Voice of America: China is battling air pollution and high costs for imported energy with an aggressive focus on renewable energy. Workers build a highway near a wind farm in the Gobi desert, in China’s northwest Gansu province (File)China’s government says it will have 100 gigawatts of wind-power capacity by 2020 – enough to power more than 60 million homes. That figure is more than three times the target the government laid out just 18 months ago. Steve Lyons is the director of CWE Renewables, …