Blue Marble

We're Scarily Close to the Permafrost Tipping Point

| Tue Mar. 5, 2013 4:15 AM PST
PermafrostPermafrost, Sweden:

Permafrost—the ground that stays frozen for two or more consecutive years—is a ticking time bomb of climate change. Some 24 percent of Northern Hemisphere land is permafrost. That's 9 million square miles (23 million square kilometers) found mostly in Siberia, the Tibetan Plateau, Alaska, the Canadian Arctic, and other higher mountain regions.

Unfortunately, thawing permafrost releases massive amounts of methane and/or carbon dioxide. The question is whether that would happen over the course of decades or over a century or more. This short video from the Yale Climate Forum explains the current scientific thinking on just how close we might be to the lethal tipping point.

Meanwhile this 90-second permafrost primer from the Climate Desk explains exactly we want this northern freezer to remain frozen. 

The map below shows land-based permafrost in the Northern Hemisphere. It also shows the subsea permafrost that underlies the continental shelves of the Arctic Ocean. 

Map of Northern Hemipshere permafrost on land and under the Arctic Ocean:
Map of Northern Hemisphere permafrost on the land and under the Arctic Ocean: Credit: Tingjun Zhang via the National Snow & Ice Data Center

We really really don't want permafrost to melt since its emissions have the potential to dwarf our own. As the Yale Climate Forum video says, we have the theoretical ability to control our carbon emissions but none whatsoever to stop a permafrost tipping point once it's reached.

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"Promiscuous" Bees and Vanishing Insects Mean Less Food for Us

| Tue Mar. 5, 2013 4:01 AM PST
A wild Andrena bee visits a highbush blueberry flower.

The foods that make our meals more colorful and delicious—coffee, watermelon, almonds, to name a few—depend on pollinators like bees. In fact, three-quarters of global food crops rely at least partly on pollination by animals. But two reports published in Science last week show how wild pollinating insects such as bumblebees, butterflies, and beetles are disappearing, putting these foods at risk. Plus, one of the reports reveals, substituting hives of honeybees isn't going to cut it—according to research collected across 20 countries, managed honeybees don't do nearly as good of a job at pollinating as their wild counterparts.

Enviros Cheer Obama EPA Pick

| Mon Mar. 4, 2013 9:16 AM PST

On Monday, President Barack Obama announced the nomination of Gina McCarthy as the new head of the Environmental Protection Agency—a promotion for the deputy who has been behind some of the toughest new environmental regulations in the past four years.

As the assistant administrator for EPA's Office of Air and Radiation, McCarthy has helped implement a raft of new or improved national standards for pollutants such as mercury, sulfur and nitrogen oxide emissions, and soot, and she oversaw the first-ever limits on greenhouse gas emissions from new power plants.

"Every American is—or will soon be—breathing cleaner air because of McCarthy," says Frank O'Donnell, president of Clean Air Watch.

Her appointment to the top spot at EPA is seen by enviros as good news for the future of greenhouse gas regulations. After rolling out emission limits for new power plants last year, the EPA is now expected to set rules for existing power plants—a huge task given the number of old, dirty plants around the country. That's just one item on a long list of environmental regulations that were delayed until after the 2012 election. Now McCarthy will manage the implementation and/or drafting of these regs.

Another reason enviros are cheering McCarthy's appointment is her bipartisan history. Before coming to the EPA, McCarthy worked for Massachusetts Gov. Mitt Romney as his undersecretary for environmental policy. After that, she worked for Connecticut Gov. Jodi Rell, another Republican. "McCarthy's stellar work under two Republican governors as well as her excellent work over the past four years at the EPA is proof that when it comes to protecting our health and environment, it isn't about who you work for or what party you represent," says Margie Alt, executive director for Environment America. "It's about whether you can get the job done. And Gina McCarthy can get the job done."

This Cheat Sheet Will Make You Win Every Climate Argument

| Mon Mar. 4, 2013 4:02 AM PST

"I don't see what all those environmentalists are worried about," sneers your Great Uncle Joe. "Carbon dioxide is harmless, and great for plants!"

Okay. Take a deep breath. If you're not careful, comments like this can result in dinner-table screaming matches. Luckily, we have a secret weapon: A flowchart that will help you calmly slay even the most outlandish and annoying of climate-denying arguments:

Climate argument flowchart

New Obama Admin. Report on Keystone XL Pipeline Has Enviros Worried

| Fri Mar. 1, 2013 4:22 PM PST

On Friday afternoon, the State Department released a draft of its much-anticipated new analysis of the environmental impact of the proposed Keystone XL pipeline. Although the report makes no firm statement one way or the other about whether the controversial pipeline from Canada to Texas should be approved, some of its conclusions have enviros worried that a greenlight is inevitable.

The administration has spent more than two years considering whether to approve the 1,600-mile pipeline that would carry oil from Canada's tar sands to refineries in Texas. Because the pipeline crosses an international border, the State Department gets to decide whether it should be built. Climate change activists have been holding rallies and civil disobedience actions outside the White House for the past year and a half in an effort to convince the administration to block the project. Obama delayed a decision on the pipeline in November 2011, asking the State Department to produce more research on the pipeline's potential environmental impact—the report, a "supplemental environmental impact statement," or SEIS, that was issued Friday afternoon.

Enviros immediately seized on the new report, arguing against its claim that any spills associated with the pipeline are "expected to be rare and relatively small," and said it underestimated the project's contribution to planet-warming greenhouse gas emissions. They also challenged the idea that TransCanada's pipeline will not make a huge difference in the development of the tar sands, pointing to the industry's own claims that the pipeline is essential to their plans to expand export of this type of oil.

"If they don't have [Keystone XL], they won't be able to expand the tar sands like they've been planning to," said Bill McKibben, the author and activist whose group, 350.org, has organized the pipeline protests. He called the pipeline "the most important issue for the environmental movement in a very long time," noting that it has brought "huge numbers of Americans into the streets."

Michael Brune, president of the Sierra Club, noted the timing of the draft's release. "You know the news is bad when it's buried at 4 o'clock on a Friday afternoon," he said on a call with reporters shortly after the release. Enviros have framed the pipeline as a test of Obama's sincerity on dealing with climate change. Brune acknowledged that the SEIS likely "makes the president's job more difficult" because it will increase pressure on him to approve the pipeline.

But, Brune added, "this is the president's decision. He can either lead our country to a clean energy future … or he can approve a pipeline that will bring the dirtiest oil on the planet through the US, and for the next decades we will know that the Keystone XL was approved under Obama at the time that we needed strong leadership on this issue."

The report is in draft form and will be open for public comment for 45 days. After that, the State Department will issue a final report and, eventually, a final decision on whether the pipeline should be built.

McKibben said the pipeline's critics will not be deterred by Friday's draft report. "I don't think anybody is going to walk away form this fight," McKibben said. "My guess is this will produce more determination in a lot of people."

TIMELINE: Shell's Year of Arctic Screwups

| Fri Mar. 1, 2013 4:06 AM PST
shell arctic

Last August, Shell got a long-awaited go-ahead from US regulators to begin exploratory oil drilling in the Arctic. It's a potential gold mine for the company—up to a fifth of the world's untapped oil resources are in the Arctic. But instead of rolling in cash, Shell ended up getting rolled by one disaster after another, culminating in the crash in January of drilling rig and a subsequent investigation by the feds. And that was only the next act in a comedy of errors that's been unfolding for over a year, and that finally ended—for now, anyway—this week, when the company announced it would "pause" its Arctic operations. Here's a look back at Shell's tumultuous run in the Arctic, featuring coverage by our Climate Desk partners:

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More (Stronger) Evidence Linking Sugar to Diabetes

| Thu Feb. 28, 2013 11:36 AM PST

A new study published in the open-access science journal PLoS One offers some of the strongest evidence yet associating sugar, independent of other diet and lifestyle factors, with type 2 diabetes—a link that the sugar industry has sought for decades to debunk.

The study's four authors, including Robert Lustig of the University of California-San Francisco, examined data on sugar intake and diabetes prevalence in 175 countries "controlling for other food types (including fibers, meats, fruits, oils, cereals), total calories, overweight and obesity, period-effects, and several socioeconomic variables such as aging, urbanization and income."

For each bump in sugar "availability" (consumption plus waste) equivalent to about a can of soda per day, they observed a 1 percent rise in diabetes prevalence. This is a correlation, of course, and correlation does not necessarily equal causation. On the other hand, as the authors note in a lay summary, this "is far stronger than a typical point-in-time medical correlation study."

"No other food types yielded significant individual associations with diabetes prevalence after controlling for obesity and other confounders," the PLoS article states. "Differences in sugar availability statistically explain variations in diabetes prevalence rates at a population level that are not explained by physical activity, overweight or obesity."

The correlation, the authors also reported, was "independent of other changes in economic and social change such as urbanization, aging, changes to household income, sedentary lifestyles, and tobacco or alcohol use. We found that obesity appeared to exacerbate, but not confound, the impact of sugar availability on diabetes prevalence, strengthening the argument for targeted public health approaches to excessive sugar consumption."

VIDEO: On the Ground at the BP Gulf Oil Spill Hearings

| Thu Feb. 28, 2013 4:07 AM PST

This week marked the start of the the civil trial against BP over its role in the 2010 explosion at the Deepwater Horizon oil rig that killed 11 men and caused the worst spill in US history. District judge Carl Barbier warned of a lengthy trial, one that could last up to 3 months if a deal isn't reached earlier, and if the first three days of the trial are anything to go by, BP is in for a battery of tough questions about its safety record and procedures. As much as $17.5 billion in damages is hinged on the legal question of whether the company was "grossly negligent" in causing the deaths and the subsequent spill. Climate Desk caught up with Dominic Rushe at partner publication, the Guardian, who has been covering the trial as it unfolds.

Top 4 Reasons the US Still Doesn't Have a Single Offshore Wind Turbine

| Thu Feb. 28, 2013 4:07 AM PST
"Jack-up" ships like this are needed to drive massive offshore wind turbines into the seafloor. There's not a single one in the US.

Despite massive growth of the offshore wind industry in Europe, a blossoming array of land-based wind turbines stateside, and plenty of wind to spare, the United States has yet to sink even one turbine in the ocean. Not exactly the kind of leadership on renewables President Obama called for in his recent State of the Union address.

Light is just beginning to flicker at the end of the tunnel: On Tuesday, outgoing Interior Secretary Ken Salazar told a gathering of offshore industry leaders he was optimistic the long-embattled Cape Wind project would break ground before year's end. And in early January industry advocates managed to convince Congress to extend a critical tax incentive for another year.

But America's small-yet-dedicated entrepreneurial corps of offshore developers are still chasing "wet steel," as they call it, while their European and Asian colleagues forge ahead on making offshore wind a basic component of their energy plans. So what's the holdup? Here's a look at the top reasons that offshore wind remains elusive in the United States:

Watch Live: How the US Navy Is Leading the Charge on Clean Energy and Climate Change

Wed Feb. 27, 2013 6:11 AM PST

Event live stream to start 02/27/13 around 9:30 a.m. EST:

The US Navy is now leading the charge towards clean energy—which is big news for national security and even climate change. Through investments in biofuels, construction of a more energy-efficient fleet, forward thinking about issues like rising sea levels and a melting Arctic, and commitments to reduce consumption and reliance on foreign oil, the Navy is poised to "change the way the US military sails, flies, marches, and thinks."

Please join host Chris Mooney for the next installment of Climate Desk Live on Wednesday February 27 at 9:30 a.m, where he'll discuss the Navy's charge towards energy independence with Dr. David W. Titley, retired naval officer who led the US Navy's Task Force on Climate Change; Capt. James C. Goudreau, Director, Navy Energy Coordination Office; Dr. D. James Baker, Director of the Global Carbon Measurement Program of the William J. Clinton Foundation and Former Administrator of the National Oceanic and Atmospheric Administration (NOAA) under the Clinton Administration; and Julia Whitty, environmental correspondent for Mother Jones whose cover story on this topic appears in latest issue of the magazine.