Extreme Heat
Extreme heat is a widespread and escalating global health, economic, and environmental hazard. The supplied evidence documents substantial mortality, lost labor productivity, health costs, and agricultural losses, with impacts expected to worsen as temperatures rise.
Severity score
85.1
Catastrophic · default weighting
Trajectory
Steady
What this is
Score breakdown
Each factor is a 0–100 relative severity index, not the raw figure or a specific time period. The actual counts and periods are listed under "Standardized Impact" on the right.
Loss of life
78Direct and attributable mortality, normalised across annual and cumulative tolls.
Lives negatively impacted
92People displaced, injured, food-insecure, exposed or otherwise materially harmed.
Financial cost
91Direct damage, lost output and health-system spend attributable to the event.
Environmental impact
74Emissions, habitat and biodiversity loss, contamination and irreversibility.
Trajectory
94Whether the situation is escalating, and how much worse it is plausibly getting.
Audit trail
Everything this entry has been through — when it was first searched for, queued, reviewed and approved, and how its figures and rank have moved since.
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