As Cop30 begins, what’s the latest in climate science?

With the pace of climate change speeding up, extreme weather and other impacts are taking an increasing toll on populations and environments across the globe. Here are some of the developments this year in climate science.
Warmer, faster
Global temperatures are not just climbing, they are now climbing faster than before, with records logged for 2023 and 2024, and at points in 2025. That finding was part of a key study in June that updated baseline data used in the science reports done every few…