Highest Sea Level Rises in U.S. are in Texas and Louisiana, Annual Report Finds by Dr. Jeff...

Texas and Louisiana have the highest rates of sea level rise in the U.S., with Grand Isle, Louisiana (7.75 mm or 0.305 inches per year) topping the list, according to the annual sea level “report card” from researchers at William & Mary’s Virginia Institute of Marine Science. Rockport, Texas (south of Galveston) had the highest acceleration rate (0.240 mm/year2), due to rising seas combined with subsiding land (caused by such things as natural geological processes, ground water pumping, and oil industry activity).