pharflung
Joined: 29 Mar 2007
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 Posted: Thu Aug 09, 2007 6:37 pm Post subject: Time's up |
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Or so it appears.
http://www.nytimes.com/2007/08/10/science/earth/10arctic.html
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August 10, 2007
Analysts See �Simply Incredible� Shrinking of Floating Ice in the Arctic
By ANDREW C. REVKIN
The area of floating ice in the Arctic has shrunk more this summer than in any other summer since satellite tracking began in 1979, and it has reached that record point a month before the annual ice pullback typically peaks, experts said yesterday.
The cause is probably a mix of natural fluctuations, like unusually sunny conditions in June and July, and long-term warming from heat-trapping greenhouse gases and sooty particles accumulating in the air, according to several scientists.
William L. Chapman, who monitors the region at the University of Illinois Urbana-Champaign and posted a Web report on the ice retreat yesterday, said that only an abrupt change in conditions could prevent far more melting before the 24-hour sun of the boreal summer set in September. �The melting rate during June and July this year was simply incredible,� Mr. Chapman said. �And then you�ve got this exposed black ocean soaking up sunlight and you wonder what, if anything, could cause it to reverse course.�
Mark Serreze, a sea-ice expert at the National Snow and Ice Data Center in Boulder, Colo., said his center�s estimates differed somewhat from those of the Illinois team, and by the ice center�s reckoning the retreat had not surpassed the satellite-era record set in 2005. But it was close even by the center�s calculations, he said, adding that it is almost certain that by September, there will be more open water in the Arctic than has been seen for a long time. Ice experts at NASA and the University of Washington echoed his assessment.
Dr. Serreze said that a high-pressure system parked over the Arctic appeared to have caused a �triple whammy� � keeping away clouds, causing winds to carry warm air north and pushing sea ice away from Siberia, exposing huge areas of open water.
The progressive summertime opening of the Arctic has intensified a longstanding international tug of war over shipping routes and possible oil and gas deposits beneath the Arctic Ocean seabed.
Last week, Russians planted a flag on the seabed at the North Pole. On Wednesday, Stephen Harper, the Canadian prime minister, began a tour of Canada�s Arctic holdings, pledging �to vigorously protect our Arctic sovereignty as international interest in the region increases.� |
More:
http://www.nytimes.com/2007/08/09/science/earth/09adapt.html
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August 9, 2007
Aid to Help Asia and Africa With Effects of Warming
By ANDREW C. REVKIN
The Rockefeller Foundation says it will invest $70 million over the next five years to help Asian cities and African farmers withstand floods, droughts and other global warming hazards.
Foundation officials say the help will be needed no matter what is done to limit greenhouse gas emissions, because the world faces decades of rising temperatures and sea levels as a result of a century-long buildup of gases like carbon dioxide in the atmosphere. Poorer communities, lacking the money or technology to deal with a ruined harvest or an eroding coastline, face outsize threats.
Environmental and philanthropic groups have focused on limiting greenhouse gases. But Judith Rodin, president of the Rockefeller Foundation, said in an interview that helping vulnerable populations adapt to a changing climate must be a high priority.
�Emissions mitigation is fantastically important, but that is about changing behavior relative to future climate change,� Ms. Rodin said. �In the meantime, data and almost daily news reports show climate change is already happening.�
Ms. Rodin said the foundation would develop adaptation strategies that governments as well as international institutions, including the World Bank, could use. The bank has been working on making its third world development projects �climateproof,� so they can withstand the effects of global warming. That initiative, involving efforts like new highways and agricultural programs, could cost tens of billions of dollars.
Bank officials welcomed descriptions of the Rockefeller plan, which is being publicly announced today.
�The poor in developing countries will be hit the hardest by climate change,� said Katherine Sierra, vice president for sustainable development at the bank. �For them, any contribution from any sector to help their economies and societies adapt should be encouraged. So we particularly welcome the Rockefeller Foundation�s initiative.�
Other foundations have started concentrating on the need to limit vulnerability to climate change.
Andrew J. Bowman, director of a $100 million climate program announced last month by the Doris Duke Charitable Foundation, said about a quarter of that amount would go toward adaptation projects, mainly aimed at preserving wildlife habitat in a shifting climate.
The Rockefeller project, the Climate Change Resilience Initiative, will focus almost entirely on limiting risks to human populations, Ms. Rodin said.
Maria Blair, an associate vice president at the foundation, said a major goal would be to help Asian cities like Mumbai and Bangkok that are prone to flooding. The program will help such cities assess threats and devise tools to cut risks, including land-use plans, building codes and catastrophe insurance, she said.
The foundation says it will help African farmers who face severe hazards from drought along with a host of other problems, find ways to improve yields.
The latest report from the United Nations Intergovernmental Panel on Climate Change concluded that changes in rainfall and temperatures could deplete farm yields in some African countries 50 percent by 2020.
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Games over.
It was a nice planet while it lasted. |
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