A USA TODAY analysis of climate projection data shows that within two decades, climate change will have a significant but uneven impact on temperatures across the United States. The Gulf Coast could experience extreme heat increases, while parts of the northern U.S. could see dramatic warming. More Americans may be exposed to harmful effects of heating. Data from the Climate Impact Lab reveals that while the nation will warm overall, cooler regions may see a significant increase in temperatures. Hotter regions are expected to have more days above 90 degrees.
Counties with similar temperature increases were grouped into three categories: significant, moderate, and minimal warming. Regions like Alaska and the Great Plains are projected to experience significant warming, while coastal counties may remain cooler but face risks of flooding and extreme rainfall. Counties experiencing warm weather could have more days of dangerous heat within two decades, leading to increased heat-related deaths and illnesses. The impacts of climate change could affect food supplies, agriculture, and livelihoods in different regions of the country.
Experts warn that even areas not expected to warm significantly may still face climate-related dangers like flooding from rising sea levels. The best way to mitigate these effects is to reduce emissions, which can save lives and reduce the worst impacts of climate change. The projections highlight the urgent need for action to address and adapt to the changing climate across the United States.
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