Global warming tops milestone ahead of climate summit

FILE - The Eiffel tower is illuminated in green with the words "Paris Agreement is Done," to celebrate the Paris U.N. Climate Change agreement in Paris, France, Nov. 4, 2016. FILE - A sign for COP29, the United Nations Climate Change Conference, is on display in Baku, Azerbaijan, Sept. 16, 2024.

2024 is likely to be the hottest year ever recorded, with global warming already exceeding the threshold of 1.5°C above pre-industrial levels, according to scientists, who released the latest data ahead of the COP29 climate summit due to start Monday in Azerbaijan.