East Coast Blizzard and Europe’s Snowmaggddon Reveal Fingerprints of Climate Change

Coldest Christmas on Record on the UK -18C

In Oslo last June climate researcher’s told me the melting Arctic ice will likely produce colder winters in the eastern United States and Europe. Looks like they were right. Winter freeze up in the sunless Arctic ocean was two months late this year because of a near record ice loss last summer that is expected to continue if not accelerate in future years.

Several research programs have been studying the impacts of this huge loss in Arctic sea ice and presented their findings for first time at the International Polar Year Oslo Science Conference. My summary from 15 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.

Thanks to support from readers and the organizers of the conference I was able to attend that polar science conference. No media/publication would front any travel money to help me get there. I was one of a small handful of jurnos there and the first to write a piece documenting the link between global warming and bitter winter weather.

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My full article from Oslo is here: Arctic Melt Down Is Bringing Harder Winters and Permanently Altering Weather Patterns


Final Update: COP 16 Cancun Climate Conference

19 Dec 2010

On reflection there was some progress at COP 16. Small island states, whose very existence is threatened, were satisfied the world is on its way to a significant climate treaty so that is something. Last year in Copenhagen, hardly anyone happy with the outcome. There is still a long and difficult road ahead. Not least because there remains a powerful and well-funded opposition to emission reductions in many countries.

In 2011 I hope to uncover more about that opposition while continuing to write about how the physical processes of climate change are not waiting for us to get our act together. Substantial changes are already underway. Changes to the global water cycle have been shown in the first global study of evapotranspiration rates as detailed in my article: “Climate Changes Herald a Future of Widespread Drought – Water Left High and Dry in Climate Talks”

The article also looks at some fairly dire drought projections for the coming decades.

For those experiencing a rough, early winter, I did the first article revealing how the melting Arctic may be bringing earlier and harsher winters to the UK, parts of Europe and North America. That story happened because of donations to help cover my costs of attending a polar science conference in Oslo were those new findings were presented. Science journalism isn’t easy or cheap to do. I was one of  few journalists in Oslo because hardly any media outlet covers travel costs any more – never mind paying a decent fee for a story. That’s why I am trying Community Supported Journalism where people support my efforts to inform people about the great issues of our time.

A warm thank you to those who sponsored some of the Cancun articles, contributing some much needed cash to help cover my costs.  Supporters names are prominently listed in the articles here. I can no longer continue to do environmental and science journalism without your help so thank you for helping out.

— Stephen

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

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