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Across America, clean energy plants are being banned faster than they're being built
(www.usatoday.com)
This is a most excellent place for technology news and articles.
Except physically speaking, that warmth from the motor is still just from the energy the wind has.. energy that would get transformed to heat from friction eventually anyway. It's just that this way we get useful work for our own purposes in the form of electricity.
Regardless of the source of rotation, all other aspects are the same as far as heat generation goes. That was the point I tried getting across to the people who were insisting to me that wind turbines cause climate change. Hydro, diesel engine, NG fire or nuclear driven steam turbines, wind turbine. They're all just spinning copper coils. Any heat from those would be the same.
The copper coils also had nothing to do with the heat in question anyway. The study was just showing turbulence could bring warm air to ground level. Honestly, sounds like wind turbines should be setup above frost sensitive crops like fruit trees. One bad frost during the tree's bloom could ruin a whole year's harvest.