‘Non-survivable’: heatwaves are already breaching human limits, with worse to come, study finds

New research analyzing six extreme heatwaves between 2003 and 2024 found that "non-survivable" conditions are already occurring for humans. Scientists determined that when accounting for temperature, humidity, and the body's ability to cool itself, all six heatwaves were potentially deadly for older people. This new study warns that people are more susceptible to rising temperatures than previously thought, with conditions already breaching human survival limits. The findings indicate that extreme heat has already killed thousands, and likely many more, due to these increasingly dangerous conditions.