Associated Press: It’s not just hot air: the United States now leads the world in wind power after boosting wind energy capacity by half last year, the Global Wind Energy Council said Monday. The U.S. overtook Germany by building windmills that can generate 25 gigawatts of energy, about a fifth of all global wind power, it said. Surging interest in renewable energy and worries about climate change propelled a 29-percent increase in wind power generation capacity across the world last year — and …