This week's U.N. climate talks kept a plan for fighting global warming on track for expansion beyond 2012, but breakthroughs look unlikely before U.S. President George W. Bush steps down, experts said on Saturday.
"Everyone is waiting for the United States. I think the whole process will be on ice until 2009," when Bush's second term expires, said Paal Prestrud, head of the Center for International Climate and Environmental Research in Oslo.
The United States is the biggest source of greenhouse gases, mainly from burning fossil fuels, and Bush's decision to reject caps under the U.N.'s Kyoto Protocol discourages involvement by other big-polluting outsiders such as China and India.
After two weeks of talks, about 70 environment ministers in Nairobi agreed on Friday to a 2008 review of Kyoto as a possible prelude to deeper emission cuts by rich nations beyond 2012 and steps by developing countries to brake rising emissions.
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