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Climate Resources

Trusted organizations, research, and tools for understanding climate science and action

Effects of Human-Caused Greenhouse Gas Emissions on U.S. Climate, Health, and Welfare

A new report from the National Academies of Sciences, Engineering, and Medicine says the evidence for current and future harm to human health and welfare created by human-caused greenhouse gases is beyond scientific dispute.

Smoke rising from smokestacks at a power plant.

Fifth National Climate Assessment

This 2023 report — congressionally mandated every four years — is the most influential source of information about how climate change affects the United States. The Trump administration has halted work on the next edition.

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AR6 Synthesis Report: Climate Change 2023

This report from the Intergovernmental Panel on Climate Change (IPCC) summarizes the state of knowledge of climate change, its widespread impacts and risks, and climate change mitigation and adaptation.

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Center for Climate, Health, and the Global Environment

The latest research, fact sheets, and visuals on climate and health from the Harvard T.H. Chan School of Public Health.

Climate Action at Harvard

Learn how schools across Harvard are advancing research to create real-world climate solutions.

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