Prairie Power: In Oklahoma, One of the World’s Largest Wind Farms Just Began Spinning

Ninety years ago, Oklahoma was at the heart of the region torn apart by the Dust Bowl, a result of economic policies, shifting weather and overplowing that allowed the open plains’ high winds to sweep through and whip the earth into massive dust storms. Today those same winds are helping to bring that land back into productive use — and contributing to a cleaner atmosphere in the process.