Want to improve the health of people your 'hood? Just clean and green the vacant lots, says new study

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Rock star went undercover with Greenpeace to protest Arctic drilling

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Smartly designed, salvaged wood doghouse sports a green roof

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When supply outstrips demand, utilities look to consumers to help stabilize power grid

Young Chinese photographer shoots gauzy and ethereal images of nature

Interactive map shows the clean energy jobs of today and tomorrow