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A University of Iowa study has found that the risk of flooding is changing in the United States, and the changes vary regionally. The threat of moderate flooding is generally increasing in the northern U.S. (red areas) and decreasing in the southern U.S. (blue areas), while some regions remain mostly unchanged (gray areas). The findings come from comparing river heights at 2,042 locations with NASA satellite information showing the amount of water stored in the ground.
© American Geophysical Union