California adopts the most sweeping curbs on greenhouse gas emissions in U.S.

The state air board orders a 15% cut in emissions over the next 12 years, bringing them down to 1990 levels.

California regulators adopted the nation’s first comprehensive plan to slash greenhouse gases Thursday and characterized it as a model for President-elect Barack Obama, who has pledged an aggressive national and international effort to combat global warming.

By Margot Roosevelt

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