmists, which can be compounded by the consensus processes of the IPCC (8). Complex risk assessments, while more realistic, are also more difficult to do.
This caution is understandable, yet it is mismatched to the risks and potential damages posed by climate change. We know that temperature rise has “fat tails”: low-probability, high-impact extreme outcomes (9). Climate damages are likely to be nonlinear and result in an even larger tail (10). Too much is at stake to refrain from examining high-impact low-likelihood scenarios. The COVID-19 pandemic has underlined the need to consider and prepare for infrequent, high-impact global risks, and the systemic dangers they can spark. Prudent risk management demands that we thoroughly assess worst-case scenarios.
Our proposed “Climate Endgame” research agenda aims to direct exploration of the worst risks associated with anthropogenic climate change. To introduce it, we summarize existing evidence on the likelihood of extreme climate change, outline why exploring bad-to-worst cases is vital, suggest reasons for catastrophic concern, define key terms, and then explain the four key aspects of the research agenda.
Despite 30 y of efforts and some progress under the United Nations Framework Convention on Climate Change (UNFCCC) anthropogenic greenhouse gas (GHG) emissions continue to increase. Even without considering worst-case climate responses, the current trajectory puts the world on track for a temperature rise between 2.1 °C and 3.9 °C by 2100 (11). If all 2030 nationally determined contributions are fully implemented, warming of 2.4 °C (1.9 °C to 3.0 °C) is expected by 2100. Meeting all long-term pledges and targets could reduce this to 2.1 °C (1.7 °C to 2.6 °C) (12). Even these optimistic assumptions lead to dangerous Earth system trajectories. Temperatures of more than 2 °C above preindustrial values have not been sustained on Earth’s surface since before the Pleistocene Epoch (or more than 2.6 million years ago) (13).
Even if anthropogenic GHG emissions start to decline soon, this does not rule out high future GHG concentrations or extreme climate change, particularly beyond 2100. There are feedbacks in the carbon cycle and potential tipping points that could generate high GHG concentrations (14) that are often missing from models. Examples include Arctic permafrost thawing that releases methane and CO2 (15), carbon loss due to intense droughts and fires in the Amazon (16), and the apparent slowing of dampening feedbacks such as natural carbon sink capacity (17, 18). These are likely to not be proportional to warming, as is sometimes assumed. Instead, abrupt and/or irreversible changes may be triggered at a temperature threshold. Such changes are evident in Earth’s geological record, and their impacts cascaded across the coupled climate–ecological–social system (19). Particularly worrying is a “tipping cascade” in which multiple tipping elements interact in such a way that tipping one threshold increases the likelihood of tipping another (20). Temperature rise is crucially dependent on the overall dynamics of the Earth system, not just the anthropogenic emissions trajectory.
The potential for tipping points and higher concentrations despite lower anthropogenic emissions is evident in existing models. Variability among the latest Coupled Model Intercomparison Project Phase 6 (CMIP6) climate models results in overlap in different scenarios. For example, the top (75th) quartile outcome of the “middle-of-the-road” scenario (Shared Socioeconomic Pathway 3-7.0, or SSP3-7.0) is substantially hotter than the bottom (25th) quartile of the highest emissions (SSP5-8.5) scenario. Regional temperature differences between models can exceed 5 °C to 6 °C, particularly in polar areas where various tipping points can occur (https://www.pnas.org/doi/10.1073/pnas.2108146119#supplementary-materials).
There are even more uncertain feedbacks, which, in a very worst case, might amplify to an irreversible transition into a “Hothouse Earth” state (21) (although there may be negative feedbacks that help buffer the Earth system). In particular, poorly understood cloud feedbacks might trigger sudden and irreversible global warming (22). Such effects remain underexplored and largely speculative “unknown unknowns” that are still being discovered. For instance, recent simulations suggest that stratocumulus cloud decks might abruptly be lost at CO2 concentrations that could be approached by the end of the century, causing an additional ∼8 °C global warming (23). Large uncertainties about dangerous surprises are reasons to prioritize rather than neglect them.
Recent findings on equilibrium climate sensitivity (ECS) (14, 24) underline that the magnitude of climate change is uncertain even if we knew future GHG concentrations. According to the IPCC, our best estimate for ECS is a 3 °C temperature rise per doubling of CO2, with a “likely” range of (66 to 100% likelihood) of 2.5 °C to 4 °C. While an ECS below 1.5 °C was essentially ruled out, there remains an 18% probability that ECS could be greater than 4.5 °C (14). The distribution of ECS is “heavy tailed,” with a higher probability of very high values of ECS than of very low values.
There is significant uncertainty over future anthropogenic GHG emissions as well. Representative Concentration Pathway 8.5 (RCP8.5, now SSP5-8.5), the highest emissions pathway used in IPCC scenarios, most closely matches cumulative emissions to date (25). This may not be the case going forward, because of falling prices of renewable energy and policy responses (26). Yet, there remain reasons for caution. For instance, there is significant uncertainty over key variables such as energy demand and economic growth. Plausibly higher economic growth rates could make RCP8.5 35% more likely (27).
Why do we need to know about the plausible worst cases? First, risk management and robust decision-making under uncertainty requires knowledge of extremes. For example, the minimax criterion ranks policies by their worst outcomes (28). Such an approach is particularly appropriate for areas characterized by high uncertainties and tail risks. Emissions trajectories, future concentrations, future warming, and future impacts are all characterized by uncertainty. That is, we can’t objectively prescribe probabilities to different outcomes (29). Climate damages lie within the realm of “deep uncertainty”: We don’t know the probabilities attached to different outcomes, the exact chain of cause and effect that will lead to outcomes, or even the range, timing, or desirability of outcomes (, 30). Uncertainty, deep or not, should motivate precaution and vigilance, not complacency.
Catastrophic impacts, even if unlikely, have major implications for economic analysis, modeling, and society’s responses (31, 32). For example, extreme warming and the consequent damages can significantly increase the projected social cost of carbon (31). Understanding the vulnerability and responses of human societies can inform policy making and decision-making to prevent systemic crises. Indicators of key variables can provide early warning signals (33).
Knowing the worst cases can compel action, as the idea of “nuclear winter” in 1983 galvanized public concern and nuclear disarmament efforts. Exploring severe risks and higher-temperature scenarios could cement a recommitment to the 1.5 °C to 2 °C guardrail as the “least unattractive” option (34).
Understanding catastrophic climate scenarios can also inform policy interventions, including last-resort emergency measures like solar radiation management (SRM), the injection of aerosols into the stratosphere to reflect sunlight (35).
Whether to resort to such measures depends on the risk profiles of both climate change and SRM scenarios. One recent analysis of the potential catastrophic risk of stratospheric aerosol injection (SAI) found that the direct and systemic impacts are under-studied (36). The largest danger appears to come from “termination shock”: abrupt and rapid warming if the SAI system is disrupted. Hence, SAI shifts the risk distribution: The median outcome may be better than the climate change it is offsetting, but the tail risk could be worse than warming (36).
There are other interventions that a better understanding of catastrophic climate change could facilitate. For example, at the international level, there is the potential for a “tail risk treaty”: an agreement or protocol that activates stronger commitments and mechanisms when early-warning indicators of potential abrupt change are triggered.
There are four key reasons to be concerned over the potential of a global climate catastrophe. First, there are warnings from history. Climate change (either regional or global) has played a role in the collapse or transformation of numerous previous societies (37) and in each of the five mass extinction events in Phanerozoic Earth history (38). The current carbon pulse is occurring at an unprecedented geological speed and, by the end of the century, may surpass thresholds that triggered previous mass extinctions (39, 40). The worst-case scenarios in the IPCC report project temperatures by the 22nd century that last prevailed in the Early Eocene, reversing 50 million years of cooler climates in the space of two centuries (41).
This is particularly alarming, as human societies are locally adapted to a specific climatic niche. The rise of large-scale, urbanized agrarian societies [editors note: civilization] began with the shift to the stable climate of the Holocene ∼12,000 y ago (42). Since then, human population density peaked within a narrow climatic envelope with a mean annual average temperature of ∼13 °C. Even today, the most economically productive centers of human activity are concentrated in those areas (43). The cumulative impacts of warming may overwhelm societal adaptive capacity.
Second, climate change could directly trigger other catastrophic risks, such as international conflict, or exacerbate infectious disease spread, and spillover risk. These could be potent extreme threat multipliers.
Third, climate change could exacerbate vulnerabilities and cause multiple, indirect stresses (such as economic damage, loss of land, and water and food insecurity) that coalesce into system-wide synchronous failures. This is the path of systemic risk. Global crises tend to occur through such reinforcing “synchronous failures” that spread across countries and systems, as with the 2007–2008 global financial crisis (44). It is plausible that a sudden shift in climate could trigger systems failures that unravel societies across the globe.
The potential of systemic climate risk is marked: The most vulnerable states and communities will continue to be the hardest hit in a warming world, exacerbating inequities. Fig. 1 shows how projected population density intersects with extreme >29 °C mean annual temperature (MAT) (such temperatures are currently restricted to only 0.8% of Earth’s land surface area). Using the medium-high scenario of emissions and population growth (SSP3-7.0 emissions, and SSP3 population growth), by 2070, around 2 billion people are expected to live in these extremely hot areas. Currently, only 30 million people live in hot places, primarily in the Sahara Desert and Gulf Coast (43).
Fig. 1.
Extreme temperatures combined with high humidity can negatively affect outdoor worker productivity and yields of major cereal crops. These deadly heat conditions could significantly affect populated areas in South and southwest Asia (47).
Fig. 2 takes a political lens on extreme heat, overlapping SSP3-7.0 or SSP5-8.5 projections of >29 °C MAT circa 2070, with the Fragile States Index (a measurement of the instability of states). There is a striking overlap between currently vulnerable states and future areas of extreme warming. If current political fragility does not improve significantly in the coming decades, then a belt of instability with potentially serious ramifications could occur.
Fig. 2.
Finally, climate change could irrevocably undermine humanity’s ability to recover from another cataclysm, such as nuclear war. That is, it could create significant latent risks (Table 1): Impacts that may be manageable during times of stability become dire when responding to and recovering from catastrophe. These different causes for catastrophic concern are interrelated and must be examined together.
Table 1. Defining key terms in the Climate Endgame agenda
| Term | Definition |
|---|---|
| Latent risk | Risk that is dormant under one set of conditions but becomes active under another set of conditions. |
| Risk cascade | Chains of risk occurring when an adverse impact triggers a set of linked risks (3). |
| Systemic risk | The potential for individual disruptions or failures to cascade into a system-wide failure. |
| Extreme climate change | Mean global surface temperature rise of 3 °C or more above preindustrial levels by 2100. |
| Extinction risk | The probability of human extinction within a given timeframe. |
| Extinction threat | A plausible and significant contributor to total extinction risk. |
| Societal fragility | The potential for smaller damages to spiral into global catastrophic or extinction risk due to societal vulnerabilities, risk cascades, and maladaptive responses. |
| Societal collapse | Significant sociopolitical fragmentation and/or state failure along with the relatively rapid, enduring, and significant loss capital, and systems identity; this can lead to large-scale increases in mortality and morbidity. |
| Global catastrophic risk | The probability of a loss of 25% of the global population and the severe disruption of global critical systems (such as food) within a given timeframe (years or decades). |
| Global catastrophic threat | A plausible and significant contributor to global catastrophic risk; the potential for climate change to be a global catastrophic threat can be referred to as “catastrophic climate change”. |
| Global decimation risk | The probability of a loss of 10% (or more) of global population and the severe disruption of global critical systems (such as food) within a given timeframe (years or decades). |
| Global decimation threat | A plausible and significant contributor to global decimation risk. |
| Endgame territory | Levels of global warming and societal fragility that are judged sufficiently probable to constitute climate change as an extinction threat. |
| Worst-case warming | The highest empirically and theoretically plausible level of global warming. |
We define risk as the probability that exposure to climate change impacts and responses will result in adverse consequences for human or ecological systems. For the Climate Endgame agenda, we are particularly interested in catastrophic consequences. Any risk is composed of four determinants: hazard, exposure, vulnerability, and response (3).
We have set global warming of 3 °C or more by the end of the century as a marker for extreme climate change. This threshold is chosen for four reasons: Such a temperature rise well exceeds internationally agreed targets, all the IPCC “reasons for concern” in climate impacts are either “high” or “very high” risk between 2 °C and 3 °C, there are substantially heightened risks of self-amplifying changes that would make it impossible to limit warming to 3 °C, and these levels relate to far greater uncertainty in impacts.
The closest attempts to directly study or comprehensively address how climate change could lead to human extinction or global catastrophe have come through popular science books such as The Uninhabitable Earth (53) and Our Final Warning (10). The latter, a review of climate impacts at different degrees, concludes that a global temperature rise of 6 °C “imperils even the survival of humans as a species” (10).
We know that health risks worsen with rising temperatures (54). For example, there is already an increasing probability of multiple “breadbasket failures” (causing a food price shock) with higher temperatures (55). For the top four maize-producing regions (accounting for 87% of maize production), the likelihood of production losses greater than 10% jumps from 7% annually under a 2 °C temperature rise to 86% under 4 °C (56). The IPCC notes, in its Sixth Assessment Report, that 50 to 75% of the global population could be exposed to life-threatening climatic conditions by the end of the century due to extreme heat and humidity (6). SI Appendix provides further details on several key studies of extreme climate change.
The IPCC reports synthesize peer-reviewed literature regarding climate change, impacts and vulnerabilities, and mitigation. Despite identifying 15 tipping elements in biosphere, oceans, and cryosphere in the Working Group 1 contribution to the Sixth Assessment Report, many with irreversible thresholds, there were very few publications on catastrophic scenarios that could be assessed. The most notable coverage is the Working Group II “reasons for concern” syntheses that have been reported since 2001. These syntheses were designed to inform determination of what is “dangerous anthropogenic interference” with the climate system, that the UNFCCC aims to prevent. The five concerns are unique and threatened ecosystems, frequency and severity of extreme weather events, global distribution and balance of impacts, total economic and ecological impact, and irreversible, large-scale, abrupt transitions. Each IPCC assessment found greater risks occurring at lower increases in global mean temperatures. In the Sixth Assessment Report, all five concerns were listed as very high for temperatures of 1.2 °C to 4.5 °C. In contrast, only two were rated as very high at this temperature interval in the previous Assessment Report (6). All five concerns are now at “high” or “very high” for 2 °C to 3 °C of warming (57).
We suggest a research agenda for catastrophic climate change that focuses on four key strands:
Our proposed agenda learns from and builds on integrated assessment models that are being adapted to better assess large-scale harms. A range of tipping points have been assessed (58–60), with effects varying from a 10% chance of doubling the social cost of carbon (61) up to an eightfold increase in the optimal carbon price (60). This echoes earlier findings that welfare estimates depend on fat tail risks (31). Model assumptions such as discount rates, exogenous growth rates, risk preferences, and damage functions also strongly influence outcomes.
There are large, important aspects missing from these models that are highlighted in the research agenda: longer-term impacts under extreme climate change, pathways toward mass morbidity and mortality, and the risk cascades and systemic risks that extreme climate impacts could trigger. Progress in these areas would allow for more realistic models and damage functions and help provide direct estimates of casualties (62), a necessary moral noneconomic measure of climate risk. We urge the research community to develop integrated conceptual and semiquantitative models of climate catastrophes.
Finally, we invite other scholars to revise and improve upon this proposed agenda.
We need to understand potential long-term states of the Earth system under extreme climate change. This means mapping different “Hothouse Earth” scenarios (21) or other extreme scenarios, such as alternative circulation regimes or large, irreversible changes in ice cover and sea level. This research will require consideration of long-term climate dynamics and their impacts on other planetary-level processes. Research suggests that previous mass extinction events occurred due to threshold effects in the carbon cycle that we could cross this century (40, 63). Key impacts in previous mass extinctions, such as ocean hypoxia and anoxia, could also escalate in the longer term (40, 64).
Studying potential tipping points and irreversible “committed” changes of ecological and climate systems is essential. For instance, modeling of the Antarctic ice sheet suggests there are several tipping points that exhibit hysteresis (65). Irreversible loss of the West Antarctic ice sheet was found to be triggered at ∼2 °C global warming, and the current ice sheet configuration cannot be regained even if temperatures return to present-day levels. At a 6 °C to 9 °C rise in global temperature, slow, irreversible loss of the East Antarctic ice sheet and over 40 m of sea level rise equivalent could be triggered (65). Similar studies of areas such as the Greenland ice sheet, permafrost, and terrestrial vegetation would be helpful. Identifying all the potential Earth system tipping elements is crucial. This should include a consideration of wider planetary boundaries, such as biodiversity, that will influence tipping points (66), feedbacks beyond the climate system, and how tipping elements could cascade together (67).
There are many potential contributors to climate-induced morbidity and mortality, but the “four horsemen” of the climate change end game are likely to be famine and undernutrition, extreme weather events, conflict, and vector-borne diseases. These will be worsened by additional risks and impacts such as mortality from air pollution and sea level rise.
These pathways require further study. Empirical estimates of even direct fatalities from heat stress thus far in the United States are systematically underestimated (68). A review of the health and climate change literature from 1985 to 2013 (with a proxy review up to 2017) found that, of 2,143 papers, only 189 (9%) included a dedicated discussion of more-extreme health impacts or systemic risk (relating to migration, famine, or conflict) (69). Models also rarely include adaptive responses. Thus, the overall mortality estimates are uncertain.
How can potential mass morbidity and mortality be better accounted for? 1) Track compound hazards through bottom-up modeling of systems and vulnerabilities (70) and rigorously stress test preparedness (71). 2) Apply models to higher-temperature scenarios and longer timelines. 3) Integrate risk cascades and systemic risks (see the following section) into health risk assessments, such as by incorporating morbidity and mortality resulting from a climate-triggered food price shock.
More-complex risk assessments are generally more realistic. The determinants of risk are not just hazards, vulnerabilities, and exposures, but also responses (3, 72). A complete risk assessment needs to consider climate impacts, differential exposure, systemic vulnerabilities, responses of societies and actors, and the knock-on effects across borders and sectors (73), potentially resulting in systemic crises. In the worst case(s), a domino effect or spiral could continuously worsen the initial risk.
Societal risk cascades could involve conflict, disease, political change, and economic crises. Climate change has a complicated relationship with conflict, including, possibly, as a risk factor (74) especially in areas with preexisting ethnic conflict (75). Climate change could affect the spread and transmission of infectious diseases, as well as the expansion and severity of different zoonotic infections (76), creating conditions for novel outbreaks and infections (6,77). Epidemics can, in turn, trigger cascading impacts, as in the case of COVID-19. Exposure to ecological stress and natural disasters are key determinants for the cultural “tightness” (strictness of rules, adherence to tradition, and severity of punishment) of societies (78). The literature on the median economic damages of climate change is profuse, but there is far less on financial tail risks, such as the possibility of global financial crises.
Past studies could be drawn upon to investigate societal risk. Relatively small, regional climate changes are linked to the transformation and even collapse of previous societies (79, 80). This could be due to declining resilience and the passing of tipping points in these societies. There is some evidence for critical slowing down in societies prior to their collapse (81, 82). However, care is needed in drawing lessons from premodern case studies. Prehistory and history should be studied to determine not just how past societies were affected by specific climate hazards but how those effects differ as societies change with respect to, for example, population density, wealth inequality, and governance regime. Such framing will allow past and current societies to be brought under a single system of analysis (37).
The characteristics and vulnerabilities of a modern globalized world where food and transport distribution systems can buffer against traumas will need to feature in work on societal sensitivity. Such large, interconnected systems bring their own sources of fragility, particularly if networks are relatively homogeneous, with a few dominant nodes highly connected to everyone else (83). Other important modern-day vulnerabilities include the rapid spread of misinformation and disinformation. These epistemic risks are serious concerns for public health crises (84) and have already hindered climate action. A high-level and simplified depiction of how risk cascades could unfold is provided in Fig. 3.
Fig. 3.
Climate change will unfold in a world of changing ecosystems, geopolitics, and technology. Could we even see “warm wars”—technologically enhanced great power conflicts over dwindling carbon budgets, climate impacts, or SRM experiments? Such developments and scenarios need to be considered to build a full picture of climate dangers. Climate change could reinforce other interacting threats, including rising inequality, demographic stresses, misinformation, new destructive weapons, and the overshoot of other planetary boundaries (85). There are also natural shocks, such as solar flares and high-impact volcanic eruptions, that present possible deadly synchronicities (86). Exploring these is vital, and a range of “standardized catastrophic scenarios” would facilitate assessment.
Expert elicitation, systems mapping, and participatory scenarios provide promising ways of understanding such cascades (73). There are also existing research agendas for some of these areas that could be funded (87).
Integration can be approached in several ways. Metareviews and syntheses of research results can provide useful data for mapping the interactions between risks. This could be done through causal mapping, expert elicitation, and agent-based or systems dynamics modeling approaches. One recent study mapped the evidence base for relationships between climate change, food insecurity, and contributors to societal collapse (mortality, conflict, and emigration) based on 41 studies (88).
A particularly promising avenue is to repurpose existing complex models to study cascading risks. The resulting network could be “stress tested” with standardized catastrophic scenarios. This could help estimate which areas may incur critical shortages or disruptions, or drastic responses (such as food export bans). Complex models have been developed to help understand past large-scale systemic disasters, such as the 2007–2008 global financial crisis (89). Some of these could be repurposed for exploring the potential nature of a future global climate crisis.
Systems failure is unlikely to be globally simultaneous; it is more likely to begin regionally and then cascade up. Although the goal is to investigate catastrophic climate risk globally, incorporating knowledge of regional losses is indispensable.
The potentially catastrophic risks of climate change are difficult to quantify, even within models. Any of the above-mentioned modeling approaches should provide a greater understanding of the pathways of systemic risk, and rough probabilistic guides. Yet the results could provide the foundation for argumentation-based tools to assess the potential for catastrophic outcomes under different levels of temperature rise (90). These should be fed into open deliberative democratic methods that provide a fair, inclusive, and effective approach to decision-making (91). Such approaches could draw on decision-making tools under uncertainty, such as the minimax principle or ranking decisions by the weighted sum of their best and worst outcomes, as suggested in the Dasgupta review of biodiversity (92).
The IPCC has yet to give focused attention to catastrophic climate change. Fourteen special reports have been published. None covered extreme or catastrophic climate change. A special report on “tipping points” was proposed for the seventh IPCC assessment cycle, and we suggest this could be broadened to consider all key aspects of catastrophic climate change. This appears warranted, following the IPCC’s decision framework (93). Such a report could investigate how Earth system feedbacks could alter temperature trajectories, and whether these are irreversible.
A special report on catastrophic climate change could help trigger further research, just as the “Global warming of 1.5 °C” special report (94) did. That report also galvanized a groundswell of public concern about the severity of impacts at lower temperature ranges. The impact of a report on catastrophic climate change could be even more marked. It could help bring into focus how much is at stake in a worst-case scenario. Further research funding of catastrophic and worst-case climate change is critical.
Effective communication of research results will be key. While there is concern that fear-invoking messages may be unhelpful and induce paralysis (95), the evidence on hopeful vs. fearful messaging is mixed, even across metaanalyses (96, 97). The role of emotions is complex, and it is strategic to adjust messages for specific audiences (98). One recent review of the climate debate highlighted the importance of avoiding political bundling, selecting trusted messengers, and choosing effective frames (99). These kinds of considerations will be crucial in ensuring a useful and accurate civic discussion.
There is ample evidence that climate change could become catastrophic. We could enter such “endgames” at even modest levels of warming. Understanding extreme risks is important for robust decision-making, from preparation to consideration of emergency responses. This requires exploring not just higher temperature scenarios but also the potential for climate change impacts to contribute to systemic risk and other cascades. We suggest that it is time to seriously scrutinize the best way to expand our research horizons to cover this field. The proposed “Climate Endgame” research agenda provides one way to navigate this under-studied area. Facing a future of accelerating climate change while blind to worst-case scenarios is naive risk management at best and fatally foolish at worst.
This open-access scientific paper was published in the Proceedings of the National Academy of Sciences under a Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND) or a Creative Commons Attribution (CC BY) license.
Appendix and references available here: https://www.pnas.org/doi/abs/10.1073/pnas.2108146119
Photo by Malcolm Lightbody on Unsplash.
Editor’s note: Marxism and Collapse is a new organization formed “for information and debate on the scientific sources surrounding the existential problems facing humanity in the short term (ecological crisis, energy collapse, overpopulation, resource depletion, pandemics, atomic war) and the need for a new strategic programmatic framework in the face of an inevitable nearby process of civilisational collapse and human extinction.” They reached out to Deep Green Resistance member Max Wilbert recently and invited him to participate in this written debate with Noam Chomsky and Miguel Fuentes. His comments are published here for the first time.
A few notes. First, while it is impossible to work for social change without contending with Marx and his legacy, Deep Green Resistance is not a Marxist organization. Although several of our organizers do consider themselves Marxists, others reject Marxism. Nonetheless, we see great value in dialogue with Marxist organizations and communities, just as we value in dialogue with Conservative or Libertarian organizations. Open dialogue, debate, and discussion is essential, and we are glad to see some strains of Marxism beginning to seriously contend with the unfolding ecological crisis.
Second, this debate includes comments from Guy McPherson, a man who Deep Green Resistance cut ties with after allegations surfaced of sexual misconduct. We would have preferred to remove McPherson’s comments, but left them here at the insistence of Marxism and Collapse. Be wary of this man.
This is part 1 of a 2 part written debate.
The following is the first part of the interview-debate “Climate Catastrophe, Collapse, Democracy and Socialism” between the linguist and social scientist Noam Chomsky, one of the most important intellectuals of the last century, the Chilean social researcher and referent of the Marxist-Collapsist theoretical current Miguel Fuentes, and the American scientist Guy McPherson, a specialist in the topics of the ecological crisis and climate change. One of the most remarkable elements of this debate is the presentation of three perspectives which, although complementary in many respects, offer three different theoretical and political-programmatic approaches to the same problem: the imminence of a super-catastrophic climate change horizon and the possibility of a near civilisational collapse. Another noteworthy element of this debate is the series of interpretative challenges to which Chomsky’s positions are exposed and that give this discussion the character of a true “ideological contest” between certain worldviews which, although as said before common in many respects, are presented as ultimately opposed to each other. In a certain sense, this debate takes us back, from the field of reflection on the ecological catastrophe, to the old debates of the 20th century around the dilemma between “reform or revolution”, something that is undoubtedly necessary in the sphere of contemporary discussions of political ecology.
Marxism and Collapse: In a recent discussion between ecosocialist stances and collapsist approaches represented by Michael Lowy (France), Miguel Fuentes (Chile) and Antonio Turiel (Spain), Lowy constantly denied the possibility of a self-induced capitalist collapse and criticized the idea of the impossibility of stopping climate change before it reaches the catastrophic level of 1.5 centigrade degrees of global warming. Do you think that the current historical course is heading to a social global downfall comparable, for example, to previous processes of civilization collapse or maybe to something even worse than those seen in ancient Rome or other ancient civilizations? Is a catastrophic climate change nowadays unavoidable? Is a near process of human extinction as a result of the overlapping of the current climate, energetic, economic, social and political crisis and the suicidal path of capitalist destruction, conceivable? (1) (Marxism and Collapse)
The situation is ominous, but I think Michael Lowy is correct. There are feasible means to reach the IPPC goals and avert catastrophe, and also moving on to a better world. There are careful studies showing persuasively that these goals can be attained at a cost of 2-3% of global GDP, a substantial sum but well within reach – a tiny fraction of what was spent during World War II, and serious as the stakes were in that global struggle, what we face today is more significant by orders of magnitude. At stake is the question whether the human experiment will survive in any recognizable form.
The most extensive and detailed work I know on how to reach these goals is by economist Robert Pollin. He presents a general review in our joint book Climate Crisis and the Global Green New Deal. His ideas are currently being implemented in a number of places, including some of the most difficult ones, where economies are still reliant on coal. Other eco-economists, using somewhat different models, have reached similar conclusions. Just recently IRENA, —the International Renewable Energy Agency, part of the UN– came out with the same estimate of clean energy investments to reach the IPCC goals.
There is not much time to implement these proposals. The real question is not so much feasibility as will. There is little doubt that it will be a major struggle. Powerful entrenched interests will work relentlessly to preserve short-term profit at the cost of incalculable disaster. Current scientific work conjectures that failure to reach the goal of net zero Carbon emissions by 2050 will set irreversible processes in motion that are likely to lead to a “hothouse earth,” reaching unthinkable temperatures 4-5º Celsius above pre-industrial levels, likely to result in an end to any form of organized human society.
Noam Chomsky highlights the possibility of a global warming that exceeds 4-5 degrees Celsius above pre-industrial levels within this century in his previous response, which according to him could mean, literally, the end of all forms of organised human society. Chomsky endorses what many other researchers and scientists around the world are saying. A recent report by the Breakthrough National Centre for Climate Restoration, for example, points to 2050 as the most likely date for the onset of widespread civilisational collapse. The central idea would be that, due to a sharp worsening of the current climate situation, and the possible transformation by the middle of this century of a large part of our planet into uninhabitable, a point of no return would then be reached in which the fracture and collapse of nation states and the world order would be inevitable . At the same time, he states that the needed goals to avert this catastrophe which will lay the foundations for a transition to “clean energy”, and a more just society, would still be perfectly achievable. Specifically, Chomsky says that this would only require an investment of around 2-3% of world GDP, the latter within the framework of a plan of “environmental reforms” described in the so-called “Green New Deal” of which he is one of its main advocates.
Let’s reflect for a moment on the above. On the one hand, Chomsky accepts the possibility of a planetary civilisational collapse in the course of this century. On the other hand, he reduces the solution to this threat to nothing more than the application of a “green tax”. Literally the greatest historical, economic, social, cultural and even geological challenge that the human species and civilisation has faced since its origins reduced, roughly speaking, to a problem of “international financial fundraising” consisting of allocating approximately 3% of world GDP to the promotion of “clean energies”. Let’s think about this again. A danger that, as Chomsky puts it, would be even greater than the Second World War and could turn the Earth into a kind of uninhabitable rock, should be solved either by “international tax collection” or by a plan of limited “eco-reforms” of the capitalist economic model (known as the “Green New Deal”).
But how is it possible that Chomsky, one of the leading intellectuals of the 20th century, is able to make this “interpretive leap” between accepting the possibility of the “end of all organised human society” within this century and reducing the solution to that threat to what would appear to be no more than a (rather timid) cosmetic restructuring of international capitalist finance? Who knows! What is certain, however, is that Chomsky’s response to the climate threat lags far behind not only those advocated by the ecosocialist camp and even traditional Marxism to deal with the latter, based on posing the link between the problem of the root causes of the ecological crisis and the need for a politics that defends the abolition of private ownership of the means of production as a necessary step in confronting it. Moreover, Chomsky’s treatment of the ecological crisis seems to be inferior to that which characterises all those theoretical tendencies which, such as the theory of degrowth or a series of collapsist currents, advocate the imposition of drastic plans of economic degrowth and a substantial decrease in industrial activity and global consumption levels. The latter by promoting a process of “eco-social transition” which would not be reduced to a mere change in the energy matrix and the promotion of renewable energies, but would imply, on the contrary, the transition from one type of civilisation (modern and industrial) to another, better able to adapt to the new planetary scenarios that the ecological crisis, energy decline and global resource scarcity will bring with them.
But reducing the solution of the climate catastrophe to the need for a “green tax” on the capitalist market economy is not the only error in Chomsky’s response. In my view, the main problem of the arguments he uses to defend the possibility of a successful “energy transition” from fossil fuels to so-called “clean energy” would be that they are built on mud. First, because it is false to say that so-called “clean energies” are indeed “clean” if we consider the kind of resources and technological efforts required in the implementation of the energy systems based on them. Solar or wind energy, for example, depend not only on huge amounts of raw materials associated for their construction with high polluting extractive processes (e.g., the large quantities of steel required for the construction of wind turbines is just one illustration of this), but also on the use of extensive volumes of coal, natural gas or even oil. The construction of a single solar panel requires, for instance, enormous quantities of coal. Another striking example can be seen in the dependence of hydrogen plants (specially the “grey” or “blue” types) on vast quantities of natural gas for their operations. All this without it ever being clear that the reduction in the use of fossil fuels that should result from the implementation of these “clean” technologies will be capable of effectively offsetting a possible exponential increase in its “ecological footprint” in the context of a supposedly successful energy transition .
Secondly, it is false to assume that an energy matrix based on renewable energies could satisfy the energy contribution of fossil fuels to the world economy in the short or medium term, at least, if a replication of current (ecologically unviable) patterns of economic growth is sought. Examples of this include the virtual inability of so-called “green hydrogen” power plants to become profitable systems in the long term, as well as the enormous challenges that some power sources such as solar or wind energy (highly unstable) would face in meeting sustained levels of energy demand over time. All this without even considering the significant maintenance costs of renewable energy systems, which are also associated (as said) with the use of highly polluting raw materials and a series of supplies whose manufacture also depend on the use of fossil fuels .
But the argumentative problems in Chomsky’s response are not limited to the above. More importantly is that the danger of the climate crisis and the possibility of a planetary collapse can no longer be confined to a purely financial issue (solvable by a hypothetical allocation of 3% of world GDP) or a strictly technical-engineering challenge (solvable by the advancement of a successful energy transition). This is because the magnitude of this problem has gone beyond the area of competence of economic and technological systems, and has moved to the sphere of the geological and biophysical relations of the planet itself, calling the very techno-scientific (and economic-financial) capacities of contemporary civilisation into question. In other words, the problem represented by the current levels of carbon dioxide in the atmosphere, or those related to the unprecedented advances in marine acidification, Arctic melting, or permafrost decomposition rates, would today constitute challenges whose solution would be largely beyond any of our scientific developments and technological capabilities. Let’s just say that current atmospheric carbon dioxide levels (already close to 420 ppm) have not been seen for millions of years on Earth. On other occasions I have defined this situation as the development of a growing “terminal technological insufficiency” of our civilisation to face the challenges of the present planetary crisis .
In the case of current atmospheric CO2 concentrations, for example, there are not and will not be for a long time (possibly many decades or centuries), any kind of technology capable of achieving a substantial decrease of those concentrations. This at least not before such concentrations continue to skyrocket to levels that could soon guarantee that a large part of our planet will become completely uninhabitable in the short to medium term. In the case of CO2 capture facilities, for instance, they have not yet been able to remove even a small (insignificant) fraction of the more than 40 billion tonnes of carbon dioxide emitted each year by industrial society . Something similar would be the situation of other ecological problems such as the aforementioned increase in marine acidification levels, the rise in ocean levels or even the increasingly unmanageable proliferation of space debris and the consequent danger it represents for the (immediate) maintenance of contemporary telecommunication systems. In other words, again, increasing threatening problems for which humanity has no effective technologies to cope, at least not over the few remaining decades before these problems reach proportions that will soon call into question our very survival as a species.
Unsolvable problems, as unsolvable as those that would confront anyone seeking to “restore” a clay pot or a glass bottle to its original state after it has been shattered into a thousand fragments by smashing it against a concrete wall! To restore a glass of the finest crystal after it has been smashed to pieces? Not even with the investment of ten, a hundred world GDPs would it be possible! This is what we have done with the world, the most beautiful of the planetary crystals of our solar system, blown into a thousand pieces by ecocidal industrialism! To restore? To resolve? Bollocks! We have already destroyed it all! We have already finished it all! And no “financial investment” or “technological solution” can prevent what is coming: death! To die then! To die… and to fight to preserve what can be preserved! To die and to hope for the worst, to conquer socialism however we can, on whatever planet we have, and to take the future out of the hands of the devil himself if necessary! That is the task of socialist revolution in the 21st century! That is the duty of Marxist revolutionaries in the new epoch of darkness that is rising before us! That is the mission of Marxism-Collapsist!
Throughout history, all civilizations undermine their own ecological foundations, face disease, war, political instability, and the breakdown of basic supply chains, and eventually collapse.
Modern technology and scientific knowledge does not make us immune from this pattern. On the contrary, as our global civilization has harnessed more energy, expanded, and grown a larger population than ever before in history, the fall is certain to be correspondingly worse. What goes up must come down. This is a law of nature. The only question is, when?
Professor Chomsky’s argument that collapse of civilization can be averted at a relatively minor cost by diverting 2-3% of global GDP to transition to renewable energy and fund a *Global Green New Deal* does not contend with the physical constraints civilization faces today. The global energy system, which powers the entire economy, is the largest machine in existence and was built over more than a century during a period of abundant fossil fuels and easy-to-access minerals and raw materials. It was powered by the *last remnants of ancient sunlight*, fossil fuels condensed into an extremely dense form of energy that is fungible and easily transportable.
That era is over. Accessible reserves of minerals, oil, and gas are gone, and we are long since into the era of extreme energy extraction (fracking, deepwater drilling, arctic drilling, tar sands, etc.). Simply replacing fossil fuels with solar and wind energy and phasing out all liquid and solid fuel (which still makes up roughly 80% of energy use) in favor of electrification of transportation, heating, etc. is not a simple task in an era of declining energy availability, increasing costs, extreme weather, political and financial instability, and resource scarcity. And these so-called “renewable” technologies still have major environmental impacts (for example, see solar impacts on desert tortoise, wind energy impacts on bat populations, and lithium mining impacts on sage-grouse), even if they do reduce carbon emissions—which is not yet proven outside of models.
In practice, renewable energy technologies seem to be largely serving as a profitable investment for the wealthy, a way to funnel public money into private hands, and a distraction from the scale of the ecological problems we face (of which global warming is far from the worst) and the scale of solutions which are needed. This is, as Miguel Fuentes points out, a rather timid cosmetic restructuring of the dominant political and economic order.
In our book *Bright Green Lies: How the Environmental Movement Lost Its Way and What We Can Do About It*, my co-authors and I call this “solving for the wrong variable.” We write: “Our way of life [industrial modernity] doesn’t need to be saved. The planet needs to be saved from our way of life… we are not saving civilization; we are trying to save the world.” Scientists like Tim Garrett at the University of Utah model civilization as a “heat engine,” a simple thermodynamic model that will consume energy and materials until it can no longer do so, then collapse. Joseph Tainter, the scholar of collapse, writes that “in the evolution of a society, continued investment in complexity as a problem-solving strategy yields a declining marginal return.” This is our reality.
Whether sanity prevails and we succeed in building a new politics and new societies organized around rapidly scaling down the human enterprise to sustainable levels, or we continue down the business-as-usual path we are on, the future looks either grim or far more dire. Global warming will continue to worsen for decades even if, by some miracle, we are able to dismantle the fossil fuel industry and restore the ecology of this planet. The 6th mass extinction event and ecological collapse aren’t a distant future. We are in the depths of these events, and they’ve been getting worse for centuries. The question is not “can we avoid catastrophe?” It’s too late for that. The question is, “how much of the world will be destroyed?” Will elephants survive? Coral reefs? Tigers? The Amazon Rainforest? Will humans? What will we leave behind?
I want to leave behind as much biodiversity and ecological integrity as possible. Human extinction seems unlikely, at least in coming decades, unless runaway global warming accelerates faster than predicted. “Unlikely” is not “impossible,” but there are 8 billion of us, and we are profoundly adaptable. I am far less worried about human extinction than about the extinction of countless other species—100 per day. I am far more worried about the collapse of insect populations or phytoplankton populations (which provide 40% of all oxygen on the planet and are the base of the oceanic food web). The fabric of life itself is fraying, and we are condemning unborn human generations to a hellish future and countless non-humans to the extinction. Extinction will come for humans, at some point. But at this point, I am not concerned for our species, but rather for the lives of my nephews and their children, and the salmon on the brink of extermination, and the last remaining old-growth forests.
Guy McPherson:
There is no escape from the mass extinction event underway. Only human arrogance could suggest otherwise. Our situation is definitely terminal. I cannot imagine that there will be a habitat for Homo sapiens beyond a few years in the future. Soon after we lose our habitat, all individuals of our species will die out. Global warming has already passed two degrees Celsius above the 1750 baseline, as noted by the renowned Professor Andrew Glikson in his October 2020 book “The Event Horizon”. He wrote on page 31 of that book: “During the Anthropocene, greenhouse gas forcing increased by more than 2.0 W/m2, equivalent to more than > 2°C above pre-industrial temperatures, which is an abrupt (climate change) event taking place over a period not much longer than a generation”.
So yes. We have definitely passed the point of no return in the climate crisis. Even the incredibly conservative Intergovernmental Panel on Climate Change (IPCC) has already admitted the irreversibility of climate change in its 24 September 2019 “Special Report on the Ocean and Cryosphere in a Changing Climate”. A quick look around the globe will also reveal unprecedented events such as forest fires, floods and mega-droughts. The ongoing pandemic is just one of many events that are beginning to overwhelm human systems and our ability to respond positively.
All species are going extinct, including more than half a dozen species of the genus Homo that have already disappeared. According to the scientific paper by Quintero and Wiens published in Ecology Letters on 26 June 2013, the projected rate of environmental change is 10.000 times faster than vertebrates can adapt to. Mammals also cannot keep up with these levels of change, as Davis and colleagues’ paper published in the Proceedings of the National Academy of Sciences on 30 October 2018 points out. The fact that our species is a vertebrate mammal suggests that we will join more than 99% of the species that have existed on Earth that have already gone extinct. The only question in doubt is when. In fact, human extinction could have been triggered several years ago when the Earth’s average global temperature exceeded 1.5 degrees Celsius above the 1750 baseline. According to a comprehensive overview of this situation published by the European Strategy and Policy Analysis System in April 2019, a “1.5 degree increase is the maximum the planet can tolerate; (…) in a worst-case scenario, [such a temperature increase above the 1750 baseline will result in] the extinction of humanity altogether”.
All species need habitat to survive. As Hall and colleagues reported in the Spring 1997 issue of the Wildlife Society Bulletin: “We therefore define habitat ‘as the resources and conditions present in an area that produce occupancy, including survival and reproduction, of a given organism. Habitat is organism-specific; it relates the presence of a species, population or individual (…) to the physical and biological characteristics of an area. Habitat implies more than vegetation or the structure of that vegetation; it is the sum of the specific resources needed by organisms. Whenever an organism is provided with resources that allow it to survive, that is its habitat’”. Even tardigrades are not immune to extinction. Rather, they are sensitive to high temperatures, as reported in the 9 January 2020 issue of Scientific Reports. Ricardo Cardoso Neves and collaborators point out there that all life on Earth is threatened with extinction with an increase of 5-6 degrees Celsius in the global average temperature. As Strona and Corey state in another article in Scientific Reports (November 13, 2018) raising the issue of co-extinctions as a determinant of the loss of all life on Earth: “In a simplified view, the idea of co-extinction boils down to the obvious conclusion that a consumer cannot survive without its resources”.
From the incredibly conservative Wikipedia entry entitled “Climate change” comes this supporting information: “Climate change includes both human-induced global warming and its large-scale impacts on weather patterns. There have been previous periods of climate change, but the current changes are more rapid than any known event in Earth’s history.” The Wikipedia entry further cites the 8 August 2019 report “Climate Change and Soils”, published by the Intergovernmental Panel on Climate Change (IPCC). The IPCC is among the most conservative scientific bodies in history. Yet it concluded in 2019 that the Earth is in the midst of the most rapid environmental change seen in planetary history, citing scientific literature that concludes: “These rates of human-driven global change far exceed the rates of change driven by geophysical or biospheric forces that have altered the trajectory of the Earth System in the past (Summerhayes 2015; Foster et al. 2017); nor do even abrupt geophysical events approach current rates of human-driven change”.
The Wikipedia entry also points out the consequences of the kind of abrupt climate change currently underway, including desert expansion, heat waves and wildfires becoming increasingly common, melting permafrost, glacier retreat, loss of sea ice, increased intensity of storms and other extreme environmental events, along with widespread species extinctions. Another relevant issue is the fact that the World Health Organisation has already defined climate change as the greatest threat to global health in the 21st century. The Wikipedia entry continues: “Under the 2015 Paris Agreement, nations collectively agreed to keep warming ‘well below 2.0 degrees C (3.6 degrees F) through mitigation efforts’”. But Professor Andrew Glikson already pointed out as we said in his aforementioned book The Event Horizon that the 2 degrees C mark is already behind us. Furthermore, as we already indicated, the IPCC also admitted the irreversibility of climate change in its “Special Report on the Ocean and Cryosphere in a Changing Climate”. Therefore, 2019 was an exceptional year for the IPCC, as it concluded that climate change is abrupt and irreversible.
How conservative is the IPCC? Even the conservative and renowned journal BioScience includes an article in its March 2019 issue entitled “Statistical language supports conservatism in climate change assessments”. The paper by Herrando-Perez and colleagues includes this information: “We find that the tone of the IPCC’s probabilistic language is remarkably conservative (…) emanating from the IPCC’s own recommendations, the complexity of climate research and exposure to politically motivated debates. Harnessing the communication of uncertainty with an overwhelming scientific consensus on anthropogenic climate change should be one element of a broader reform, whereby the creation of an IPCC outreach working group could improve the transmission of climate science to the panel’s audiences”. Contrary to the conclusion of Herrando-Perez and colleagues, I cannot imagine that the IPCC is really interested in conveying accurate climate science to its audiences. After all, as Professor Michael Oppenheimer noted in 2007, the US government during the Reagan administration “saw the creation of the IPCC as a way to prevent the activism stimulated by my colleagues and me from controlling the political agenda”.
Marxism and Collapse: Have the human species become a plague for the planet? If so, how can we still conciliate the survival of life on Earth with the promotion of traditional modern values associated with the defence of human and social rights (which require the use of vast amounts of planetary resources) in a context of a potential increase of world’s population that could reach over twelve billion people this century? The latter in a context in which (according to several studies) the maximum number of humans that Earth could have sustained without a catastrophic alteration of ecosystems should have never exceeded the billion. Can the modern concept of liberal (or even socialist) democracy and its supposedly related principles of individual, identity, gender, or cultural freedom survive our apparent terminal geological situation, or it will be necessary to find new models of social organization, for example, in those present in several indigenous or native societies? Can the rights of survival of living species on Earth, human rights, and the concept of modern individual freedom be harmoniously conciliated in the context of an impending global ecosocial disaster?
Let’s begin with population growth. There is a humane and feasible method to constrain that: education of women. That has a major effect on fertility in both rich regions and poor, and should be expedited anyway. The effects are quite substantial leading to sharp population decline by now in parts of the developed world. The point generalizes. Measures to fend off “global ecosocial disaster” can and should proceed in parallel with social and institutional change to promote values of justice, freedom, mutual aid, collective responsibility, democratic control of institutions, concern for other species, harmony with nature –values that are commonly upheld by indigenous societies and that have deep roots in popular struggles in what are called the “developed societies” –where, unfortunately, material and moral development are all too often uncorrelated.
Chomsky’s allusions to the promotion of women’s education and the social values of justice, freedom, mutual aid, and harmony with nature, as “moral values” disconnected from a broader critique of the industrial system, capitalism, and the class society within which threats such as global warming have been generated and aggravated, become mere phrases of good intentions. On the contrary, the realization of these principles must be thought within a context of a large-scale world social transformation. The latter if those principles are to be effective in combatting the challenges facing humanity today and the kind of civilisational crisis that is beginning to unfold as a product of the multiple eco-social (ecological, energy and resource) crises that are advancing globally. In other words, a process of historical transformation that can envisage the abolition of the current ecocidal industrial economic system, and its replacement by one in which production, exchange and distribution can be planned in accordance with social needs.
But even a traditional socialist approach to these problems, such as the one above, also falls short of accounting for the kind of planetary threats we face. Let’s put it this way, the discussion around the ecological crisis and the rest of the existential dangers hanging over the fate of our civilisation today really only begins, not ends, by giving it a proper Marxist contextualisation. One of the underlying reasons for this is that the traditional socialist project itself, in all its variants (including its more recent ecosocialist versions), would also already be completely insufficient to respond to the dangers we are facing as a species. That is, the kind of dangers and interpretative problems that none of the Marxists theoreticians of social revolution over the last centuries had ever imagined possible, from Marx and Engels to some of the present-day exponents of ecosocialism such as John Bellamy Foster or Michael Lowy .
One of these new types of problems that revolutionary theories are facing today is that of the current uncontrolled demographic growth rates of humanity. A problem that would already confer on us, amongst other things, the condition of one of the worst biological (or, in our case, “biosocial”) plagues existing to this day. This if we consider the absolutely devastating role that our species has been exerting on the biosphere in the last centuries. A plague that would be even comparable in its destructive power to that represented by the cyanobacteria that triggered the first mass extinction event on Earth some 2.4 billion years ago, although in our case at an even more accelerated and “efficient” pace than the latter. Is this statement too brutal? Maybe, from a purely humanist point of view, alien to the kind of problems we face today, but not from an eminently scientific perspective. Or can there be any doubt about our condition as a “planetary plague” for any ecologist studying the current patterns of behaviour, resource consumption and habitat destruction associated with our species? Too brutal a statement? Tell it to the more than 10.000 natural species that become extinct every year as a result of the role of a single species on the planet: ours! Tell it to the billions of animals killed in the great fires of Australia or the Amazon a few years ago! Tell it to the polar bears, koalas, pikas, tigers, lions, elephants, who succumb every year as a product of what we have done to the Earth! Very well, we are then a “plague”, although this term would only serve to classify us as a “biological species”, being therefore too “limited” a definition and lacking any social and historical perspective. Right?
Not really. The fact that we possess social and cultural systems that differentiate us from other complex mammals does not mean that our current status as a “plague of the world” should be confined to the biological realm alone. On the contrary, this just means that this status could also have a certain correlation in the social and cultural dimension; that is, in the sphere of the social and cultural systems particular to modern society. To put it in another way, even though our current condition of “plague of the world” has been acquired by our species within the framework of a specific type of society, mode of production and framework of particular historical relations, characteristic of industrial modernity, this does not mean that this condition should be understood as a merely historical product. That is, excluding its biological and ecological dimension. In fact, beyond the differentiated position and role of the various social sectors that make up the productive structure and the socio-economic systems of the industrial society (for example, the exploiting and exploited social classes), it is indeed humanity as a whole: rich and poor, entrepreneurs and workers, men and women, who share (all of us) the same responsibility as a species (although admittedly in a differentiated way) for the current planetary disaster. An example of the above. Mostly everything produced today by the big multinationals, down to the last grain of rice or the last piece of plastic, is consumed by someone, whether in Paris, London, Chisinau or La Paz. And we should also remember that even biological plagues (such as locusts) may have different consumption patterns at the level of their populations, with certain sectors being able to consume more and others consuming less. However, just because one sector of a given biological plague consumes less (or even much less), this sector should not necessarily be considered as not belonging to that plague in question.
Another similar example: it is often claimed in Marxist circles (sometimes the numbers vary according to each study) that 20% of humanity consumes 80% of the planetary resources. This means that approximately 1.600.000.000.000 people (assuming a total population of 8 billion) would be the consumers of that 80% of planetary resources; that is, a number roughly equivalent to three times the current European population. In other words, what this sentence really tells us is that a much larger segment of the world’s population than the capitalist elites (or their political servants) would also bear a direct, even grotesque, responsibility for the unsustainable consumption patterns that have been aggravating the current planetary crisis. Or, to put it in more “Marxist” terms, that a large percentage (or even the totality) of the working classes and popular sectors in Europe, the United States, and a significant part of those in Latin America and other regions of the so-called “developing countries”, would also be “directly complicit”, at least in regards of the reproduction of the current ecocidal modern urban lifestyle, in the destruction of our planet.
But let us extend the discussion to the remaining 80% of humanity; that is, to the approximately 6.400.000.000.000 people who consume 20% of the planetary resources used in a year. To begin with, let us say that 20% of global resources is not a negligible percentage, representing in fact a fifth of them and whose production would be associated with substantial and sustained levels of environmental destruction. The latter in the context of an ever-growing world population that possibly should never have exceeded one billion inhabitants, so that we would have been in a position today to stop or slow down the disastrous impact we are having on ecosystems. Let us not forget that the number of people included in this 80% of the world’s population is more than four times higher than the entire human population at the beginning of the 20th century, which means that the number of basic resources necessary for the survival of this sector is an inevitable pressure on the earth’s natural systems, even if consumption levels are kept to a minimum.
In short, there is therefore no doubt that humanity has indeed become one of the worst planetary plagues in the history of terrestrial life, constituting this a (fundamental) problem in itself for contemporary revolutionary thought and, more generally, for the human and social sciences as a whole. In other words, a problem that today would not be solved by a mere change in the mode of production, the class structure, or the socio-political system, but would be associated with the very “genetics” of the development of industrial society. That is to say, a society based on a particularly destructive (voracious) form of human-nature relationships, which would be at the same time the “structural basis” of all possible and conceivable models of it (capitalists, socialists or any other type). Whether in the framework of a neo-liberal market economy or a socialist and/or collectivist planned economy, it is the industrial system and modern mass society in all its variants, whether capitalist or socialist, its mega-cities, its productive levels, its consumption patterns and lifestyles, its “anthropocentric spirit”, structurally associated with certain demographic patterns in which the Earth is conceived as a mere space for human consumption and reproduction… that is the main problem.
Is it possible to reconcile current levels of overpopulation with the survival requirements of our species? No. We have become a planetary plague and will remain a planetary plague until such time as, by hook or by crook (almost certainly by crook) our numbers are substantially reduced and remain at the minimum possible levels, for at least a few centuries or millennia. Is it possible to solve the problem of overpopulation and at the same time defend the legitimacy of traditional modern values associated with the promotion of human and social rights, at least as these values have been understood in recent centuries? No. Modernity has failed. Modernity is dead. We are going to have to rethink every single one of our values, including the most basic ones, all of them. We are going to have to rethink who we are, where we are going and where we come from. The existence of almost 8 billion people on our planet today, and moreover the likely increase of this number to one that reaches 10 or even 12 billion is not only incompatible with the realisation of the very ideals and values of modern democracy in all its variants (capitalists or socialists), but also with the very survival of our species as a whole and, possibly, of all complex life on Earth. This simply because there will be nowhere near enough resources to ensure the realization of these values (or even our own subsistence) in such a demographic context (there simply won’t be enough food and water). Our situation is terminal. Modernity is dead. Democracy is dead. Socialism is dead. And if we want these concepts -democracy or socialism- to really have any value in the face of the approaching catastrophe, then we will have to rethink them a little more humbly than we have done so far.
Modern civilisation has borne some of the best fruits of humanity’s social development, but also some of the worst. We are in some ways like the younger brother of a large family whose early successes made him conceited, stupid and who, thinking of himself as “master of the world”, began to lose everything. We are that young man. We should therefore shut up, put our ideologies (capitalists and socialists) in our pockets, and start learning a little more from our more modest, slower and more balanced “big brothers”; for example, each of the traditional or indigenous societies which have been able to ensure their subsistence for centuries and in some cases even millennia. The latter while industrial society would not even have completed three centuries before endangering its own existence and that of all other cultures on the planet. In a few words, start learning from all those traditional societies that have subsisted in the context of the development of social systems that are often much more respectful of ecological and ecosystemic balances. Those “ecosocial balances” which are, in the end, in the long view of the evolution of species, the real basis for the development of any society… because without species (be they animal or plant), any human culture is impossible. Scientific and technological progress? Excellent idea! But perhaps we could take the long route, think things through a bit more, and achieve the same as we have achieved today in two centuries, but perhaps taking a bit longer, say ten, twenty or even a hundred centuries? Who’s in a hurry? Let us learn from the tortoise which, perhaps because it is slow, has survived on Earth for more than 220 million years, until we (who as Homo sapiens are no more than 250.000 years old) came along and endangered it.
Human population is a hockey-stick graph that corresponds almost exactly with rising energy use. Most of the nitrogen in our diet comes from fossil fuel-based fertilizers. Norman Borlaug, the plant breeder who won the Nobel Peace Prize for his work on the Green Revolution, said in his acceptance speech that “we are dealing with two opposing forces, the scientific power of food production and the biologic power of human reproduction… There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.”
Ideally, this situation could be dealt with humanely by education and making family planning and women’s health services available. The best example of this actually comes from Iran, where under a religious theocracy in the wake of the Iran-Iraq war, birth rates were reduced from around 7 children per woman to less than replacement in little more than a decade (the policy was since reversed, and Iran’s land and water is paying the price). Technically, it’s quite easy to solve overpopulation humanely; reduce birth rates to less than replacement levels, then wait. Politically, it’s much harder. As we’ve seen with the recent fall of abortion rights in the US, the political battle for control of women’s reproduction is alive and well, and basic ecology is anathema to many political leaders and populations.
Unless we take action to reduce our population willingly, it will happen unwillingly as the planet’s ecology fails to be able to support us. That will be harsh. Any species that exceeds the carrying capacity of the environment it lives in will experience a population crash, usually due to starvation, disease, and predation. That’s our choice. Either we make the right decisions, or we pay the price.
The difference between our situation today and the Indus Valley civilization or the Roman Empire is that today civilization is globalized. The collapse of global industrial civilization, as I wrote above, is coming. I don’t believe it can be stopped at this point; in fact, I believe it is already in progress. But collapse is also not simply an overnight chaotic breakdown of all social order. We can define collapse as a rapid simplification of a complex society characterized by breakdown of political and social institutions, a return to localized, low energy ways of life, and usually a significant reduction in population (which is a nice way of saying, a lot of people die).
Collapse should be looked at as having good and bad elements. Good elements, from my perspective, include reducing consumption and energy use, localizing our lives, and having certain destructive institutions (for example, the fossil fuel industry) fade away. Bad elements might include breakdown of basic safety and rising violence, mass starvation, disease, and, for example, the destruction of local forests for firewood if electricity is no longer available for heating. Some aspects of collapse have elements of both. For example, the collapse of industrial agriculture would be incredibly beneficial for the planet but would lead to mass human die offs.
If collapse is coming regardless of what we want, it’s our moral and ecological responsibility to make the best of the situation by assisting and accelerating the positive aspects of collapse (for example, by working to reduce consumption and dismantle oil infrastructure) and help prevent or mitigate the negative aspects (for example, by working to reduce population growth and build localized sustainable food systems).
As I write this, I am looking into a meadow between 80-year-old oak trees. A deer and her fawn are walking through the grass. Birds are singing in the trees. A passenger jet roars overhead, and the hum of traffic floats over the hills. There is a fundamental contradiction between industrial civilization and ecology, and the organic tensions created by this contradiction are rising. These are dire and revolutionary times, and it is our responsibility to navigate them.
Guy McPherson:
As ecologists have been pointing out for decades, environmental impacts are the result of human population size and human consumption levels. The Earth can support many more hunter-gatherers than capitalists seeking more material possessions. Unfortunately, we are stuck with the latter rather than the former. Ecologists and environmentalists have been proposing changes in human behaviour since at least the early 20th century. These recommendations have fallen on deaf ears. However, even if it is possible to achieve substantial changes in human behaviour, and if they result in an effective slowing down or stopping of industrial activity, it is questionable whether this is a useful means of ensuring our continued survival. One reason for this lies in the knowledge of what the effect of “aerosol masking” could mean for the climate crisis.
The “climate masking” effect of aerosols has been discussed in the scientific literature since at least 1929, and consists of the following: at the same time as industrial activity produces greenhouse gases that trap part of the heat resulting from sunlight reaching the Earth, it also produces small particles that prevent this sunlight from even touching the surface of the planet. These particles, called “aerosols”, thus act as a kind of umbrella that prevents some of the sunlight from reaching the earth’s surface (hence this phenomenon has also been referred to as “global dimming”) . In other words, these particles (aerosols) prevent part of the sun’s rays from penetrating the atmosphere and thus inhibit further global warming. This means, then, that the current levels of global warming would in fact be much lower than those that should be associated with the volumes of greenhouse gases present in the atmosphere today (hence the designation of this phenomenon as “climate masking”). To put it in a simpler way, the global warming situation today would actually be far more serious than is indicated not only by the very high current global temperatures, but also by the (already catastrophic) projections of rising global temperatures over the coming decades. This is especially important if we consider the (overly optimistic) possibility of a future reduction in the amount of aerosols in the atmosphere as a result of a potential decrease in greenhouse gas emissions over the next few years, which should paradoxically lead, therefore, to a dramatic increase in global temperatures.
Global temperatures should then not only be much higher than they are today, but the expected rise in global temperatures will necessarily be more intense than most climate models suggest. According to the father of climate science, James Hansen, it takes about five days for aerosols to fall from the atmosphere to the surface. More than two dozen peer-reviewed papers have been published on this subject and the latest of these indicates that the Earth would warm by an additional 55% if the “masking” effect of aerosols were lost, which should happen, as we said, as a result of a marked decrease or modification of industrial activity leading to a considerable reduction in greenhouse gas emissions. This study suggests that this could potentially lead to an additional (sudden) increase in the earth’s surface temperature by about 133% at the continental level. This article was published in the prestigious journal Nature Communications on 15 June 2021. In conclusion, the loss or substantial decrease of aerosols in the atmosphere could therefore lead to a potential increase of more than 3 degrees Celsius of global warming above the 1750 baseline very quickly. I find it very difficult to imagine many natural species (including our own) being able to withstand this rapid pace of environmental change.
In reality, a mass extinction event has been underway since at least 1992. This was reported by Harvard professor Edward O. Wilson, the so-called “father of biodiversity”, in his 1992 and 2002 books The Diversity of Life and The Future of Life, respectively. The United Nations Environment Programme also reported in August 2010 that every day we are leading to the extinction of 150 to 200 species. This would thus be at least the eighth mass extinction event on Earth. The scientific literature finally acknowledged the ongoing mass extinction event on 2 March 2011 in Nature. Further research along these lines was published on 19 June 2015 in Science Advances by conservation biologist Gerardo Ceballos and colleagues entitled “Accelerated human-induced losses of modern species: entering the sixth mass extinction”. Coinciding with the publication of this article, lead author Ceballos stated that “life would take many millions of years to recover and that our species would probably soon disappear”. This conclusion is supported by subsequent work indicating that terrestrial life did not recover from previous mass extinction events for millions of years. It is true, however, that indigenous perspectives can help us understand ongoing events. However, I am convinced that rationalism is key to a positive response to these events.
Noam Chomsky is an American linguist, philosopher, cognitive scientist, historian, social critic, and political activist. He adheres to the ideas of libertarian socialism and anarcho-syndicalism. He advocates a New Green Deal policy as one of the ways of dealing with the ecological crisis.
Miguel Fuentes is a Chilean social researcher in the fields of history, archaeology, and social sciences. International coordinator of the platform Marxism and Collapse and exponent of the new Marxist-Collapsist ideology. He proposes the need for a strategic-programmatic updating of revolutionary Marxism in the face of the new challenges of the Anthropocene and the VI mass extinction.
Max Wilbert is an organizer, writer, and wilderness guide. He has been part of grassroots political work for 20 years. He is the co-author of Bright Green Lies: How The Environmental Movement Lost Its Way and What We Can Do About It, which was released in 2021. He is the co-founder of Protect Thacker Pass and part of Deep Green Resistance.
Guy McPherson is an American scientist, professor emeritus of natural resources, ecology, and evolutionary biology. He adheres to anarchism and argues the inevitability of human extinction and the need to address it from a perspective that emphasises acceptance, the pursuit of love and the value of excellence.
The final version of this document has been edited by Dutch archaeologist Sven Ransijn.
The debate between Michael Lowy, Miguel Fuentes, and Antonio Turiel (which also included critical comments by Spanish Marxist ecologist Jaime Vindel, Argentinean left-wing leader Jorge Altamira and Chilean journalist Paul Walder) can be reviewed in full in the debate section of the Marxism and Collapse website at the following link: www.marxismoycolapso.com/debates.