Climate change is expected to have an uneven impact on temperatures in the United States over the next two decades, with significant increases in extreme heat projected for the Gulf Coast and northern parts of the country. A USA TODAY analysis of data from the Climate Impact Lab reveals that cooler regions could see a large increase in temperatures, while hotter regions will experience more days above 90 degrees. The findings show a trend of overall warming, but also highlight differences in how different parts of the country may be affected.
The analysis uses county-level temperature projections to assess changes in average annual temperatures and extreme heat from 2020 to 2040. The data suggests that even regions with historically cooler climates, such as northern Alaska, could experience significant warming. This could have consequences for agriculture, wildlife, and food supplies. Coastal counties may remain cooler due to ocean heat absorption, but they are still vulnerable to flooding and extreme weather events.
Counties in the warmer regions are projected to see more days of dangerous heat, which can have serious health implications, especially for vulnerable populations. It is crucial for communities to implement measures such as adding green spaces, installing air conditioning, and creating cooling centers to mitigate the effects of extreme heat. While adaptation strategies can help, reducing emissions now is key to preventing the worst impacts of climate change. Ultimately, the data underscores the urgency of taking action to address climate change and protect lives.
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