Commentary

How U.S. Companies are Investing in Renewable Electricity

by AMY DAVIDSEN

The United States finds itself facing a clean energy revolution, spurred not by politics, but by good business sense. And that changes everything.

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The Science is Settled

by SCOTT DENNING

“Heat in – heat out = change in heat.” Every climate change inferred from the geologic record is explained by this simple statement of the conservation of energy.

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