Medicine

Climate Change Health Harms Escalate Over Decade, Reaching Critical Point

How the science connects

Climate changePublic health

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The 2026 Lancet Countdown report documents a decade of increasing health harms directly attributable to climate change, marking what the authors identify as a critical decision point for global action. The report synthesizes multiple health indicators tracking the impacts of rising temperatures, extreme weather events, infectious disease patterns, and environmental degradation on human populations worldwide. This represents the latest installment in an ongoing series monitoring the intersection of climate change and public health outcomes.


The report provides policymakers, healthcare systems, and public health officials with evidence-based data to inform climate adaptation strategies and health system preparedness. Understanding the accelerating health impacts of climate change is essential for allocating resources, developing intervention programs, and implementing preventive measures to protect vulnerable populations.


For the French, Arabic, Spanish, Brazilian-Portuguese and Mandarin translations of the abstract see Supplementary Materials section.

Source: [Countdown] The 2026 report of the Lancet Countdown on health and climate change: a decade of escalating health harms and a decisive moment for all