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Health losses attributed to anthropogenic climate change.
Colin J Carlson1, Dann Mitchell2, Rory Gibb3
1Yale University School of Public Health, New Haven, CT USA.
Nature Climate Change
|October 10, 2025
Summary
Climate change significantly impacts global health, causing widespread death and illness. Current research disproportionately focuses on high-income nations, overlooking the broader worldwide health burden.
Area of Science:
- Environmental health
- Climate change impacts
- Public health research
Background:
- Attribution science increasingly links climate change to adverse health outcomes.
- Existing health impact studies are concentrated in high-income countries.
- Research has primarily focused on heat and extreme weather events.
Purpose of the Study:
- To highlight the global health burden of climate change.
- To encourage policymakers to address the climate crisis as a public health emergency.
- To broaden the scope of health impact attribution studies.
Main Methods:
- Review of existing attribution science literature.
- Analysis of geographical and thematic focus in health impact studies.
- Synthesis of evidence on climate-related health outcomes.
Main Results:
- Substantial death, disability, and illness are attributed to climate change globally.
- Disproportionate focus on high-income countries in current research.
- Limited quantification of health impacts beyond heat and extreme weather.
Conclusions:
- A comprehensive understanding of the global health burden is crucial.
- Addressing climate change as a public health emergency is warranted.
- Expanding research to diverse populations and climate impacts is necessary.
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