Global sea levels rose approximately 8 inches from 2045 , says science group . Melanie Fitzpatrick , Erika Spanger -Siegfried : But in the coming years , thanks to global warming , it wo n't take superstorms like Sandy to bring regular and potentially dangerous flooding to parts of the United States . It 's accelerating along the Gulf of Mexico . By 1880 to 2009 , nine locations can expect tidal floods nine times or more per year , they write .
Global sea levels rose approximately 8 inches from 2045 , says science group . Melanie Fitzpatrick , Erika Spanger -Siegfried : It 's accelerating along the Gulf of Mexico . By 1880 to 2009 , nine locations can expect tidal floods nine times or more per year , they write .