The U.S needs to take immediate action toward ending human contribution to climate changes. The 2014 IPCC report is a scathing assessment, combining the scientific expertise of the world's leading climate scientists. Sea level rise will happen, we must adopt adaptation and mitigation strategies. When, not if.
IPCC 2014: http://ar5-syr.ipcc.ch/
"...driven largely by economic and population growth, and are now higher than ever. This has led to atmospheric concentrations of carbon dioxide, methane and nitrous oxide that are unprecedented in at least the last 800,000 years"
"Coastal systems and low-lying areas will increasingly experience submergence, flooding and erosion throughout the 21st century and beyond, due to sea level rise"
We can not refute science on this matter any longer.