arctic

Arctic Ice in Death Spiral, Thaws Permafrost — Risks Climate Catastrophe

Stephen 1 Must Read, Alaska, CANADA, CLIMATE CHANGE/GLOBAL WARMING, Energy, global warming, News, Science , , , , ,

2 degrees C of warming could spark runaway global warming

By Stephen Leahy

UXBRIDGE, Canada, Sep 20, 2010 (IPS)

The carbon dioxide emissions from burning fossil fuels have melted the Arctic sea ice to its lowest volume since before the rise of human civilisation, dangerously upsetting the energy balance of the entire planet, climate scientists are reporting.

“The Arctic sea ice has reached its four lowest summer extents (area covered) in the last four years,” said Mark Serreze, director of the National Snow and Ice Data Center in the U.S. city of Boulder, Colorado.

The volume – extent and thickness – of ice left in the Arctic likely reached the lowest ever level this month, Serreze told IPS.

“I stand by my previous statements that the Arctic summer sea ice cover is in a death spiral. It’s not going to recover,” he said.

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Continue reading →

Arctic Melt Down Is Bringing Harder Winters and Permanently Altering Weather Patterns

Stephen 1 Must Read, Alaska, arctic, CANADA, CLIMATE CHANGE/GLOBAL WARMING, Energy, Global Issues and Perspectives, global warming, News, OCEAN, Science , , , , , , , , , , , ,

Last year’s cold and snowy winter directly connected to warmer Arctic new research reveals

By Stephen Leahy

OSLO, 15 June 2010 (IPS)

Last winter’s big snowfall and cold temperatures in the eastern United States and Europe were likely caused by the loss of Arctic sea ice, researchers concluded at the International Polar Year Oslo Science Conference in Norway in June.

Climate change has warmed the entire Arctic region, melting 2.5 million square kilometres of sea ice, and that, paradoxically, is producing colder and snowier winters for Europe, Asia and parts of North America.

“The exceptional cold and snowy winter of 2009-2010 in Europe, eastern Asia and eastern North America is connected to unique physical processes in the Arctic,” said James Overland of the NOAA/Pacific Marine Environmental Laboratory in the United States.

“In future, cold and snowy winters will be the rule rather than the exception” in these regions, Overland told IPS.

[[UPDATE Dec 29 2010 – Winter of 2010-11 appears to follow same pattern, see new post with northern hemisphere temp map for 20 Dec:  Arctic Hothouse Turns Europe into an Icebox]]

Scientists have been surprised by the rapid warming of the Arctic, where annual temperatures have increased two to three times faster than the global average. In one part of the Arctic, over the Barents and Karas Seas north of Scandinavia, average annual temperatures are now 10 degrees C higher than they were in 1990.

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Overland explains the warming of the Arctic as the result of a combination of climate change, natural variability, loss of sea ice reflectivity, ocean heat storage and changing wind patterns, which has disrupted the stability of the Arctic climate system. In just 30 years, all that extra heat has shrunk the Arctic’s thick blanket of ice by 2.5 million square kilometres – an area equivalent to more than one quarter the size of the continental U.S.

The changes in the Arctic are now irreversible, he said. Continue reading →

Ice, Polar Bears & the Arctic Melt Down That’s Changing the World

Stephen Alaska, arctic, Biodiversity, CANADA, CLIMATE CHANGE/GLOBAL WARMING, Energy, ENVIRONMENT, global warming , , , , ,

polar-bear-snout-wwwfirstpeopleus-smlIce-free summer in the Arctic is just a matter of time – mostly likely within the next 5 years. Here’s a “six-pack” of my recent articles on how global warming is transforming the Arctic:

The Arctic — The Earth’s Freezer — Is Defrosting With Dire Results

The rapidly warming Arctic region is destabilising Earth’s climate in ways science is just beginning to comprehend.

Arctic Leaking Methane a Super-Potent Global Warming Gas — Reaching Feared Tipping Point? —“The way we’re going right now, I’m not optimistic that we will avoid some kind of tipping point.“ceberg-in-glacier-strait-nunavut-canada-image-credit-sandy-briggs

Arctic Ice Gone in 5 Years – First Time in One Million Years –– “We’re going to see huge changes in the Arctic ecosystem”

Things Happen Much Faster in the Arctic — “Things are happening much faster in the Arctic. I think it will be summer ice-free by 2015,” said David Barber, an Arctic climatologist at the University of Manitoba.

Arctic Is the Canary in the Coalmine — The Arctic is “ground zero” for climate change, with temperatures rising far faster than anywhere else on the planet.

Arctic Oil and Gas Rush Alarms Scientists — As greenhouse gas pollution destroys Arctic ecosystems, countries like Canada are spending millions not to halt the destruction but to exploit it.

Oh yeah, and about those polar bears:

Polar Bear (Sow And Cub), Arctic National Wild...

Polar Bears Go Hungry as Icy Habitat Melts Away — The iconic animal of the frozen north, the polar bear, is starving to death because climate change is melting the Arctic Ocean sea ice.

Oil vs Polar Bears in Alaska — A coalition of environmental groups sued the George W. Bush administration Monday for delaying a decision to protect polar bears threatened with extinction

Polar Bears’ Future Bleak in Melting Arctic — “Without taking serious and urgent action to stabilize the climate, there is no future for polar bears” says Andrew Derocher, Chair of the World Conservation Union (IUCN), Polar Bear Specialist Group.

Arctic Leaking Methane a Super-Potent Global Warming Gas — Reaching Feared Tipping Point?

Stephen Alaska, CLIMATE CHANGE/GLOBAL WARMING, Energy, Global Issues and Perspectives, global warming, News, OCEAN , , , ,

By Stephen Leahy

“The way we’re going right now, I’m not optimistic that we will avoid some kind of tipping point.”

— Mark Serreze, senior research scientist at the National Snow and Ice Data Centre

UXBRIDGE, Canada, Mar 5, 2010 (IPS)

The frozen cap trapping billions of tonnes of methane under the cold waters of the Arctic Ocean is leaking and venting the powerful greenhouse gas into the atmosphere, new research shows.

It is not known if this may be one of the first indicators of a feedback loop accelerating global warming.

Researchers estimate that eight million tonnes in annual methane emissions are being released from the shallow East Siberian Arctic Shelf, which is equivalent to all the methane released from the world’s oceans, covering 71 percent of the planet.

On a global scale of methane emissions from the land-based sources – animals, rice paddies, rotting vegetation – the newly measured emissions from the Siberian seabed are less than two percent.

“That’s still very significant,” Natalia Shakhova, a researcher at the University of Alaska in Fairbanks, told IPS. “Before, it was assumed that this region had zero emissions.”

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Methane concentrations measured over the oceans are currently about 0.6 to 0.7 parts per million (ppm), but they are now 1.85 in the Arctic Ocean generally, and between 2.6 and 8.2 ppm in the East Siberian Arctic Shelf, an area roughly two million square kilometres in size, said Shakhova.

Shakhova, and her University of Alaska colleague Igor Semiletov, led eight international expeditions to one of the world’s most remote and desolate regions and published their results in the Mar. 5 edition of the journal Science. Continue reading →

You Go First Carbon Politics Threatens Us All

Stephen CLIMATE CHANGE/GLOBAL WARMING, economics, Energy, News , , , , ,

mage showing iceberg off Baffin Island, Nunavut, Canada with meltwater ponds in the foreground. Arctic warming has been associated with a rapid decline in Arctic summer sea ice extent. Image credit- Sandy BriggsBy Stephen Leahy

NY-ÅLESUND, Svalbard, Norway, Jun 15 (IPS)

Political and business leaders may agree in principle that climate change is a serious threat, but there is a startling lack of consensus and a ‘you-go-first’ attitude on taking action, even amongst a small group of high-level decision makers disconnected from their cell phones here in the Arctic.

“We want to reduce China’s CO2 (carbon dioxide) emissions, but we are a market-driven economy,” Liu Yanhua, China’s vice minister for science and technology, told 30 participants at the Ny-Ålesund Symposium located at a scientific research centre called Kings Bay on the western coast of Spitsbergen Island about 1,200 kilometers from the North Pole.

“Climate change is a matter of economy, of energy,” said Yanhua, a former scientist at the Chinese Institute of Geography.

It is also an issue of generational equity, since at current rates all fossil fuels will be consumed in 50 to 80 years, leaving nothing for future generations, he said.

China’s CO2 emissions have soared 150 percent in the last 20 years, Yanhua acknowledged, and are now the highest of any country, including the United States. China’s carbon intensity – the amount of carbon emitted per unit of production – is 10 times higher than Germany’s and major efficiency improvements are needed, he said. Continue reading →

Arctic Meltdown Signals Long-Term Trend

Stephen Alaska, CLIMATE CHANGE/GLOBAL WARMING, Energy, ENVIRONMENT

By Stephen Leahy

UXBRIDGE, Canada , Sep 5 (IPS) – Soaring temperatures have led to the collapse of several huge ice shelves in the Canadian Arctic over the past few weeks.

One 50 sq km ice shelf on the northern coast of Canada’s Ellesmere Island simply “vanished” over three days, exposing a coast that lay buried under ice for at least 4,000 years.

At the same time, the Arctic’s thick, year-round sea ice cover has declined to near the 2007 record of 2.6 million square kilometres less ice than the summer average minimum. This year’s ice loss is still huge — an area that’s far larger than the states of Alaska and Texas combined.

“My gut feeling is that the sea ice decline won’t beat last year’s record,” said Walter Meier of the National Snow and Ice Data Center at the University of Colorado in Boulder.

This year’s sea ice decline is expected to reach its peak in the next few days. “The (2008) decline is already the second largest loss of summer ice on record even though the weather was not as warm as last year,” Meier told IPS. Continue reading →

Oil vs Polar Bears in Alaska: Big Oil Sues Govt for Protecting Polar Bear Habitat

Stephen Alaska, arctic, Biodiversity, CANADA, CLIMATE CHANGE/GLOBAL WARMING, Energy, ENVIRONMENT, OCEAN , , , ,

[Update Mar 3 2011: An Alaska oil industry trade group representing 15 oil & gas companies sued the US federal government because it banned drilling in 187,157 square miles as polar bear critical habitat. They claim plenty of polar bears without offering any evidence. And it’s not like Alaskan oil interests haven’t run the state for years. My article below documents how 30 million acres of polar bear habitat were auctioned off in a big hurry in 2008. It really is all about oil/gas $ VS survival of polar bears. — Stephen]

[Update: May 1 2010 – Alaska’s polar bears are now official listed as threatened. In April 2010, the Obama administration tried but failed to get the world’s 20-25,000 remaining polar bears listed as endangered species. What a difference a new administration makes .–Stephen]

By Stephen Leahy

BROOKLIN, Canada, Mar 11, 2008 (IPS)

A coalition of environmental groups sued the George W. Bush administration Monday for delaying a decision to protect polar bears threatened with extinction due to the melting ice in its Arctic habitat. Polar bears could be the first species officially threatened by climate change.

The huge loss of summer sea ice in 2007 has caused many scientists to project that the Arctic could be ice-free in summer by as soon as 2012. Although excellent swimmers, polar bears are not very good at catching seals in the water. Seals comprise the main diet for these giant bears, which are far larger than their grizzly bear cousins.

While legally required to make a decision Jan. 9, US Fish and Wildlife (U.S. FWS) officials have been silent. Meanwhile on Feb. 6, 2.6 billion dollars in oil and gas leases were auctioned off to energy companies on nearly 30 million acres of prime polar bear habitat in the Alaska’s Chukchi Sea.

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“Coincidence? I doubt it, but I don’t have the smoking gun to prove it,” said Kassie Siegel of the Centre for Biological Diversity (CBD), an environmental non-governmental organisation based in Joshua Tree, California.

The CBD, along with Greenpeace and the Natural Resources Defence Council, filed the suit for missing the legal deadline for issuing a final decision on whether to list the polar bear under the Endangered Species Act due to global warming.

“There was absolutely no urgency to hold that lease sale and plenty of public opposition to it as well,” Siegel told IPS. Continue reading →

GW Dramatically Rearranging Arctic Landscape

Stephen Alaska, CANADA, CLIMATE CHANGE/GLOBAL WARMING, ECOLOGY, Energy, ENVIRONMENT, Indigenous People, News, OCEAN, WILDLIFE , , ,

By Stephen Leahy


Credit:micropolisnews

A lone glacier drifts in the Canadian Arctic, Aug. 14, 2007.

Oct 4 (IPS) – The hot breath of global warming has now touched some of the coldest northern regions of world, turning the frozen landscape into mush as temperatures soar 15 degrees C. above normal.

Entire hillsides, sometimes more than a kilometre long, simply let go and slid like a vast green carpet into valleys and rivers on Melville Island in Canada’s northwest Arctic region of Nunavut this summer, says Scott Lamoureux of Queens University in Canada and leader of one the of International Polar Year projects.

“The entire landscape is on the move, it was very difficult to find any slopes that were unaltered,” said Lamoureux, who led a scientific expedition to the remote and uninhabited island. Continue reading →