U.S. main stream media so far slow to respond:
Large windfarms can increase local night time temperatures by fanning warmer air onto the ground, new research has revealed. The study used satellite data to show that the building of huge windfarms in west Texas over the last decade has warmed the nights by up to 0.72C. …
“West Texas has seen rapid expansion of windfarms, with turbine numbers rising from 111 in 2003 to 2358 in 2011. Zhou’s team compared the land surface temperatures at the windfarms with other areas across this period and detected a clear rise at night. …
The scientists say the effect is due to the gentle turbulence caused by the wind turbines. After the sun has set, the land cools down more quickly than the air, leaving a cold blanket of air just above the ground. But the turbine wakes mix this cold layer with the warmer air above, raising the temperature. …
“The result looks pretty solid to me,” said Steven Sherwood at the climate change research centre at the University of New South Wales, Australia. “The same strategy is commonly used by fruit growers, who fly helicopters over the orchards rather than erect windmills, to combat early morning frosts.”
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