[Mike Darancette]

Don't the climate fanatics worry that diverting and slowing the prevailing wind patterns will cause; a) climate change, b) changing the earth's rotation or c) heating by compression?

[saganite]

I saw a report that said massive use of windmills does indeed have climate altering effects because the air is heated as energy is extracted. On a small scale there will be micro climate effects in the vicinity of a large windmill farm and on a macro scale there will be significant atmospheric heating. There is no free lunch.