Extreme heat is one of the deadliest consequences of climate change.

10/7/21 Between 2010 and 2019, the hottest decade on record, California’s official data from death certificates attributed 599 deaths to heat exposure.
But a Times analysis found that the true toll is probably six times higher. An examination of mortality data from this period shows that thousands more people died on extremely hot days than would have been typical during milder weather. All told, the analysis estimates that extreme heat caused about 3,900 deaths.