1.5°C global warming overshoot leads to irreversible climate impacts, emphasizing the urgency for immediate emissions reductions.

A new study published in Nature warns that temporarily exceeding the 1.5°C global warming limit can lead to irreversible climate impacts, such as rising sea levels and thawing permafrost, lasting for centuries. It challenges the belief that overshooting could be easily reversed, emphasizing the urgency for immediate emissions reductions. Current pledges may lead to nearly 3°C warming by 2100, necessitating net-zero emissions by 2050 to avoid severe consequences.