SUN VALLEY, CA - DECEMBER 11: The Department of Water and Power (DWP) San Fernando Valley Generating Station is seen December 11, 2008 in Sun Valley, California. Under a new climate plan before state regulators, California would take major steps toward cutting greenhouse gas emissions. If adopted by the California Air Resources Board, it would be the most ambitious global warming prevention plan in the nation, outlining for the first time how businesses and the public would meet the 2006 law that made the state a leader on global climate change. The action would lead to the creation of a carbon-credit market to make it cheaper for the biggest polluters to cut emissions, and change the ways utilities generate power, businesses use electricity, and personal transportation (Photo by David McNew/Getty Images)
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Trump's EPA rollbacks could make air quality worse
The Lead
While President Trump says that US air quality is the best in the world, the 20th annual State of the Air report finds that pollution has gotten measurably worse over the last three years. CNN's Bill Weir reports.
03:00 - Source: CNN
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SUN VALLEY, CA - DECEMBER 11: The Department of Water and Power (DWP) San Fernando Valley Generating Station is seen December 11, 2008 in Sun Valley, California. Under a new climate plan before state regulators, California would take major steps toward cutting greenhouse gas emissions. If adopted by the California Air Resources Board, it would be the most ambitious global warming prevention plan in the nation, outlining for the first time how businesses and the public would meet the 2006 law that made the state a leader on global climate change. The action would lead to the creation of a carbon-credit market to make it cheaper for the biggest polluters to cut emissions, and change the ways utilities generate power, businesses use electricity, and personal transportation (Photo by David McNew/Getty Images)
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