Climate & Weather When was the worst heat wave in history? February 5, 2026 by Tanp | Leave a Comment When discussing the worst heat wave in history, it’s essential to consider both the scale of impact and the duration of extreme temperatures. The 2003 European heat wave is often cited as one of the deadliest, with an estimated 70,000 deaths across the continent, highlighting the severe human and environmental consequences of such extreme weather […] Read more ยป