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A less mighty wind

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Wind turbines wring energy out of a free-flowing fuel supply that may be losing some of its punch. Surface winds appear to be weakening across the Northern Hemisphere, including in the United States, Western Europe, and China-the world's top three markets for wind power. And climate change threatens to weaken them further during this century as faster warming over northern latitudes trims the temperature gradients that energize airflows.

Published in:

Spectrum, IEEE  (Volume:48 ,  Issue: 1 )