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Latest IPCC Third Assessment Report Stories

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2010-08-10 10:15:00

Global warming is at least partially to blame for a recent bout of hot and dry weather that has triggered wildfires in Russia, according to experts interviewed by AFP and BBC News this week. "The Russian heatwave is related to a persistent pattern of circulation drawing air from the south and east (the very warm steppes)," Dr. Jeff Knight, a climate variability scientist at the UK Met Office, told BBC Science Reporter Katia Moskvitch Tuesday. "Circulation anomalies tend to create warm and...

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2010-08-03 08:42:40

Meteorologists have determined exactly how much carbon dioxide humans can emit into the atmosphere while ensuring that the earth does not heat up by more than two degrees The Intergovernmental Panel on Climate Change (IPCC) calculated projected temperature changes for various scenarios in 2007 and researchers at the Max Planck Institute for Meteorology in Hamburg have now gone one step further: they have developed a new model that specifies the maximum volumes of carbon dioxide that humans...

2010-07-26 12:13:10

The terrestrial biosphere regulates atmospheric composition, and hence climate. Projections of future climate changes already account for "carbon-climate feedbacks", which means that more CO2 is released from soils in a warming climate than is taken up by plants due to photosynthesis. Climate changes will also lead to increases in the emission of CO2 and methane from wetlands, nitrous oxides from soils, volatile organic compounds from forests, and trace gases and soot from fires. All these...

2010-07-05 15:03:00

VANCOUVER, July 5 /PRNewswire-FirstCall/ - The Federal Review Panel, established for the purpose of conducting a review of the environmental effects of Taseko Mines Limited's (TSX: TKO; NYSE Amex: TGB) ("Taseko" or the "Company") Prosperity Gold-Copper Project, has submitted its report to the Government of Canada. The Panel findings are very similar to the conclusions reached in the Provincial environmental assessment process - that the loss of Fish Lake and adjacent meadows constitutes a...

2010-06-06 07:23:08

Vegetation around the world is on the move, and climate change is the culprit, according to a new analysis of global vegetation shifts led by a University of California, Berkeley, ecologist in collaboration with researchers from the U.S. Department of Agriculture Forest Service. In a paper published today in the journal Global Ecology and Biogeography, researchers present evidence that over the past century, vegetation has been gradually moving toward the poles and up mountain slopes, where...

2010-05-19 14:57:11

As part of its most comprehensive study of climate change to date, the National Research Council today issued three reports emphasizing why the U.S. should act now to reduce greenhouse gas emissions and develop a national strategy to adapt to the inevitable impacts of climate change. The reports by the Research Council, the operating arm of the National Academy of Sciences and National Academy of Engineering, are part of a congressionally requested suite of five studies known as AMERICA'S...

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2010-05-14 10:50:00

The head of the United Nation's climate change panel defended its case against an academic council charged with reviewing its research methods after a string of challenges to its findings. Rajendra Pachauri, a chairman of the Intergovernmental Panel on Climate Change (IPCC), said there was an error made when warning that the Himalayan glaciers could melt by 2035.  However, he said there was some value to the findings. "Alright, there was this error, but there is a whole lot of valid...

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2010-05-04 08:09:46

Fulfilling Copenhagen Accord will require variety of efforts ranging from 'Herculean' to the readily actionable, scientists say Major greenhouse gas-emitting countries agreed in December climate talks held in Copenhagen that substantial action is required to limit the increase of global average temperature to less than 2 degrees C (3.6 degrees F). In a paper appearing May 3 in the Proceedings of the National Academy of Sciences (PNAS), Veerabhadran Ramanathan and Yangyang Xu, climate...

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2010-05-02 07:57:56

NSF-supported climate scientist Mark Flanner and colleagues find differences in the rates for spring warming and snow cover decline in Eurasia and North America, and are studying whether aerosols are a key factor Over the past 30 years, springtime snow melt and warming appear to be proceeding at a faster rate in Eurasia than in North America. Climate scientist Mark Flanner, an assistant professor at the University of Michigan and a recent Advanced Study Program graduate at the National...

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2010-04-24 09:37:00

Iceland's volcanic eruption, which grounded air traffic for days, may provide rare clues as to how flights encourage climate change, adding to evidence from a ban on US flights after the World Trade Center attacks on September 11, 2001, according to a recent Reuters report. How jet fuel being burned at high altitudes affects climate is poorly understood, largely because scientists cannot often compare plane-free skies with the everyday air traffic that clutters many regions. Not since 2001...