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Posted Sat Jun 12 2010: from
AFP:
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World still heading for 3 degree Celsius by 2100: study http://apocadocs.com/s.pl?1276368536
The world is careering towards three degrees Celsius (5.4 degrees Fahrenheit) of warming by 2100 despite headline-making promises to curb carbon emissions, a study released at UN talks here said on Thursday.
"The current pledges and loopholes give us a virtual certainty of exceeding 1.5 C (2.7 F), with global warming very likely exceeding 2 C (3.6 F) and a more than 50-percent chance of exceeding 3 C (5.4 F) by 2100," said Bill Hare of Germany's Potsdam Institute for Climate Impact Research (PIK).
Around 120 countries have signed up to voluntary action on greenhouse gases under last December's Copenhagen Accord, which aims to limit warming since pre-industrial times to 2.0 C.... Scientists caution there is no consensus on what is a safe level for warming, and some say a rise of even 2.0 C could still have far-reaching risks for ice and snow cover and rainfall patterns.... Temperatures have already risen by around 0.8 C (1.4 F) since the start of the Industrial Revolution, causing worrying glacier melt, snow loss and retreating permafrost and an accelerating rise in ocean levels, according to the UN's Intergovernmental Panel on Climate Change (IPCC).
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