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Thu, Feb. 25

Pollution rollbacks: What will be the result?

Air quality in Los Angeles has vastly improved since 1970, when California was granted the authority to set emissions standards that are tighter than federal standards. Thirteen other states have adopted California’s standards. (Photo by alpe89 via Flickr/Creative Commons)

Air quality in Los Angeles has vastly improved since 1970, when California was granted the authority to set emissions standards that are tighter than federal standards. Thirteen other states have adopted California’s standards. (Photo by alpe89 via Flickr/Creative Commons)

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