Abstract
This report reviews the current landscape of heat Early Warning Systems worldwide and presents ten recommendations to strengthen them. Priorities include embedding inclusive, community-led approaches; improving heat risk understanding across sectors; refining heat metrics and thresholds; and ensuring warnings lead to timely, coordinated actions through national and local Heat Action Plans. It also highlights the need for stronger governance, sustainable financing, and continuous learning. As climate change intensifies extreme heat, more robust and widely implemented systems will be critical to reducing preventable deaths, protecting livelihoods, and safeguarding essential services globally.
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| Issue date | 2026-05 |