The pace of global warming is exceeding the worst case scenarios presented in the 2007 report issued by the Intergovernmental Panel on Climate Change, according to a statement issued by hundreds of climate change scientists last week.
A group of about 2,000 climage experts met in Copenhagen to update the findings of the 2007 report.
"The worst-case IPCC scenario trajectories (or even worse) are being realized," the statement said. "There is a significant risk that many of the trends will accelerate, leading to an increasing risk of abrupt or irreversible climatic shifts."
The group will present its updated findings to politicians in December, when they meet in Copenhagen to negotiate an international climate change treaty to replace the Kyoto Protocol, which concludes in 2012.
"We know from scientific evidence that climate change is a reality and that climate change will have damaging effects on the economy all over the world," said Danish Prime Minister Anders Fogh Rasmussen, who attended the conference. "Therefore we need an agreement and we need an agreement this year."
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U.N. Secretary-General Ban Ki-moon said at the end of last week that U.S. President Barack Obama told him the U.S. would work with the United Nations to reach a climate change deal acceptable to the world community by the end of 2009.
Read the Reuters report below.