The downside of wind energy

Phys.org:
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If we were to cover the entire Earth with wind farms, he notes, "the system could potentially generate enormous amounts of power, well in excess of 100 terawatts, but at that point my guess, based on our climate modeling, is that the effect of that on global winds, and therefore on climate, would be severe—perhaps bigger than the impact of doubling CO2."
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The good news is that the wind does not always blow.  What we do know is that alternative energy is not consistent.

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