Climate change has tripled the frequency of atmospheric wave events linked to extreme summer weather in the last 75 years, a new study has found. It may explain why long-range computer forecasts keep underestimating the surge in killer heatwaves, droughts and floods.
In the 1950s, Earth averaged about one extreme weather-inducing planetary wave event a summer, but now it is getting about three per summer, according to the study in Monday's Proceedings of the National Academy of Sciences (PNAS) journal.
