Global average sea level has risen about 8 inches since 1900, driven by expansion of the warming ocean, melting of mountain glaciers, and losses from the Greenland and Antarctic ice sheets. This rise has caused coastal cities to see an uprising in flooding, both during storms and as “sunny-day” flooding from tides alone. These flooding events disrupt economies, make it difficult to deliver emergency services, and disproportionately affect older, and low socioeconomic status populations.