Handful of cities driving urban greenhouse gas emissions: Study

Average global temperatures have already risen by more than 1 degree Celsius compared to the pre-industrial baseline and are still on track to exceed the 1.5-2 degree limit set by the Paris Agreement.

Just 25 big cities – almost all of them in China – accounted for more than half of the climate-warming gases pumped out by a sample of 167 urban hubs around the world, an analysis of emissions trends showed on Monday.