In a boost for hopes of curbing global warming, a new study has found China's greenhouse gas emissions will probably peak in 2025, five years earlier than its stated target.
The study was done by two research institutes at the London School of Economics.
Its authors have concluded that on current trends, the world's biggest carbon emitter will discharge between 12.5 and 14 billion tonnes of carbon-dioxide-equivalent in 2025, after which emissions will decline.
They said this suggested it was increasingly likely the world would avoid global warming of more than two degrees above pre-industrial levels.
Two degrees is the upper limit targeted by the United Nations, which is seeking to enshrine the goal in a global accord in December.