The mystery was alarming to wildlife experts: large numbers of dead bats appearing at wind farms, often with no visible signs of injury.
Researchers now think they know one reason: Wind turbines cause bats’ lungs to explode. More specifically, a sudden drop in air pressure created by the blades can cause fatal internal hemorrhaging, researchers at the University of Calgary said in a study.
The toll taken on bats highlights a delicate balance facing the wind industry—how to be “green” without causing other unintended environmental consequences.
Like killing birds and bats.
Since then, the chorus of voices calling for greater protection for bats at wind farms has grown louder. Last summer, the American Society of Mammalogists called for wind farms to avoid “bat hibernation, breeding and maternity colonies.”
Thus reducing the number of places to put them, and on top of that
The cooperative has been looking for ways to bring down the death toll, including studies of the effectiveness of ultrasonic sounds that would deter bats and curtailing the spinning of turbines until it’s too windy for bats to fly.
Which reduces the time you can actually use the damn things, thus reducing their efficiency even further.
Found over at Tim Blair