Climate

Global warming could starve oceans of oxygen: study
May 2, 2008 08:42 AM - Reuters

Global warming could gradually starve parts of the tropical oceans of oxygen, damaging fisheries and coastal economies, a study showed on Thursday. Areas of the eastern Atlantic and Pacific Oceans with low amounts of dissolved oxygen have expanded in the past 50 years, apparently in line with rising temperatures, according to the scientists based in Germany and the United States.

Arctic sea ice forecast: another record low in 2008
May 1, 2008 08:37 AM - Reuters

Arctic sea ice, sometimes billed as Earth's air conditioner for its moderating effects on world climate, will probably shrink to a record low level this year, scientists predicted on Wednesday. In releasing the forecast, climate researcher Sheldon Drobot of the University of Colorado at Boulder called the changes in Arctic sea ice "one of the more compelling and obvious signs of climate change."

World's largest lake warming rapidly: scientists
April 30, 2008 07:39 PM - Reuters

Siberia's Lake Baikal has warmed faster than global air temperatures over the past 60 years, which could put animals unique to the world's largest lake in jeopardy, U.S. and Russian scientists said. The lake has warmed 1.21 degrees Celsius (2.18 degrees Fahrenheit) since 1946 due to climate change, almost three times faster than global air temperatures, according to a paper by the scientists to be published next month in the journal "Global Change Biology."

Climate change hitting Arctic faster, harder
April 30, 2008 09:50 AM - WWF

Climate change is having a greater and faster impact on the Arctic than previously thought, according to a new study by the global conservation organization WWF. The new report, called Arctic Climate Impact Science — An Update Since ACIA, represents the most wide-ranging reviews of arctic climate impact science since the Arctic Climate Impact Assessment (ACIA) was published in 2005. The new study found that change was occurring in all arctic systems, impacting on the atmosphere and oceans, sea ice and ice sheets, snow and permafrost, as well as species and populations, food webs, ecosystems and human societies.

Russia says has no plans to cap carbon emissions
April 29, 2008 09:45 AM - Reuters

Russia will not accept binding caps on its greenhouse gas emissions under a new climate regime, currently being negotiated to succeed the Kyoto Protocol after 2012, top officials said on Monday. Kyoto puts a cap on the average, annual greenhouse gas emissions from 2008-12 for some 37 industrialized countries, including Russia.

Desalination Raises Environmental, Cost Concerns
April 29, 2008 09:42 AM - Ben Block, Worldwatch Institute

As global freshwater reserves dry up, desalination plants are receiving greater attention as an option for providing both drinking water supplies and agricultural irrigation. But a new study released on Thursday raises several concerns about the environmental impact and cost effectiveness of the widely touted technology to convert seawater to fresh water. Desalination plants pose a risk to marine species when the water is collected from ocean areas, as well as when the salty discharge is deposited into coastal estuaries, according to the report, which was released by the U.S. National Research Council (NRC).

Emissions irrelevant to future climate change?
April 28, 2008 07:16 AM - BioMed Central

Climate change and the carbon emissions seem inextricably linked. However, new research published in BioMed Central’s open access journal Carbon Balance and Management suggests that this may not always hold true, although it may be some time before we reach this saturation point. The land and the oceans contain significantly more carbon than the atmosphere, and exchange carbon dioxide with the atmosphere.

Sudanese climate scientist receives prestigious award
April 28, 2008 06:28 AM - , SciDevNet

A Sudanese climate researcher has been honoured by the UN Environment Programme in recognition of her work on climate change and adaptation in conflict-stricken Darfur. Balgis Osman-Elasha, a senior researcher at Sudan's Higher Council for Environment and Natural Resources, was presented with a 'Champions of the Earth 2008' award this week (22 April), along with six other awardees from Bangladesh, Barbados, Monaco, New Zealand, United States and Yemen.

Human warming hobbles ancient climate cycle
April 28, 2008 06:07 AM - Reuters

WASHINGTON (Reuters) - Before humans began burning fossil fuels, there was an eons-long balance between carbon dioxide emissions and Earth's ability to absorb them, but now the planet can't keep up, scientists said on Sunday. The finding, reported in the journal Nature Geoscience, relies on ancient Antarctic ice bubbles that contain air samples going back 610,000 years.

Plan to reverse global warming could backfire
April 25, 2008 05:15 AM - Reuters

CHICAGO (Reuters) - A proposed solution to reverse the effects of global warming by spraying sulfate particles into Earth's stratosphere could make matters much worse, climate researchers said on Thursday. They said trying to cool off the planet by creating a kind of artificial sun block would delay the recovery of the Antarctic ozone hole by 30 to 70 years and create a new loss of Earth's protective ozone layer over the Arctic.

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