
International climate pledges remain far off track to limit rising temperatures to 1.5 degrees Celsius, according to a report released by the United Nations Wednesday, less than two weeks ahead of high-stakes negotiations to tackle global warming.
The combined climate pledges of more than 190 nations that signed up to the 2015 Paris climate deal put Earth on track to warm by around 2.5 degrees Celsius compared to pre-industrial levels by the century's end.