December

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Obama to federal agencies: triple use of clean energy by 2020

President Obama issued an executive order on Dec. 5, calling for an increase in solar, wind, and other renewable energy for federal agencies, to 20 percent by 2020 - three times more than the agencies currently use.

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Oil refinery waste piling up in Chicago

Residents on the southeast side of this city are complaining about smoke, but it's actually dust from an oil refinery, and it's drifting into many nearby neighborhoods.