Policy ForumClimate Adaptation

Evaluating Flood Resilience Strategies for Coastal Megacities

Science  02 May 2014:
Vol. 344, Issue 6183, pp. 473-475
DOI: 10.1126/science.1248222

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Recent flood disasters in the United States (2005, 2008, 2012); the Philippines (2012, 2013); and Britain (2014) illustrate how vulnerable coastal cities are to storm surge flooding (1). Floods caused the largest portion of insured losses among all catastrophes around the world in 2013 (2). Population density in flood-prone coastal zones and megacities is expected to grow by 25% by 2050; projected climate change and sea level rise may further increase the frequency and/or severity of large-scale floods (37).