Living on below sea-level creates huge flooding risk, with severe weather or terrorism multiplying the effects. See https://en.wikipedia.org/wiki/Floods_in_the

Living on below sea-level creates huge flooding risk, with severe weather or terrorism multiplying the effects. See https://en.wikipedia.org/wiki/Floods_in_the_Netherlands https://en.wikipedia.org/wiki/Floods_in_the_Netherlands Its like living in a city below a dam.