Category Archives: climate change

Rolling Stone Magazine: Obama and Climate Change: The Real Story by Bill McKibben

http://www.rollingstone.com/politics/news/obama-and-climate-change-the-real-story-20131217

The president has said the right things about climate change – and has taken some positive steps. But we’re drilling for more oil and digging up more carbon than ever

stone
Illustration by Victor Juhasz
By Bill McKibben
December 17, 2013 9:00 AM ET

Two years ago, on a gorgeous November day, 12,000 activists surrounded the White House to protest the proposed Keystone XL pipeline. Signs we carried featured quotes from Barack Obama in 2008: “Time to end the tyranny of oil”; “In my administration, the rise of the oceans will begin to slow.”

Global Warming’s Terrifying New Math

Our hope was that we could inspire him to keep those promises. Even then, there were plenty of cynics who said Obama and his insiders were too closely tied to the fossil-fuel industry to take climate change seriously. But in the two years since, it’s looked more and more like they were right – that in our hope for action we were willing ourselves to overlook the black-and-white proof of how he really feels.

If you want to understand how people will remember the Obama climate legacy, a few facts tell the tale: By the time Obama leaves office, the U.S. will pass Saudi Arabia as the planet’s biggest oil producer and Russia as the world’s biggest producer of oil and gas combined. In the same years, even as we’ve begun to burn less coal at home, our coal exports have climbed to record highs. We are, despite slight declines in our domestic emissions, a global-warming machine: At the moment when physics tell us we should be jamming on the carbon brakes, America is revving the engine.

Greenland Melting: Climate Change’s Disasterous Effects

You could argue that private industry, not the White House, has driven that boom, and in part you’d be right. But that’s not what Obama himself would say. Here’s Obama speaking in Cushing, Oklahoma, last year, in a speech that historians will quote many generations hence. It is to energy what Mitt Romney’s secretly taped talk about the 47 percent was to inequality. Except that Obama was out in public, boasting for all the world to hear:

“Over the last three years, I’ve directed my administration to open up millions of acres for gas and oil exploration across 23 different states. We’re opening up more than 75 percent of our potential oil resources offshore. We’ve quad­rupled the number of operating rigs to a record high. We’ve added enough new oil and gas pipeline to encircle the Earth, and then some. . . . In fact, the problem . . . is that we’re actually producing so much oil and gas . . . that we don’t have enough pipeline capacity to transport all of it where it needs to go.”

Actually, of course, “the problem” is that climate change is spiraling out of control. Under Obama we’ve had the warmest year in American history – 2012 – featuring a summer so hot that corn couldn’t grow across much of the richest farmland on the planet. We’ve seen the lowest barometric pressure ever recorded north of Cape Hatteras, North Carolina, and the largest wind field ever measured, both from Hurricane Sandy. We’ve watched the Arctic melt, losing three quarters of its summer sea ice. We’ve seen some of the largest fires ever recorded in the mountains of California, Colorado and New Mexico. And not just here, of course – his term has seen unprecedented drought and flood around the world. The typhoon that just hit the Philippines, according to some meteorologists, had higher wind speeds at landfall than any we’ve ever seen. When the world looks back at the Obama years half a century from now, one doubts they’ll remember the health care website; one imagines they’ll study how the most powerful government on Earth reacted to the sudden, clear onset of climate change.

The Fossil Fuel Resistance

And what they’ll see is a president who got some stuff done, emphasis on “some.” In his first term, Obama used the stimulus money to promote green technology, and he won agreement from Detroit for higher automobile mileage standards; in his second term, he’s fighting for EPA regulations on new coal-fired power plants. These steps are important – and they also illustrate the kind of fights the Obama administration has been willing to take on: ones where the other side is weak. The increased mileage standards came at a moment when D.C. owned Detroit – they were essentially a condition of the auto bailouts. And the battle against new coal-fired power plants was really fought and won by environmentalists. Over the past few years, the Sierra Club and a passel of local groups managed to beat back plans for more than 100 new power plants. The new EPA rules – an architecture designed in part by the Natural Resources Defense Council – will ratify the rout and drive a stake through the heart of new coal. But it’s also a mopping-up action.

Obama loyalists argue that these are as much as you could expect from a president saddled with the worst Congress in living memory. But that didn’t mean that the president had to make the problem worse, which he’s done with stunning regularity. Consider:

• Just days before the BP explosion, the White House opened much of the offshore U.S. to new oil drilling. (“Oil rigs today generally don’t cause spills,” he said by way of explanation. “They are technologically very advanced.”)

• In 2012, with the greatest Arctic melt on record under way, his administration gave Shell Oil the green light to drill in Alaska’s Beaufort Sea. (“Our pioneering spirit is naturally drawn to this region, for the economic opportunities it presents,” the president said.)

• This past August, as the largest forest fire in the history of the Sierra Nevadas was burning in Yosemite National Park, where John Muir invented modern environmentalism, the Bureau of Land Management decided to auction 316 million tons of taxpayer-owned coal in Wyoming’s Powder River basin. According to the Center for American Progress, the emissions from that sale will equal the carbon produced from 109 million cars.

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Even on questions you’d think would be open-and-shut, the administration has waffled. In November, for instance, the EPA allowed Kentucky to weaken a crucial regulation, making it easier for mountaintop-removal coal mining to continue. As the Sierra Club’s Bruce Nilles said, “It’s dismaying that the Obama administration approved something even worse than what the Bush administration proposed.”

All these steps are particularly toxic because we’ve learned something else about global warming during the Obama years: Most of the coal and gas and oil that’s underground has to stay there if we’re going to slow climate change.

Though the Copenhagen climate conference in 2009 was unquestionably the great foreign-policy failure of Obama’s first term, producing no targets or timetables or deals, the world’s leaders all signed a letter pledging that they would keep the earth’s temperature from rising more than two degrees Celsius. This is not an ambitious goal (the one degree we’ve raised the temperature already has melted the Arctic, so we’re fools to find out what two will do), but at least it is something solid to which Obama and others are committed. To reach that two-degree goal, say organizations such as the Carbon Tracker Initiative, the World Bank, the International Energy Agency, the Intergovernmental Panel on Climate Change, HSBC and just about everyone else who’s looked at the question, we’d need to leave undisturbed between two-thirds and four-fifths of the planet’s reserves of coal, gas and oil.

The Powder River Basin would have been a great place to start, especially since activists, long before the administration did anything, have driven down domestic demand for coal by preventing new power plants. But as the “Truth Team” on barack obama.com puts it, “building a clean future for coal is an integral part of President Obama’s plan to develop every available source of American energy.”

And where will the coal we don’t need ourselves end up? Overseas, at record levels: the Netherlands, the U.K., China, South Korea. And when it gets there, it slows the move to cleaner forms of energy. All told, in 2012, U.S. coal exports were the equivalent of putting 55 million new cars on the road. If we don’t burn our coal and instead sell it to someone else, the planet doesn’t care; the atmosphere has no borders.

As the administration’s backers consistently point out, America has cut its own carbon emissions by 12 percent in the past five years, and we may meet our announced national goal of a 17 percent reduction by decade’s end. We’ve built lots of new solar panels and wind towers in the past five years (though way below the pace set by nations like Germany). In any event, building more renewable energy is not a useful task if you’re also digging more carbon energy – it’s like eating a pan of Weight Watchers brownies after you’ve already gobbled a quart of Ben and Jerry’s.

Let’s lay aside the fact that climate scientists have long since decided these targets are too timid and that we’d have to cut much more deeply to get ahead of global warming. All this new carbon drilling, digging and burning the White House has approved will add up to enough to negate the administration’s actual achievements: The coal from the Powder River Basin alone, as the commentator Dave Roberts pointed out in Grist, would “undo all of Obama’s other climate work.”

The perfect example of this folly is the Keystone XL pipeline stretching south from the tar sands of Canada – the one we were protesting that November day. The tar sands are absurdly dirty: To even get oil to flow out of the muck you need to heat it up with huge quantities of natural gas, making it a double-dip climate dis­aster. More important, these millions of untouched acres just beneath the Arctic Circle make up one of the biggest pools of carbon on Earth. If those fields get fully developed, as NASA’s recently retired senior climate scientist James Hansen pointed out, it will be “game over” for the climate.

Obama has all the authority he needs to block any pipelines that cross the border to the U.S. And were he to shut down Keystone XL, say analysts, it would dramatically slow tar-sands expansion plans in the region. But soon after taking office, he approved the first, small Keystone pipeline, apparently without any qualms. And no one doubts that if a major campaign hadn’t appeared, he would have approved the much larger Keystone XL without a peep – even though the oil that will flow through that one pipe will produce almost as much carbon as he was theoretically saving with his new auto-mileage law.

But the fight to shut down the pipeline sparked a grassroots movement that has changed the culture of environmentalism – but not, so far, the culture of the White House. For me, the most telling moment came a month or two ago when it emerged that the president’s former communications director, Anita Dunn, had taken a contract to flack for the pipeline.

The reason for fighting Keystone all along was not just to block further expansion of the tar sands – though that’s required, given the amount of carbon contained in that expanse of Alberta. We also hoped that doing the right thing would jump-start Washington in the direction of real climate action. Instead, the effort necessary to hold off this one pipeline has kept environmentalists distracted as Obama has opened the Arctic and sold off the Powder River Basin, as he’s fracked and drilled. It kept us quiet as both he and Mitt Romney spent the whole 2012 campaign studiously ignoring climate change.

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We’re supposed to be thrilled when Obama says something, anything, about global warming – he gave a fine speech this past June. “The question,” he told a Georgetown University audience, is “whether we will have the courage to act before it’s too late. And how we answer will have a profound impact on the world that we leave behind not just to you, but to your children and to your grandchildren. As a president, as a father and as an American, I’m here to say we need to act.” Inspiring stuff, but then in October, when activists pressed him about Keystone at a Boston gathering, he said, “We had the climate-change rally back in the summer.” Oh.

In fact, that unwillingness to talk regularly about climate change may be the greatest mistake the president has made. An account in Politico last month described his chief of staff dressing down Nobel laureate and then-Energy Secretary Steven Chu in 2009 for daring to tell an audience in Trinidad that island nations were in severe danger from rising seas. Rahm Emanuel called his deputy Jim Messina to say, “If you don’t kill Chu, I’m going to.” On the plane home, Messina told Chu, “How, exactly, was this fucking on message?” It’s rarely been on message for Obama, despite the rising damage. His government spent about as much last year responding to Sandy and to the Midwest drought as it did on education, but you wouldn’t know it from his actions.

Which doesn’t mean anyone’s given up – the president’s inaction has actually helped to spur a real movement. Some of it is aimed at Washington, and involves backing the few good things the administration has done. At the moment, for instance, most green groups are rallying support for the new EPA coal regulations.

Mostly, though, people are working around the administration, and with increasing success. Obama’s plan to auction Powder River Basin coal has so far failed – there aren’t any bidders, in large part because citizens in Washington state and Oregon have fought the proposed ports that would make it cheap to ship all that coal to Asia. Obama has backed fracking to the hilt – but in state after state, voters have begun to limit and restrict the technology. Environmentalists are also taking the fight directly to Big Oil: In October, an Oxford University study said that the year-old fight for divestment from stock in fos­sil-fuel companies is the fastest-growing corporate campaign in history.

None of that cures the sting of Obama’s policies nor takes away the need to push him hard. Should he do the right thing on Keystone XL, a decision expected sometime in the next six months, he’ll at least be able to tell other world leaders, “See, I’ve stopped a big project on climate grounds.” That could, if he used real diplomatic pressure, help restart the international talks he has let lapse. He’s got a few chances left to show some leadership.

But even on this one highly contested pipeline, he’s already given the oil industry half of what it wanted. That day in Oklahoma when he boasted about encircling the Earth with pipelines, he also announced his support for the southern leg of Keystone, from Oklahoma to the Gulf. Not just his support: He was directing his administration to “cut through the red tape, break through the bureaucratic hurdles and make this project a priority, to go ahead and get it done.”

It has: Despite brave opposition from groups like Tar Sands Blockade, Keystone South is now 95 percent complete, and the administration is in court seeking to beat back the last challenges from landowners along the way. The president went ahead and got it done. If only he’d apply that kind of muscle to stopping climate change.

This story is from the December 19th, 2013 – January 2nd, 2014 issue of Rolling Stone.
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Common Dreams: Humanity Wholly Unprepared for Abrupt Climate Impacts, Warns NAS Report

http://www.commondreams.org/headline/2013/12/04-1

Published on Wednesday, December 4, 2013 by climatechange

‘The pace of change is orders of magnitude higher than what species have experienced in the last tens of millions of years.’
– Jon Queally, staff writer

washed-out-bridge-sept-21-2009-apress

A washed out bridge is shown Monday, Sept. 21, 2009 in Douglasville, Ga. Heavy rain caused flooding in and around the Atlanta area. (AP Photo/John Bazemore)Hang on. Get Ready.

Those are at least two of the takeaways from a new report released by scientists in the National Academy of Sciences on Tuesday which says the sudden impacts of climate change this century and beyond are inevitable but warn that far too little has been done to prepare for them.

“If you think about gradual change, you can see where the road is and where you’re going. With abrupt changes and effects, the road suddenly drops out from under you.” –Prof. Tony Barnosky

The report, Abrupt Impacts of Climate Change, looks at the issue of abrupt changes in climate, weather patterns, and the impacts that can occur in a matter of years or decades, not the lengthier scenarios that climate scientists sometimes focus on. (The full report can be read online here).

“The most challenging changes are the abrupt ones,” said James White, professor of geological sciences at the University of Colorado in Boulder and chair of the report committee, at a press conference on Tuesday.

“The planet is going to be warmer than most species living on Earth today have seen it, including humans,” added Tony Barnosky, a professor in the Department of Integrative Biology at the University of California, Berkeley. “The pace of change is orders of magnitude higher than what species have experienced in the last tens of millions of years.”

As journalist Kate Sheppard reports:

Other, more gradually occurring changes can still have abrupt impacts on the ecosystem and human systems, such as the loss of fisheries or shifts in where certain crops can be cultivated. Rapid loss of ice, for example, would mean that sea levels rise at a much faster rate than the current trend, which would have a significant effect on coastal regions. A 3-foot rise in the seas is easier to prepare for if it happens on a 100-year horizon than if it happens within 30 years.

“If you think about gradual change, you can see where the road is and where you’re going,” said Barnosky. “With abrupt changes and effects, the road suddenly drops out from under you.”

These abrupt impacts, according to the report, have “the potential to severely affect the physical climate system, natural systems, or human systems.” Additionally, it is the way that these system changes are interconnected that the report focuses on.

“The reality is that the climate is changing,” said James W. C. White, a paleoclimatologist at the University of Colorado Boulder, who also contributed to the report. “It’s going to continue to happen, and it’s going to be part of everyday life for centuries to come — perhaps longer than that.”

As the New York Times reports, the report’s authors specifically warn of the “possible collapse of polar sea ice, the potential for a mass extinction of plant and animal life and the threat of immense dead zones in the ocean.”

Among its key recommendations, the scientific panel said that better early warning systems should be put in place to monitor geographic areas or essential natural systems. According to the report summary:

Because of the substantial risks to society and nature posed by abrupt changes, this report recommends the development of an Abrupt Change Early Warning System that would allow for the prediction and possible mitigation of such changes before their societal impacts are severe. Identifying key vulnerabilities can help guide efforts to increase resiliency and avoid large damages from abrupt change in the climate system, or in abrupt impacts of gradual changes in the climate system, and facilitate more informed decisions on the proper balance between mitigation and adaptation.

Although there is still much to learn about abrupt climate change and abrupt climate impacts, to willfully ignore the threat of abrupt change could lead to more costs, loss of life, suffering, and environmental degradation. Abrupt Impacts of Climate Change makes the case that the time is here to be serious about the threat of tipping points so as to better anticipate and prepare ourselves for the inevitable surprises.

And the Times adds:

The document the panel released Tuesday is the latest in a string of reports to consider whether some changes could occur so suddenly as to produce profound social or environmental stress, even collapse. Like previous reports, the new one considers many potential possibilities and dismisses most of them as unlikely — at least in the near term.

But some of the risks are real, the panel found, and in several cases have happened already.

It cited the outbreak of mountain pine beetles in the American West and in Canada. The disappearance of bitterly cold winter nights that used to kill off the beetles has allowed them to ravage tens of millions of acres of forests, damage so severe it can be seen from space.

Likewise, a drastic decline of summer sea ice in the Arctic has occurred much faster than scientists expected. The panel warned that Arctic sea ice could disappear in the summer within several decades, with severe impacts on wildlife and human communities in the region, and unknown effects on the world’s weather patterns.

Among the greatest risks in coming years, the panel said, is that climate change could greatly increase the extinction rate of plants and animals, essentially provoking the sixth mass extinction in the earth’s history. The panel said many of the world’s coral reefs, a vital source of fish that feed millions of people, already seemed fated to die within decades.

____________________________________________

Environment News Service: Law of the Sea Tribunal Orders Russia to Free Greenpeacers

http://ens-newswire.com/2013/11/22/law-of-the-sea-tribunal-orders-russia-to-free-greenpeacers/

Posted by News Editor in At Risk, Latest News, RSS on November 22, 2013 1:48 pm / no comments

HAMBURG, Germany, November 22, 2013 (ENS) – In a binding ruling, the International Tribunal for the Law of the Sea today ordered Russia to release the Greenpeace ship Arctic Sunrise and the 28 activists and two freelance journalists who were onboard during a September protest of Arctic oil exploration.

In the case of the Dutch-flagged Arctic Sunrise brought by the Kingdom of the Netherlands against the Russian Federation, the tribunal ordered that upon the posting of a bond in the amount of 3.6 million euros by the Netherlands the activists, journalists and the ship must be freed.

Twenty-nine of the so-called “Arctic 30? have this week been granted bail by Russian courts, but one man, Colin Russell of Australia was denied bail and remains in a St. Petersburg prison.

The tribunal also ordered Russia to allow the vessel and the defendants to leave the country.

Russian authorities have charged the 30 men and women with piracy and hooliganism, and some of them may be charged with obstructing a law enforcement officer.

The arrests and seizure of the ship were triggered by a September 18 Greenpeace protest against the Arctic oil and gas drilling operations of Russia’s state-controlled oil and gas company Gazprom in the Pechora Sea off Russia’s northern coast.

Several activists attempted to climb the Gazprom oil platform in protest of the world’s first commercial drilling operation in the Arctic.

Greenpeace activist Sini Saarela of Finland, one of the two who scaled the platform, said just before her arrest, “This rusty oil platform is an Arctic disaster waiting to happen. We’re hundreds of miles away from emergency response vessels or independent observers, but right next to a pristine Arctic environment that’s home to polar bears, walruses and rare seabirds.”
Saarela is now free on bail.

In response to the tribunal’s ruling, Greenpeace International Executive Director Kumi Naidoo said, “Today is a historic day – a day when the fundamental rights of the Arctic 30 have been upheld by an international court of law. These 30 men and women were detained only because they stood up and courageously took peaceful action against Arctic oil drilling and to halt the devastating impacts of climate change.”

“Now that the Tribunal has ordered their release, I would remind you that President Putin recently said in a letter to the American people, ‘The law is still the law, and we must follow it whether we like it or not.'”

“Greenpeace would not disagree. The law is the law and this ruling goes a long way towards rectifying the great injustice against the Arctic 30 and we welcome it with open hearts.

Russia declined to appear before the tribunal to present its case, but the tribunal ruled that this non-appearance did not affect its ruling.

“The Tribunal notes that the Russian Federation was given ample opportunity to present its observations but declined to do so. The Tribunal considers that the Netherlands should not be put at a disadvantage because of the non-appearance of the Russian Federation in the proceedings and that the Tribunal must therefore identify and assess the respective rights of the Parties involved on the best available evidence.”

Jasper Teulings, general counsel at Greenpeace International, said, “In lodging this lawsuit, the Dutch government took a strong stance in support of the rule of law and the right to peaceful protest and for that we are grateful
. Greenpeace is also a great believer in international law – after all one of the primary objectives of the UN Convention on the Law of the Sea is to protect the marine environment.”

“We thank the Tribunal and the Dutch government for bringing the freedom of our friends in Russia a significant step closer,” said Teulings. “Given that Russia is traditionally a strong defender of the importance of adhering to international law and of the UNCLOS regime, we at Greenpeace assume the Russian Federation will comply with the order.”

Naidoo said the actions of the Arctic 30 did more to help bring public awareness to the dangers of climate change than the UN climate negotiations in Warsaw which wrapped up today with little progress towards a legally-binding universal climate agreement.

“I have just come from the UN climate talks in Warsaw where governments again have failed to take action against climate change,” said Naidoo. “The Arctic 30 took action and it is time that governments acted with them.”

“It is time for the Arctic 30 to come home to their loved ones. It is time for the Arctic to be protected,” said the Greenpeace leader. “Thirty people stood up for seven billion people. We must stand with them.”

Special thanks to Richard Charter

Greenpeace: Absolute must-read from the Philippines

Greenpeace

As I was watching the tragic scenes of destruction from the Philippines and wondering how I could help, I received this email from the Executive Director of Greenpeace Southeast Asia, Von Hernandez.

It was such powerful reminder of why we do what we do that I asked if I could share it with you. He agreed.

Sincerely,

Phil Radford
Greenpeace USA Executive Director

P.S. For more on the aftermath of Typhoon Haiyan in the Philippines, visit our blog.

———-

From: Von Hernandez, Greenpeace Southeast Asia Executive Director
To: Phil Radford, Greenpeace USA Executive Director
Subject: Philippine Climate Disaster update

Dear friends,

Destruction in the Philippines

Click here for more on the aftermath of Typhoon Haiyan in the Philippines.

It is impossible to put into words the despair that millions of Filipinos are going through right now.

Days after Haiyan (Yolanda) sliced through the central islands of the Philippines, it has become horrifyingly clear that the damage wrought by the super typhoon has been colossal, the devastation absolute.

As of this writing, almost a thousand people have been officially confirmed to have lost their lives. The number of dead, however, is expected to exceed 10,000 — as more reports continue to filter in from other cities, islands and villages that were flattened by the apocalyptic winds and enormous walls of sea water that came rushing ashore.

More than 10 million people are estimated to have been displaced by this single event. Hunger, sickness and despair now stalk the most hard hit of areas, even as aid from both local and international sources started to trickle in. The President has already declared a state of national calamity.

It will probably take a few more days, maybe weeks before the total extent of this disaster can be confirmed. But for sure, this is now considered the worst natural calamity that the country has ever experienced.

While storms and typhoons are indeed natural occurrences, the ferocious strength and destructive power delivered by this typhoon have been characterized as off the charts and beyond normal.

This is also not the first time.

Last year, there was Bopha, which resulted in more than 600 fatalities, and before that a number of other weather aberrations too freakish even for a nation that has grown accustomed to getting more than 20 of these howlers in any given year. As if on cue, and following the template of Bopha in Doha, Haiyan also came at a time when the climate COP is taking place, this time in Warsaw.

Some of you would have already heard about the emotional opening speech delivered by the head of the Philippine delegation at the climate summit yesterday, bewailing the absence of responsible climate action at the global level and refusing to accept that the fate of Filipinos may now be irretrievably linked to a future where people are served super typhoons for breakfast, lunch and dinner.

Once again, a disaster such as this one, underscores the urgency of the work we do as a global organization on climate change.

It is in fearful anticipation of tragic scenarios such as these why our staff and activists go through great lengths, putting their life and liberty at risk, to take action at the frontlines of climate destruction — whether that’s in the forests of Sumatra or the hostile waters of the Arctic.

I would like to believe this is part of the larger narrative why 30 of our colleagues remain in detention in Russia. And it is our hope that they find courage and inspiration to endure the injustice they are going through, moving the planet away from the clear and present danger posed by runaway climate change.

We thank you all for the messages of solidarity and support you have sent our way at this time.

More importantly, I would urge you to use this moment to remind your governments that every investment in fossil fuels is an investment in death and destruction.

The impact of new coal plants being built or new oil fields being developed — do not remain in their immediate vicinities — they translate into epic humanitarian disasters and tragedies, as we continue to witness in the Philippines.

Regards,

Von Hernandez
Greenpeace Southeast Asia Executive

National Geographic: Earthquake Study Points to Possible Carbon Injection Risks

http://news.nationalgeographic.com/news/energy/2013/11/131104-carbon-injection-earthquake-risks/
Photo of an oil well drilling rig near Peggy, Texas.
co2-injection-earthquakes-texas-oil_73105_600x450
Oil rigs like this one long have been a feature of the Texas landscape. But for the first time, a study has traced a link between small earthquakes in western Texas and an increasingly common practice, underground injection of carbon dioxide to boost production.

Photograph by America, Alamy

Joe Eaton

For National Geographic

Published November 4, 2013

A cluster of 18 small earthquakes in western Texas was likely triggered by the injection of carbon dioxide into oil wells, according to a study published Monday in the scientific journal Proceedings of the National Academy of Sciences.

The study is the first to link carbon dioxide injections to actual earthquakes, and may help scientists evaluate the risks of storing greenhouse gas emissions deep underground, a fledgling technology for managing climate change known as geologic carbon sequestration. (See related “Quiz: What You Don’t Know About Carbon Capture.”) This week, energy secretaries from 22 nations and the European Union are meeting in Washington, D.C., to discuss how to spur global deployment of carbon capture and sequestration technologies.

The earthquakes evaluated in the study were magnitude 3 and slightly larger and occurred between 2006 and 2011 in the Cogdell oil field near Snyder, Texas. It was not the first time the area had experienced seismic activity. From 1975 to 1982, a number of earthquakes had struck the oil field. Scientists linked that seismic activity to the oil industry practice of injecting water into oil wells to increase production. When the water injections stopped, the earthquakes ceased.

Beginning in 2004, however, the oil industry injected carbon dioxide and other gases into wells in the Cogdell field, also in a bid to enhance production. Earthquakes returned soon after, according to the study.

Cliff Frohlich, study co-author and associate director of the Institute for Geophysics at the University of Texas at Austin, said carbon dioxide injection is the only variable that changed significantly before the earth started trembling.

Although injecting carbon dioxide to extract oil differs from carbon sequestration, Frohlich said his study could help scientists better understand possible risks of the technology, which has shown promise for reducing carbon emissions to the atmosphere.

“I’m not an expert on climate engineering, but a number of solutions have been proposed,” Frohlich said. “Whether they are good ideas or not, the jury is still out. Anytime you mess with the environment, there are unintended consequences.”

The study sheds further light on a category of seismic risks that is receiving increased attention in recent years: manmade risks caused by energy development that involves the injection of fluids underground, often at high pressure. The disposal of wastewater from hydraulic fracturing, or fracking, operations has been linked to temblors in several cases. (See related, “Fracking Wastewater Disposal Linked to Remotely Triggered Quakes” and “Scientists Say Oil Industry Likely Caused Largest Oklahoma Earthquake.”)

A 2012 report by the National Academy of Sciences warned that carbon sequestration might have the potential to induce larger earthquakes than fracking or injecting energy industry wastewater into the Earth’s subsurface. (See related blog post: “Tracing Links Between Fracking and Earthquakes.”) The increased risk is a result of the large volumes of carbon dioxide that would be injected, the study said. (See related, “Report Links Energy Activities to Higher Quake Risk.”)

Other scientists, however, worry the public might overlook the possible benefits of carbon sequestration by focusing on the risks. Andres Clarens, an assistant professor of environmental and water resources engineering at the University of Virginia, said he is concerned that Frohlich’s study could slow efforts to develop the technology. (See related, “Amid Economic Concerns, Carbon Capture Faces a Hazy Future,” and “A Quest to Clean Up Canada’s Oil Sands Carbon.”)

“Climate change is a well understood and imminent threat, and we are in dire need of strategies for reducing emissions while we scale up carbon-free energy sources,” Clarens said. “Quiz: What You Don’t Know About Climate Change Science.”)

In September, Clarens published a paper in Environmental Science and Technology, a scientific journal of the American Chemical Society, that proposed storing carbon dioxide in hydraulically fractured shale deposits after the removal of methane gas. The study found that the Marcellus shale formation in Pennsylvania alone has the potential to store roughly 50 percent of future U.S. nontransportation carbon dioxide emissions from 2018 to 2030.

Carbon sequestration is currently being tested at 65 sites around the world, including in Norway and Algeria and at a project site near Decatur, Illinois, where carbon dioxide totaling one million metric tons is being injected into a saline reservoir over a three-year period.

Wayne Pennington, a professor of geological and mining engineering and sciences at Michigan Technological University, said Frohlich’s paper is important because it provides the first example of an earthquake caused by carbon dioxide injection.

But Pennington said the study should not be read as the final word on the technology, which is widely used in international oil production without event.

What’s most intriguing, Pennington said, is that many locations are exposed to higher levels of injection than the Cogdell oil field but do not experience earthquakes. “We don’t know why,” he said. “Our understanding is clearly incomplete.” (See related, “Carbon Recycling: Mining the Air For Fuel,” and “Out of Thin Air: The Quest to Capture Carbon Dioxide.”)

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