by Deep Green Resistance News Service | Nov 11, 2013 | Agriculture, Climate Change, Listening to the Land
By Max Wilbert / Deep Green Resistance Great Basin
In June 1988, climatologist and NASA scientist James Hansen stood before the Energy and Natural Resources Committee in the United States Senate. The temperature was a sweltering 98 degrees.
“The earth is warmer in 1988 than at any time in the history of instrumental measurements,” Hansen said. “The global warming now is large enough that we can ascribe with a high degree of confidence a cause-and-effect relationship to the greenhouse effect… Our computer climate simulations indicate that the greenhouse effect is already large enough to begin to effect the probability of extreme events such as summer heat waves.”
Hansen has authored some of the most influential scientific literature around climate change, and like the vast majority of climate scientists, has focused his work on the last 150 to 200 years – the period since the industrial revolution.
This period has been characterized by the widespread release of greenhouse gases like carbon dioxide (CO2) and methane (CH4), and by the clearing of land on a massive scale – the plowing of grasslands and felling of forests for cities and agricultural crops.
Now, the world is on the brink of catastrophic climate change. Hansen and other scientists warn us that if civilization continues to burn fossil fuels and clear landscapes, natural cycles may be disrupted to the point of complete ecosystem breakdown – a condition in which the planet is too hot to support life. Hansen calls this the Venus Syndrome, named after the boiling planet enshrouded in clouds of greenhouse gases.
“If we also burn the tar sands and tar shale [low grade, high carbon fossil fuels], I believe the Venus syndrome is a dead certainty,” Hansen has said.
If humanity wishes to have a chance of avoiding this fate, it is important that we understand global warming in detail. Why is it happening? When did it start? What fuels it? And, most importantly, what can stop it?
How old is global warming?
New studies are showing that the current episode of global warming may be a great deal older than previously believed – which may entirely change our strategy to stop it.
While fossil fuels have only been burned on a large scale for 200 years, land clearance has been a defining characteristic of civilizations – cultures based around cities and agriculture – since they first emerged around 8,000 years ago.
This land clearance has impacts on global climate. When a forest ecosystem is converted to agriculture, more than two thirds of the carbon that was stored in that forest is lost, and additional carbon stored in soils rich in organic materials will continue to be lost to the atmosphere as erosion accelerates.
Modern science may give us an idea of the magnitude of the climate impact of this pre-industrial land clearance. Over the past several decades of climate research, there has been an increasing focus on the impact of land clearance on modern global warming. The Intergovernmental Panel on Climate Change, in it’s 2004 report, attributed 17% of global emissions to cutting forests and destroying grasslands – a number which does not include the loss of future carbon storage or emissions directly related to this land clearance, such as methane released from rice paddies or fossil fuels burnt for heavy equipment.
Some studies show that 50% of the global warming in the United States can be attributed to land clearance – a number that reflects the inordinate impact that changes in land use can have on temperatures, primarily by reducing shade cover and evapotranspiration (the process whereby a good-sized tree puts out thousands of gallons of water into the atmosphere on a hot summer day – their equivalent to our sweating).
So if intensive land clearance has been going on for thousands of years, has it contributed to global warming? Is there a record of the impacts of civilization in the global climate itself?
10,000 years of Climate Change
According to author Lierre Keith, the answer is a resounding yes. Around 10,000 years ago, humans began to cultivate crops. This is the period referred to as the beginning of civilization, and, according to the Keith and other scholars such as David Montgomery, a soil scientist at the University of Washington, it marked the beginning of land clearance and soil erosion on a scale never before seen – and led to massive carbon emissions.
“In Lebanon (and then Greece, and then Italy) the story of civilization is laid bare as the rocky hills,” Keith writes. “Agriculture, hierarchy, deforestation, topsoil loss, militarism, and imperialism became an intensifying feedback loop that ended with the collapse of a bioregion [the Mediterranean basin] that will most likely not recover until after the next ice age.”
Montgomery writes, in his excellent book Dirt: The Erosion of Civilizations, that the agriculture that followed logging and land clearance led to those rocky hills noted by Keith.
“It is my contention that the invention of [agriculture] fundamentally altered the balance between soil production and soil erosion – dramatically increasing soil erosion.
Other researchers, like Jed Kaplan and his team from the Avre Group at the Ecole Polytechnique Fédérale de Lausanne in Switzerland, have affirmed that preindustrial land clearance has had a massive impact on the landscape.
“It is certain that the forests of many European countries were substantially cleared before the Industrial Revolution,” they write in a 2009 study.
Their data shows that forest cover declined from 35% to 0% in Ireland over the 2800 years before the beginning of the Industrial Revolution. The situation was similar in Norway, Finland, Iceland, where 100% of the arable land was cleared before 1850.
Similarly, the world’s grasslands have been largely destroyed: plowed under for fields of wheat and corn, or buried under spreading pavement. The grain belt, which stretches across the Great Plains of the United States and Canada, and across much of Eastern Europe, southern Russia, and northern China, has decimated the endless fields of constantly shifting native grasses.
The same process is moving inexorably towards its conclusion in the south, in the pampas of Argentina and in the Sahel in Africa. Thousands of species, each uniquely adapted to the grasslands that they call home, are being driven to extinction.
“Agriculture in any form is inherently unsustainable,” writes permaculture expert Toby Hemenway. “We can pass laws to stop some of the harm agriculture does, but these rules will reduce harvests. As soon as food gets tight, the laws will be repealed. There are no structural constraints on agriculture’s ecologically damaging tendencies.”
As Hemenway notes, the massive global population is essentially dependent on agriculture for survival, which makes political change a difficult proposition at best. The seriousness of this problem is not to be underestimated. Seven billion people are dependent on a food system – agricultural civilization – that is killing the planet.
The primary proponent of the hypothesis – that human impacts on climate are as old as civilization – has been Dr. William Ruddiman, a retired professor at the University of Virginia. The theory is often called Ruddiman’s Hypothesis, or, alternately, the Early Anthropocene Hypothesis.
Ruddiman’s research, which relies heavily on atmospheric data from gases trapped in thick ice sheets in Antarctica and Greenland, shows that around 11,000 years ago carbon dioxide levels in the atmosphere began to decline as part of a natural cycle related to the end of the last Ice Age. This reflected a natural pattern that has been seen after previous ice ages.
This decline continued until around 8000 years ago, when the natural trend of declining carbon dioxide turned around, and greenhouse gases began to rise. This coincides with the spread of civilization across more territory in China, India, North Africa, the Middle East, and certain other regions.
Ruddiman’s data shows that deforestation over the next several thousand years released 350 Gigatonnes of carbon into the atmosphere, an amount nearly equal to what has been released since the Industrial Revolution. The figure is corroborated by the research of Kaplan and his team.
Around 5000 years ago, cultures in East and Southeast Asia began to cultivate rice in paddies – irrigated fields constantly submerged in water. Like an artificial wetland, rice patties create an anaerobic environment, where bacteria metabolizing carbon-based substances (like dead plants) release methane instead of carbon dioxide and the byproduct of their consumption. Ruddiman points to a spike in atmospheric methane preserved in ice cores around 5000 years ago as further evidence of warming due to agriculture.
Some other researchers, like R. Max Holmes from the Woods Hole Research Institute and Andrew Bunn, a climate scientist from Western Washington University, believe that evidence is simply not conclusive. Data around the length of interglacial periods and the exact details of carbon dioxide and methane trends is not detailed enough to make a firm conclusion, they assert. Regardless, it is certain that the pre-industrial impact of civilized humans on the planet was substantial.
“Our data show very substantial amounts of human impact on the environment over thousands of years,” Kaplan said. “That impact really needs to be taken into account when we think about the carbon cycle and greenhouse gases.”
Restoring Grasslands: a strategy for survival
If the destruction of grasslands and forests signals the beginning of the end for the planet’s climate, some believe that the restoration of these natural communities could mean salvation.
Beyond their beauty and inherent worth, intact grasslands supply a great deal to humankind. Many pastoral cultures subsist entirely on the animal protein that is so abundant in healthy grasslands. In North America, the rangelands that once sustained more than 60 million Bison (and at least as many pronghorn antelope, along with large populations of elk, bear, deer, and many others) now support fewer than 45 million cattle – animals ill-adapted to the ecosystem, who damage their surroundings instead of contributing to them.
Healthy populations of herbivores also contribute to carbon sequestration in grassland soils by increasing nutrient recycling, a powerful effect that allows these natural communities to regulate world climate. They also encourage root growth, which sequesters more carbon in the soil.
Just as herbivores cannot survive without grass, grass cannot thrive without herbivores.
Grasslands are so potent in their ability to pull carbon dioxide out of the atmosphere that some believe restoring natural grasslands could be one of the most effective tools in the fight against runaway global warming.
“Grass is so good at building [carbon rich] soil that repairing 75 percent of the planet’s rangelands would bring atmospheric CO2 to under 330 ppm in 15 years or less,” Lierre Keith writes.
The implications of this are immense. It means, quite simply, that one of the best ways to reduce greenhouse gases in the atmosphere is to move away from agriculture, which is based upon the destruction of forests and grasslands, and towards other means of subsistence. It means moving away from a way of life 10,000 years old. It means rethinking the entire structure of our food system – in some ways, the entire structure of our culture.
Some ambitious, visionary individuals are working in parallel with this strategy, racing against time to restore grasslands and to stabilize Earth’s climate.
In Russia, in the remote northeastern Siberian state of Yakutia, a scientist named Sergei Zimov has an ambitious plan to recreate a vast grassland – a landscape upon whom millions of herbivores such as mammoths, wild horses, reindeer, bison, and musk oxen fed and roamed until the end of the last ice age.
“In future, to preserve the permafrost, we only need to bring herbivores,” says Zimov. “Why is this useful? For one, the possibility to reconstruct a beautiful [grassland] ecosystem. It is important for climate stability. If the permafrost melts, a lot of greenhouse gases will be emitted from these soils.”
Zimov’s project is nicknamed “Pleistocene Park,” and stretches across a vast region of shrubs and mosses, low productivity communities called ‘Taiga’. But until 12,000 years ago, this landscape was highly productive pastures for a span of 35,000 years, hosting vast herds of grazers and their predators.
“Most small bones don’t survive because of the permafrost,” says Sergei Zimov. “[But] the density of skeletons in this sediment, here and all across these lowlands: 1,000 skeletons of mammoth, 20,000 skeletons of bison, 30,000 skeletons of horses, and about 85,000 skeletons of reindeer, 200 skeletons of musk-ox, and also tigers [per square kilometer].”
These herds of grazers not only supported predators, but also preserved the permafrost beneath their feet, soils that now contain 5 times as much carbon as all the rainforests of Earth. According to Zimov, the winter foraging behavior of these herbivores was the mechanism of preservation.
“In winter, everything is covered in snow,” Zimov says. “If there are 30 horses per square kilometer, they will trample the snow, which is a very good thermal insulator. If they trample in the snow, the permafrost will be much colder in wintertime. The introduction of herbivores can reduce the temperatures in the permafrost and slow down the thawing.”
In the Great Plains of the United States and Canada, a similar plan to restore the landscape and rewild the countryside has emerged. The brainchild of Deborah and Frank Popper, the plan calls for the gradual acquisition of rangelands and agricultural lands across the West and Midwest, with the eventual goal of creating a vast nature preserve called the Buffalo Commons, 10-20 million acres of wilderness, an area 10 times the size of the largest National Park in the United States (Wrangell-St. Elias National Park in Alaska).
In this proposed park, the Poppers envision a vast native grassland, with predators following wandering herds of American Bison and other grazers who follow the shifting grasses who follow the fickle rains. The shifting nature of the terrain in the Great Plains requires space, and this project would provide it in tracts not seen for hundreds of years.
In parts of Montana, the work has already begun. Many landowners have sold their farms to private conservation groups to fill in the gaps between isolated sections of large public lands. Many Indian tribes across the United States and Southern Canada are also working to restore Bison, who not only provide high quality, healthy, traditional food but also contribute to biodiversity and restore the health of the grasslands through behavior such a wallowing, which creates small wetlands.
Grasslands have the power to not only restore biodiversity and serve as a rich, nutrient-dense source of food, but also to stabilize global climate. The soils of the world cannot survive agricultural civilizations for much longer. If the plows continue their incessant work, this culture will eventually go the way of the Easter Islanders, the Maya, the Greeks, the Macedonians, the Harrapans, or the Roman Empire – blowing in the wind, clouding the rivers. Our air is thick with the remnants of ancient soils, getting long overdue revenge for their past mistreatment.
The land does not want fields. It wants Bison back. It wants grasslands, forests, wetlands, birds. It wants humans back, humans who know how to live in a good way, in relationship with the soil and the land and all the others. The land wants balance, and we can help. We can tend the wild and move towards other means of feeding ourselves, as our old ancestors have done for long years. It is the only strategy that takes into account the needs of the natural world, the needs for a land free of plows and tractor-combines.
In time, with luck and hard work, that ancient carbon will be pulled from the atmosphere – slowly at first, but then with gathering speed. The metrics of success are clear: a calmed climate, rivers running free, biodiversity rebounding. The task of achieving that success is a great challenge, but guided by those who believe in restoring the soil, we can undo 8,000 years of mistakes, and finally begin to live again as a species like any other, nestled in our home, at peace and in balance, freed at last from the burdens of our ancestors’ mistakes.
Bibliography
Climate meddling dates back 8,000 years. By Alexandra Witze. April 23rd, 2011. Science News. http://www.sciencenews.org/view/generic/id/71932/title/Climate_meddling_dates_back_8%2C000_years#video
U.S. Environmental Protection Agency. Global Emissions. Accessed June 23rd, 2012. http://epa.gov/climatechange/ghgemissions/global.html
The prehistoric and preindustrial deforestation of Europe. By Kaplan et al. Avre Group, Ecole Polytechnique Federale de Lausanne. Quaternary Science Reviews 28 (2009) 3016-3034.
‘Land Use as Climate Change Mitigation.’ Stone, Brian Jr. Environmental Science and Technology 43, 9052-9056. 11/2009.
‘Functional Aspects of Soil Animal Diversity in Agricultural Grasslands’ by Bardgett et al. Applied Soil Ecology, 10 (1998) 263-276.
Zimov, Sergei. Personal Interviews, June/July 2010.
by Deep Green Resistance News Service | Nov 8, 2013 | Toxification
By Soumya Karlamangla / Los Angeles Times
A 90-car train derailed and exploded in rural Alabama early Friday morning, spilling its crude oil cargo into the surrounding wetlands and igniting a fire so intense that officials said it will take 24 hours to burn out. No one was injured.
The train was crossing a timber trestle above a wetland near Aliceville late Thursday night when 20 railcars and two of three locomotives derailed. Earlier reports said fewer cars had derailed.
On Friday morning, about 10 train cars were burning, according to a statement from train owner Genesee & Wyoming.
Emergency responders decided to let the cars burn out. Though the bridge is also burning, the fire is contained, officials said.
Scott Hughes, spokesperson for the Alabama Department of Environmental Management, told the Los Angeles Times that the oil has been spilled into the wetlands area.
“Typically wetlands are a sanctuary for a variety of different types of aquatic species, so once we’re able to get in and assess environmental impacts, we’ll certainly look at any impacts to aquatic organisms and other types of wildlife,” Hughes told the Los Angeles Times.
There are extensive wetlands near Aliceville, according to the state’s Forestry Commission website.
Hughes said that it’s difficult to determine how much oil has been spilled, because responders can’t get close to the fire. Hughes said his agency checked the drinking water wells in the area, and said there will be no effect on the water.
“The area’s pretty rural, there’s not a whole lot around,” Alabama Emergency Management spokesperson Yasamie August told the Los Angeles Times.
One family was evacuated, but has already been returned home, she said
The Environmental Protection Agency has one person on scene who is overseeing the clean-up and monitoring of air quality to assess the impact of the crude oil spill, regional Environmental Protection Agency spokesperson James Pinkney told The Times.
The train was en route from Amory, Miss., to Walnut Hill, Fla., according to the Genesee statement.
The use of rail to move oil amid rapidly expanding U.S. production is coming under growing regulatory scrutiny after the horrific explosion of an oil train in Canada’s Lac-Megantic, Quebec, killed at least 42 residents in July, The Times reported in September. A train with 72 tank cars hauling crude oil from North Dakota’s Bakken Shale fields rolled downhill into the city and ignited an inferno that destroyed half of downtown.
Don Hartley, a regional coordinator for the Alabama Emergency Management Agency, told The Times that the train in Alabama likely originated in North Dakota.
The Times also reported that railroads are carrying 25 times more crude oil than they were five years ago. And though railroads have improved their safety in recent years, moving oil on tank cars is only about half as safe as in pipelines.
From Los Angeles Times: http://www.latimes.com/nation/nationnow/la-na-nn-alabama-train-explosion-20131108,0,1137139.story
by Deep Green Resistance News Service | Nov 7, 2013 | Lobbying, Mining & Drilling
By Grand Canyon Trust
For the second time in as many decades, operations to open the Canyon uranium mine six miles south of Grand Canyon National Park have been suspended. The Havasu Tribe, which had previously challenged the mine, and conservation groups have been working to stop this mine because of potential harm to waters and wildlife of Grand Canyon, as well as cultural resources.
Pursuant to an agreement with the Havasupai Tribe and conservation groups, and citing “business reasons,” Energy Fuels Resources, Inc. decided to place the mine in non-operational, stand by status on Tuesday. Uranium prices have dropped to a five-year low during the last three months. The mine was previously placed on stand by in 1992, after uranium prices plunged to record lows. The company resumed shaft-sinking operations in early 2013; the current cessation will last at least until a pending district court ruling or Dec. 31, 2014.
“The Canyon Mine threatens irreversible damage to the Havasupai people and Grand Canyon’s water, wildlife, and tourism economy, so this closure is very good news,” said Roger Clark with the Grand Canyon Trust. “The closure is temporary. Under current policy, federal agencies will permit this mine— like other “zombie mines” across the region— to reopen next year, or 10 or 20 years from now without any new environmental analysis or reclamation. That needs to change.”
The Havasupai Tribe and conservation groups sued the U.S. Forest Service in March over its 2012 decision to allow the controversial mine to open without adequate tribal consultation and without updating a 1986 federal environmental review. The mine is within the Red Butte Traditional Cultural Property, which the Forest Service designated in 2010 for its religious and cultural importance to tribes, especially Havasupai. It threatens cultural values, wildlife, and water, including aquifers feeding Grand Canyon’s springs. The lawsuit charges the Forest Service with violating the National Historic Preservation Act for not consulting with the Havasupai Tribe to determine whether impacts of the mine on Red Butte could be avoided prior to approving mining. It also alleges violations of the National Environmental Policy Act for failing to analyze new circumstances and science since the mine’s outdated 1986 environmental impact statement. Those include the designation of the Red Butte Traditional Cultural Property, reintroduction of the endangered California condor, and new science showing the potential for uranium mining to contaminate deep aquifers and Grand Canyon seeps and springs.
“It’s been clear for years that the public doesn’t want uranium mining around the Grand Canyon. Now that this mine has been put on hold, the Forest Service has yet another opportunity to do the right thing: protect people, wildlife and this incredible landscape from industrial-scale mining and all the pollution and destruction that come with it,” said Robin Silver of the Center for Biological Diversity.
The mine falls within the million-acre “mineral withdrawal” zone approved by the Obama administration in January 2012 to protect Grand Canyon’s watershed from new uranium mining impacts. The withdrawal prohibits new mining claims and mine development on old claims lacking “valid existing rights” to mine. In April 2012 the Forest Service made a determination that there were valid existing rights for the Canyon mine, and in June it issued a report justifying its decision to allow the mine to open without updating the 27-year-old environmental review.
“It is time to halt this mine — permanently,” said Sandy Bahr, director of the Sierra Club’s Grand Canyon Chapter. “It was a bad idea 27 years ago when the now-dated environmental impact statement was issued, it is a bad idea today, and it will certainly be a bad idea tomorrow. Now we know even more about how much Canyon Mine threatens the water, wildlife and cultural resources of Grand Canyon.”
Plaintiffs on the litigation include Havasupai Tribe, Grand Canyon Trust, the Center for Biological Diversity and Sierra Club.
Background
The Canyon Mine is located on the Kaibab National Forest, six miles south of Grand Canyon National Park. The mine’s original approval in 1986 was the subject of protests and lawsuits by the Havasupai Tribe and others objecting to potential uranium mining impacts on regional groundwater, springs, creeks, ecosystems and cultural values associated with Red Butte.
Aboveground infrastructure was built in the early 1990s, but a crash in uranium prices caused the mine’s closure in 1992 before the shaft or ore bodies could be excavated. Pre-mining exploratory drilling drained groundwater beneath the mine site, eliminating an estimated 1.3 million gallons per year from the region’s springs that are fed by groundwater. A 2010 U.S. Geological Survey report noted that past samples of groundwater beneath the mine exhibited dissolved uranium concentrations in excess of EPA drinking water standards. Groundwater threatened by the mine feeds municipal wells and seeps and springs in Grand Canyon, including Havasu Springs and Havasu Creek. Aquifer Protection Permits issued for the mine by Arizona Department of Environmental Quality do not require monitoring of deep aquifers and do not include remediation plans or bonding to correct deep aquifer contamination.
Originally owned by Energy Fuels Nuclear, the mine was purchased by Denison Mines in 1997 and by Energy Fuels Resources Inc., which currently owns the mine, in 2012. Energy Fuels has been operating the mine since April 2013, sinking the shaft and preparing the facility for uranium ore excavation.
