As the world's glaciers are melting away and seawater expands due to global heating, the water that flanks New York City has risen by about nine inches, or 22 CM since 1950, and major flooding events from storms could be up to four times more frequent than before by the end of the century. That again due to the combination of sea level rise and hurricanes, which are strengthened by climate change. A deeply concentrated population of 8.4 million people faces varying degrees of hazard from the inundation in New York City