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Related Experiment Video

Updated: Apr 15, 2026

Simulating Impacts of Ice Storms on Forest Ecosystems
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Weather forecasts become more important for reducing mortality as the climate warms.

Jeffrey G Shrader1, Stephan Thies1, Laura Bakkensen2

  • 1School of International and Public Affairs, Columbia University, New York, NY 10027.

Proceedings of the National Academy of Sciences of the United States of America
|April 13, 2026
PubMed
Summary

Improving weather forecasts can significantly reduce heat-related deaths. Better temperature predictions by 2100 could save thousands of lives annually, aiding climate change adaptation efforts.

Keywords:
climate changeearly warningforecastsmortality

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Area of Science:

  • Environmental science
  • Public health
  • Climate science

Background:

  • Extreme heat events are increasing in frequency and severity due to climate change.
  • Heat exposure is a primary cause of weather-related mortality globally.
  • Accurate temperature forecasts are crucial for public health adaptation strategies.

Purpose of the Study:

  • To quantify the potential mortality benefits of improved temperature forecast accuracy in the United States.
  • To project the impact of enhanced forecasts on heat-related deaths by the year 2100.
  • To assess the role of forecast improvements in climate change adaptation.

Main Methods:

  • Causal inference methods were used to estimate the relationship between temperature forecast accuracy and mortality.
  • Expert projections of future forecast accuracy were integrated with mortality impact estimates.
  • Analyses were conducted for the United States under various climate change and forecast improvement scenarios.

Main Results:

  • Improving short-run temperature forecasts could reduce annual heat-related mortality by approximately 18% by 2100.
  • Optimistic projections for forecast improvements suggest a potential reduction of around 25% in heat-related mortality.
  • These reductions translate to thousands of lives saved annually.

Conclusions:

  • Enhanced temperature forecast accuracy is a vital tool for mitigating heat-related mortality.
  • Investments in earth observation and modeling can yield substantial public health benefits.
  • Improved forecasts are essential for effective adaptation to a warming climate.