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National Academies back extreme‑event attribution science

scienceJul 16, 202648408

The U.S. National Academies of Sciences, Engineering, and Medicine released a landmark report endorsing extreme-event attribution science, concluding that human-induced climate change has "a direct and well-understood impact" on extreme heat and rainfall and that attribution methods can link heatwaves and wildfires to climate change. The report says tools, observations, and methods have advanced rapidly, enabling some event attributions to be completed within days. Researchers and outlets including The New York Times and Bloomberg reported the assessment could strengthen legal and policy uses, for example by supporting lawsuits seeking damages from fossil fuel companies. The report drew scrutiny and pushback from industry allies ahead of its release, and a proposed House bill to grant fossil fuel liability protections cites attribution science as lacking credibility and now has 20 co-sponsors. Committee membership included Kelvin Droegemeier, who served on the panel producing the assessment. The National Academies framing shifts the science from a debated research niche toward a practical tool for courts, regulators, and policymakers evaluating responsibility and damages from extreme weather events.

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