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WASHINGTON - The chief U.S. negotiator on global warming acknowledged Wednesday the nation's glacial pace in reducing greenhouse gases and said even that might not continue in the future.
"One can argue whether it's slowing down fast enough, but it is slowing down," Harlan Watson, a State Department special envoy, told the Senate Environment and Public Works Committee. "We're doing better than business as usual. That's the president's goal."
Business as usual allows the United States to release into the air each year about 6.6 million tons of carbon dioxide, methane and other gases scientists blame for heating the atmosphere like a greenhouse — a quarter of the world's total emissions.
Sens. Thomas Carper, D-Del., and Lisa Murkowski, R-Alaska, likened the U.S. greenhouse gas emissions to a car that should first slow down, stop, then reverse course. "When is the year we're going to be able to say, 'The car is stopped?' Carper asked Watson. Watson answered that the administration was ahead of its goal for slowing the growth rate in emissions, "but I can't guarantee it's going to continue."
Emissions are growing at the rate of about 1.5 percent a year, despite the administration's voluntary climate change policies. By itself, that growth rate is expected to drop to about 1.3 percent by 2012 as industries adopt newer and cleaner technology. President Bush aims to decrease the growth rate to about 1.2 percent.
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