Ocean acidification poses dire threat to coral reefs

Ocean acidification poses dire threat to coral reefs

By the Associated Press

Oceans’ rising acid levels have emerged as one of the biggest threats to coral reefs, acting as the “osteoporosis of the sea” and threatening everything from food security to tourism to livelihoods, the head of a US scientific agency said Monday.

The speed by which the oceans’ acid levels has risen caught scientists off-guard, with the problem now considered to be climate change’s “equally evil twin,” National Oceanic and Atmospheric Administration (NOAA) chief Jane Lubchenco told The Associated Press.

“We’ve got sort of the perfect storm of stressors from multiple places really hammering reefs around the world,” said Lubchenco, who was in Australia to speak at the International Coral Reef Symposium in the northeast city of Cairns, near the Great Barrier Reef. “It’s a very serious situation.”

Oceans absorb excess carbon dioxide in the atmosphere, leading to an increase in acidity. Scientists are worried about how that increase will affect sea life, particularly reefs, as higher acid levels make it tough for coral skeletons to form. Lubchenco likened ocean acidification to osteoporosis a bone-thinning disease because researchers are concerned it will lead to the deterioration of reefs.

Scientists initially assumed that the carbon dioxide absorbed by the water would be sufficiently diluted as the oceans mixed shallow and deeper waters. But most of the carbon dioxide and the subsequent chemical changes are being concentrated in surface waters, Lubchenco said.

“And those surface waters are changing much more rapidly than initial calculations have suggested,” she said. “It’s yet another reason to be very seriously concerned about the amount of carbon dioxide that is in the atmosphere now and the additional amount we continue to put out.”

Derrick Jensen: Self-Evident Truths

Derrick Jensen: Self-Evident Truths

By Derrick Jensen, for Orion Magazine

There isn’t a chance in hell that something like the original Wilderness Act could be passed today. Environmentalists today are too much on the defensive. Sure, there have been green platforms and policy papers, but nothing I’ve read matches the urgency of this moment. So I decided to draft a declaration. It goes like this:

We, the citizens of the United States of America, hold these truths to be self-evident: that a rapid decline in living conditions is taking place all around us; that compromise is no longer an adequate way forward (and perhaps never was); that more drastic measures must be taken immediately in order to preserve a livable planet. From these beliefs springs the following list of demands:

We demand that the United States Constitution be rewritten to explicitly prohibit the privatization of profits and the externalization of costs by the wealthy, and to immediately grant both human and nonhuman communities full legal and moral rights. Corporations should no longer be considered persons under the law. Limited liability corporations must be immediately stripped of their limited liability protection. Those whose economic activities cause great harm—including great harm to the real, physical world—should be punished. Environmental Crimes Tribunals must be immediately put in place to try those who have significantly harmed the real, physical world. These tribunals should have the force of law and should be expected to impose punishment commensurate with the harm caused to the public and to the planet.

We demand the immediate, explicit, and legally binding recognition that perpetual growth is incompatible with life on a finite planet. Economic growth must stop, and economies must begin to contract. We demand acknowledgment that if we don’t begin this contraction voluntarily, it will take place against our will, and will cause untold misery.

We demand that overconsumption and overpopulation be addressed through bold and serious measures, but not by approaches that are racist, colonialist, or misogynist. Right now, more than 50 percent of the children who are born into this world are unwanted. We demand that all children be wanted. The single most effective strategy for making certain that all children are wanted is the liberation of women. Therefore we demand that women be given absolute economic, sexual, and reproductive freedom, and that all forms of reproductive control become freely available to all.

There is consensus among the scientific community that in order to prevent catastrophic climate change beyond what the industrial economy has already set in motion, net carbon emissions must be reduced by 80 percent as soon as possible. Because we wish to continue to live on a habitable planet, we demand a carbon reduction of 20 percent of current emissions per year over the next four years.

Dwayne Andreas, former CEO of Archer Daniels Midland, has said, “There isn’t one grain of anything in the world that is sold in a free market. Not one! The only place you see a free market is in the speeches of politicians.” He’s right. Capitalism is based almost entirely on subsidies. For example, commercial fishing fleets worldwide receive more in subsidies than the entire value of their catch. Timber corporations, oil corporations, banks—all would collapse immediately without massive government subsidies and bailouts. Therefore, we demand that the United States government stop subsidizing environmentally and socially destructive activities, and shift those same subsidies into activities that restore biotic communities and that promote local self-sufficiency and vibrant local economies.

We demand an immediate and permanent halt to all extractive and destructive activities: fracking, mountaintop removal, tar sands production, nuclear power, and offshore drilling chief among them. The list of activities to be halted must also include the manufacture of photovoltaic panels, windmills, hybrid cars, and so on. We must find nondestructive ways of becoming a sustainable society.

We demand an immediate end to monocrop agriculture, one of the most destructive activities humans have ever perpetrated. All remaining native forests must be immediately and completely protected. We demand an end to clearcutting, “leave tree,” “seed tree,” “shelter tree,” and all other “even-aged management” techniques, no matter what they are called, and no matter what rationales are put forward by the timber industry and the government to justify them. Likewise, we demand that all remaining prairies and wetlands be permanently protected.

Further, we demand that all damaged lands be restored, from the redwood forest to the Gulf Stream waters. Because soil is the basis of terrestrial life, no activities should be allowed that destroy topsoil. All properties over sixty acres must have soil surveys performed every ten years, and if they have suffered any decrease in health or depth of topsoil, the lands shall be confiscated and ownership transferred to those who will build up soil.

We demand that no activities that draw down aquifers be allowed, and that all polluted or compromised rivers and wetlands be restored. There are more than 2 million dams in the United States, more than 60,000 dams over thirteen feet tall and more than 70,000 dams over six and a half feet tall. If we removed one of these 70,000 dams each day, it would take 200 years to get rid of them all. Salmon don’t have that much time. Sturgeon don’t have that much time. Therefore, we demand that no more dams be built, and we demand the removal of five dams per day over the next forty years, beginning one year from today.

We demand that the United States make an annual survey of all endangered species to ascertain if they are increasing in number and range, and if they are not, we demand that steps be taken to make sure that they do. The U.S. government must be charged with the task of doing whatever is necessary to make sure that there are more migratory songbirds every year than the year before, that there are more native fish every year than the year before, more native reptiles and amphibians.

The United States must immediately withdraw from NAFTA, DR-CAFTA, and other so-called free trade agreements, because these agreements cause immeasurable and irreparable harm to working people, local economies. Likewise, we demand that the United States remove all support for the World Bank and the International Monetary Fund, because these organizations promote and support vast infrastructure projects such as highways, dams, thermal power projects, and mines that disrupt or destroy entire biomes and dispossess and immiserate hundreds of thousands of people (in India alone, 50 million people have been displaced by large “development” projects).

From this day forward, the only conditions under which the United States of America should go to war is by a direct vote of more than 50 percent of U.S. citizens. Furthermore, we demand immediate closure of all U.S. military bases on foreign soil. All U.S. military personnel should be brought home within two years. The U.S. military budget must be reduced by 20 percent per year, until it reaches 20 percent of its current size. This will provide the “peace dividend” politicians promised us back when the Soviet Union collapsed, will balance the U.S. budget, and will more than pay for all necessary domestic programs, starting with biome repair and including food, shelter, and medical care for all.

In addition to the aforementioned, we demand that the U.S. government itself undergo a significant transformation in recognition of the fact that it can only be of, by, and for the people if it is concurrently of, by, and for the earth. And no, the fact that the animals and plants and natural communities don’t speak English is not a valid excuse for failing to provide for their well-being.

Once these demands have been met, we will come up with more, and then more, until we are living in a sane, just, and sustainable culture. We believe that such a culture is our birthright, both as human beings with inalienable rights and as animals who love our home. We have not forgotten that the Declaration of Independence states that when a government becomes destructive of our rights to life, liberty, and the pursuit of happiness, then it is the right of the people to alter or abolish it.

From Orion Magazine: http://www.orionmagazine.org/index.php/articles/article/6916

Cambodian villagers demonstrate against Mekong River dam project

By Prak Chan Thul / Reuters

Cambodian villagers demonstrated on Friday against a controversial Lao hydropower dam that activists say is being built in defiance of an agreement to assess its potentially damaging impact on millions of people first.

About 200 villagers whose livelihoods depend on the Mekong River urged a halt to the Thai-led construction of the $3.5 billion Xayaburi dam, which has angered Cambodia’s government and triggered a rare rebuke by Laos’s biggest ally, Vietnam.

“This dam won’t just affect the people in our country but will also affect many parts of Laos,” said Buddhist monk So Pra, organizer of the protest in Kompong Cham province, 124 km (77 miles) from the Cambodian capital, Phnom Penh.

The Xayaburi dam is one of dozens planned as part of Laos’s aggressive push to boost its tiny $7.5 billion economy and become the “battery of Southeast Asia” by exporting the vast majority of its power.

Foreign governments are concerned Laos is prioritizing its growth ambitions over ecological and environmental protection.

Under pressure from neighbors that felt its environmental impact study was inadequate, Laos agreed in December to suspend the project pending an assessment by foreign experts. Four countries share the lower stretches of the 4,900 km (3,044 mile) Mekong — Laos, Thailand, Vietnam and Cambodia.

Environmental group International Rivers released a report this week saying it had witnessed Ch Karnchang Pcl, Thailand’s second-biggest construction firm, resettling villagers, beefing up labor, building a large retaining wall and undertaking dredging to deepen and widen the riverbed.

“So far, Ch Karnchang claims that they are only going forward with ‘preliminary construction’ on the project,” said Kirk Herbertson, Mekong Campaigner for International Rivers.

“Ripping up the riverbed and resettling entire villages cannot be considered a preliminary activity.”

Te Navuth, secretary general of the Cambodia National Mekong River Commission, said Laos had violated a 1995 agreement requiring prior consultation before starting any development on the Mekong.

“Laos always said that it’s just preparatory work,” he said, adding Cambodia and Vietnam would jointly demand a halt.

Thailand could also be affected but, although small protests have taken place there, the government has been reluctant to oppose the project.

Ch Karnchang has a 57 percent share in the Xayaburi, which Thai banks are helping to finance. State-run Electricity Generating Authority of Thailand (EGAT) will buy electricity generated by the plant.

From Reuters: http://in.reuters.com/article/2012/06/29/us-cambodia-laos-idINBRE85S0FX20120629

Palm oil industry burning Indonesian orangutans into extinction to build plantations

By Oliver Milman / The Guardian

The world’s densest population of orangutans is set to be “extinguished” by a massive new wave of fires that is clearing large tracts of a peat swamp forest in the Indonesian island of Sumatra, conservationists have warned.

Environmentalists claim that satellite images show a huge surge in forest blazes across the Tripa peat swamp in order to create palm oil plantations, including areas that have not been permitted for clearing.

Tripa is home to a tight-knit enclave of around 200 critically endangered orangutans. However, this number has plummeted from an estimated population of 3,000.

Just 7,000 orangutans remain in Sumatra, with rampant forest clearing for palm oil cultivation blamed for their decline.

Ian Singleton, head of the Sumatran Orangutan Conservation Programme (SOCP), said that the Tripa orangutans are being “extinguished.”

“The situation is indeed extremely dire,” he said. “Every time I have visited Tripa in the last 12 months I have found several orangutans hanging on for their very survival, right at the forest edge.”

“When you see the scale and speed of the current wave of destruction and the condition of the remaining forests, there can be no doubt whatsoever that many have already died in Tripa due to the fires themselves, or due to starvation as a result of the loss of their habitat and food resources.”

Felling trees from Tripa’s carbon-rich peat also triggers the release of large amounts of CO2 into the atmosphere. Indonesia has been named as the third highest emitter of CO2 emissions in the world when deforestation is a factor, although the country disputes this.

Environmentalists have lodged a lawsuit against PT Kallista Alam, one of the five palm oil firms operating in Tripa, and Irwandi Yusuf, the former governor of Aceh, over the approval of a permit for the 1,600-hectare (3,950-acre) palm oil plantation.

Irawardi, previously styled as a “green” governor, says he granted the permit due to delays in the UN’s Redd+ (Reducing Emissions from Deforestation and Forest Degradation) programme, which has seen Norway pledge $US1bn to Indonesia to reduce deforestation.

“The international community think our forest is a free toilet for their carbon,” Irawardi said in April. “Every day they are saying they want clean air and to protect forests … but they want to inhale our clean air without paying anything.”

SOCP and lawyers representing Tripa’s local communities have called upon the Indonesian president, Susilo Bambang Yudhoyono, to bypass an ongoing government investigation into the forest clearing and immediately halt the razing of the area.

“This whole thing makes absolutely no sense at all, not environmentally, nor even economically,” said Singleton.

From The Guardian: http://www.guardian.co.uk/environment/2012/jun/29/fires-indonesia-orangutan

Indigenous people take control of Belo Monte coffer dam site

Indigenous people take control of Belo Monte coffer dam site

By Amazon Watch

Indigenous peoples affected by the controversial Belo Monte dam complex now under construction along the Xingu River in the Brazilian Amazon have occupied a coffer dam that cuts across channels of the river since last Thursday June 21. Warriors from the Xikrin and Juruna indigenous groups arrived from the Bacajá River and Big Bend of the Xingu River in order to occupy one of Belo Monte’s main dams and work camps, expressing dissatisfaction with the blatant disregard of their rights and the dam building consortium’s non-compliance with socio-environmental mitigation measures. The groups independently organized the action and are demanding the presence of the Norte Energia (NESA) dam-building consortium and the Brazilian government.

The occupiers come from a region of the Xingu downstream of Belo Monte that will suffer from a permanent drought provoked by the diversion of 80% of the river’s flow into an artificial dam to feed the dam’s powerhouse.

The indigenous peoples are outraged that promised actions by government-led Norte Energia – many of which constitute legal obligations of environmental licenses issued for the Belo Monte complex – have not been implemented. According to protest leaders, a program designed to mitigate and compensate impacts of the mega-dam project on indigenous peoples and their territories known as the PBA (Plano Básico Ambiental) has not been presented in local villages as promised.

The protestors also claim that a promised system to ensure small boat navigation in the vicinity of the coffer dams has not been implemented by NESA leaving them isolated from Altamira, a market for goods and the main source of healthcare and other essential services. The interruption of boat transportation along the Xingu is expected to force indigenous peoples to open up access roads to their villages, provoking further pressures from illegal loggers, land speculators, cattle ranchers and squatters.

According to the Xicrin and other indigenous leaders, the coffer dams at Pimental have already compromised water quality downriver on the Xingu due to siltation and stagnation, making it undrinkable and unsuitable for bathing. Norte Energia promised to install wells and potable water distribution systems in indigenous villages, but no such works have been carried out. The protestors at Pimental also point to the lack of legal recognition and demarcation of several indigenous territories in the area of influence of Belo Monte, such as Terra Wangã, Paquiçamba, Juruena do km 17 and Cachoeira Seca, all legal prerequisites for dam construction.

The protestors camping out at the Pimental coffer dam on the Xingu are calling for immediate suspension of the installation license for Belo Monte.

Text written by men assembled in the Bacajá village in the Trincheira-Bacajá indigenous territory declared:

Stop this and let our river run. Let our boats navigate the river. Stop this and let the river run so that our children can drink and bathe in its waters. If they build this dam the river will become ruined, its waters will no longer be good. The river will be dry; how will we be able to navigate and travel?

Let the river run so that our people can continue to hunt in the jungle so that our children and grandchildren can eat, so that the river runs freely and we can fish in the early morning to nourish our children.

Our studies were poorly completed and now you speak of a dam. We do not like this. The Basic Environmental Plan [to mitigate social and environmental impacts] has not even begun to be implemented and they are already building the dam. We do not like this. We want this Belo Monte dam to stop once and for all! (Translation by anthropologist Clarice Cohn.)

From Amazon Watch: http://amazonwatch.org/news/2012/0623-amazonian-indigenous-peoples-occupy-belo-monte-dam-site

Study finds wetlands being destroyed at twice previous rate due to BP oil spill

By Claudia Adrien / University of Florida

The BP Deepwater Horizon oil spill temporarily worsened existing manmade problems in Louisiana’s salt marshes such as erosion, but there may be cause for optimism, according to a new study.

A study appearing online Monday in the Proceedings of the National Academy of Sciences found the 2010 spill killed off salt marsh plants 15 to 30 feet from the shoreline and this plant die off resulted in a more-than-doubled rate of erosion along the marsh edge and subsequent permanent marsh habitat loss. Vegetation farther from shore was relatively untouched by the incoming oil.

“Louisiana is already losing about a football field worth of wetlands every hour, and that was before the spill,” said Brian Silliman, a University of Florida biologist and lead author of the study. “When grasses die from heavy oiling, their roots, that hold the marsh sediment together, also often die. By killing grasses on the marsh shoreline, the spill pushed erosion rates on the marsh edge to more than double what they were before. Because Louisiana was already experiencing significant erosive marsh loss due to the channelization of the Mississippi, this is a big example of how multiple human stressors can have additive effects.”

Marshes are the life’s blood of coastal Louisiana because they act as critical nurseries for the shrimp, oysters and fish produced in these waters while helping to sequester significant amounts of carbon. They also protect coastlines from flooding and guard estuarine waters from nutrient pollution.

But the marshes have been suffering for decades as a result of the channelization of the Mississippi River, which has starved them from needed sediments to deter erosion.

Then came the oil spill.

Researchers observed minimal oil on the surfaces of grasses located more than 45 feet from the shoreline, indicating that significant amounts of oil did not move into interior marshes.

Instead, the researchers found that the tall grasses along the marsh edge acted as wall-like trap to incoming oil slicks, concentrating oil on the marsh edge. This concentration of oil on the shoreline protected interior marshes from oiling but worsened already extreme erosion on the shoreline. As oiled plants died, their roots that hold tight to the sediment perished as well. Already eroding sediment was now exposed to wave action without the effect of the gripping plant roots.

The result: elevated erosion rates for 1.5 years that averaged more than 10 feet of shoreline loss per year — double the natural rate for this area.

The encouraging results, Silliman said, included significant declines in the oil concentration on the marsh surface over 1.5 years and that unaffected, healthy marsh plants in the marsh interior quickly grew back into marsh die-off areas that had not yet been lost due to heightened erosion.

When the new marsh plant growth grew into the erosive edge of the marsh, Silliman said, the recolonization of the area by the gripping plant roots shut down the oil-elevated erosion rates and returned them to those seen at marsh sites where oil coverage did not occur.

The researchers also found that polyaromatic hydrocarbons, or PAHs, a carcinogenic byproduct of oil, was 100 percent greater at the Barateria Bay testing site than in reference marshes. This finding provides chemical evidence to support their visual observations that marshes in the affected areas were laden with oil while those in reference areas did not receive significant oiling.

By adding Biochar, a charcoal-based substance, to marshlands, Silliman’s team is also using new bioremediation tactics to try to break down PAHs into organic material. If this method is successful, he said, it could be used to supplement naturally occurring microbes in the marsh mud that already oxidize the oil carcinogen. The team is soon to publish those findings.

“This is a new idea applied toward cleaning up PAHs,” said UF chemistry professor Andrew R. Zimmerman, a co-author on the paper. “It’s possible there’s a bunch lurking at the bottom of the bay.”

From University of Florida News