BEIJING—China’s unbridled ambitions for clean energy led to the construction of two wind turbines every hour in recent years. Now, there is a new demand: slow down. In the U.S., President-elect Donald Trump has been extolling the virtues of coal. But China, which suffers from crippling air pollution, has promised the world it is shifting toward...

Source: Wall Street Journal December 04, 2016 12:03 UTC