Here's a little known fact...
From the November 2008 issue of Smithsonian magazine:
Multitudes of bats die around the world each year when they migrate through electricity-generating wind farms. University of Calgary researches now say the main cause of death is "barotrauma": the turbines' large revolving blades create low-pressure zones that cause bat lungs to suddenly over-expand, tear and bleed.
How long until the environmentalists seek to tear down the wind farms?
(And yes, the headline is a Cliff Clavin reference. I'm working my way through Cheers on DVD.)