EPA: Emissions pose health risk
Decision paves way for more regulation of greenhouse gases
By Jim Tankersley WASHINGTON — The federal government's declaration Friday that greenhouse gases are a threat to public health marked a first step toward likely regulation of the tailpipe emissions of cars, power plants and factories that scientists blame for global warming.The decision by the Environmental Protection Agency was a clear break with the Bush administration, which downplayed concerns about global warming, and set the stage for a possible national standard for vehicle emissions and other federal efforts to curb such pollution.
The Obama administration already is developing a plan to make the U.S. auto fleet cleaner by regulating carbon dioxide emissions from tailpipes. But the move Friday also gives it the capacity to either regulate larger emissions producers such as power plants or prod Congress to set limits, which the administration would prefer.
Lawmakers have begun debating legislation that would crack down on power-plant emissions, which generate twice as much greenhouse gas as cars and trucks. But the prospect of the White House taking action could push Congress to come to an agreement.
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