Sea level rise is a threat to low-lying coastal populations. Photo shows results of wave-driven flooding and overwash on Roi-Namur Atoll, Republic of the Marshall Islands. Photo: Peter Swarzenski, USGS. Public domain.

World Flood Mapping Tool

The World Flood Mapping Tool, developed by the UN University’s Institute of Water, Environment, and Health, aims to help countries with limited data construct flood maps.

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