Overshoot is not an off-ramp: What exceeding 1.5°C means for cities

“Under current trajectories, sustained exceedance of 1.5°C is now expected,” reveals the UN Environment Programme’s new Overshoot Report. But crossing 1.5°C does not mean the target no longer matters, nor would returning below it erase the consequences of the crossing. How does this change the game for urban climate action?

https://mailchi.mp/iclei.org/inews-9-september-2026?e=8ccdcf7510