California orders hike in number of super clean cars

Saturday, January 28, 2012 - 01:30 in Earth & Climate

The state's air board issues new rules to automakers as part of its effort to cut greenhouse gases.California, long a national leader in cutting auto pollution, pushed the envelope further Friday as state regulators approved rules to cut greenhouse gas emissions from cars and put significantly more pollution-free vehicles on the road in coming years.

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