More than a million homes and businesses along the nation’s coasts could flood repeatedly before ultimately being destroyed. Entire states in the Southeast and the Corn Belt may lose much of their agriculture... “The big ice sheets are melting; something’s happening,”... "...we’re at a tipping point with the planet,” "...limate change is the existential issue of our age,” ...a team of experts who carried out the risk analysis... ..the global sea level could increase roughly a foot by 2050, and double or triple that by century’s end. A rise of as much as six or eight feet cannot be entirely...