NYT: As the United States contemplates a clean-energy future, leadership is coming from a surprising place – Texas. This state is well-known for producing oil and natural gas. But Texas also has erected far more turbines than any other state and now has nearly three times as much wind capacity as Iowa, which is ranked second. Forests of turbines have sprouted atop remote, scrubby mesas. If Texas were its own country, it would generate more wind power than all but five nations – the United …