Associated Press: China has changed course and emerged as a leader in curbing greenhouse gas emissions six years after it was accused of obstructing the last high-level climate talks in Copenhagen.
Heading into this month's Paris meeting, the world's biggest source of climate-changing gases has yet to accept binding limits. But it has invested in solar, wind and hydro power to clean up its smog-choked cities and curb surging demand for imported oil and gas. That contributed last year to a surprise fall in coal...