For the third straight year, efforts to fight climate change haven't lowered projections for how hot the world is likely to get — and recent developments in China and the United States are likely to slightly worsen the outlook, according to an analysis Thursday.
The analysis comes as countries come together for the 29th edition of the United Nations climate talks, hosted in Baku, Azerbaijan, where nations are trying to set new targets to cut emissions of heat-trapping gases and figure out how much rich nations will pay to help the world with that task.
