The world is adapting to extreme heat, just not fast enough to keep up

Western Europe's heat waves this summer killed at least 35,000 people across five separate events. The World Health Organization called it a "dress rehearsal" for what's coming.

A UN report released last week confirms the world will overshoot the 1.5°C warming target within years, and 2027 is on track to be the hottest year on record — driven by both an ongoing El Niño cycle, predicted to be the strongest in a millennium, and continued greenhouse gas emissions.

Some places are adapting: France built air-conditioned nursing homes and early-warning systems after its deadly 2003 heat wave. But researcher Christopher Callahan estimates current adaptation measures would prevent only about one in ten heat-related deaths — and UN report author Kristie Ebi warns that even existing early-warning systems "were designed to manage" temperatures lower than what's now common.

Part of the problem is how heat actually kills: hazardous conditions start as low as 26°C (79°F) when humidity is high, straining organs well before classic heat stroke sets in. And infrastructure keeps failing in ways planners didn't anticipate — Portland's 2021 heat dome melted streetcar cables and warped bridges. The article's throughline: cities need to "stress test" for scenarios they haven't seen yet, not just repeat the last emergency's playbook.

Reporting by Kate Yoder for [Grist](https://grist.org/extreme-weather/the-world-is-adapting-to-extreme-heat-but-not-nearly-fast-enough/). Translated and adapted with attribution.