In May 2025, the World Meteorological Organization and the U.K. Met Office gave a new forecast. They said Earth will have more years of very hot weather. These temperatures may cause stronger and more dangerous weather events. There is an 80% chance that a new record heat year will happen by 2030. Experts also said there is an 86% chance that one year will go over 1.5°C above the old global temperature. This level was the goal of the Paris Agreement in 2015 to stop dangerous climate change. There is also a small chance that a 2°C rise will happen before 2030. That rise would be even more alarming and critical for the planet.

Experts explained how the heat can cause problems. There may be more heatwaves, strong rains, long dry seasons, and destructive wildfires. A hotter atmosphere can hold more water and energy. This makes these problems happen more often. The Arctic may become warm 3.5 times faster than other parts of the world. This will melt more ice and make sea levels rise faster. Climate scientists said that unprecedented heat may become normal. The forecast used over 200 computer simulations from climate research groups. The results are reliable, and they help people make better plans to stay safe. Climate action is now urgent and significant for all.