NASA | Projected U.S. Precipitation Changes by 2100

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According to new climate projections from the draft National Climate Assesment, the southwestern U.S. could be a lot drier by 2100, while the northeastern U.S. could be a lot wetter. The low- and high-carbon-emission scenarios project that dry regions get drier and regions that see more rain and snow would see that trend increase. The scenario with lower emissions, in which carbon dioxide reaches 550 parts per million by 2100, projects more subtle changes. The scenario with higher carbon dioxide emissions projects changes in average annual precipitation of 10 percent or more in some regions. Credit: NASA Explorer