A new international study has found that the world’s oceans absorbed more heat in 2025 than in any year on record, with ocean heat content reaching unprecedented levels in the upper 2,000 metres. Published in Advances in Atmospheric Sciences, the research links rising ocean temperatures to intensified extreme weather events

According to the report, heatwaves have become measurably more intense since the Paris Agreement was signed, with some events now up to 10 times more likely to happen than in 2015