Two proposals unveiled earlier this month tiptoe into the fraught territory of what's called Managed Retreat.
The geography of where rising sea levels will likely cost us the most.
Dating back to the 1890s.
A new study paints an especially grim future for coastal cities like New York, Boston, and Miami.
Water is now rising at a faster rate off the New Jersey coast than at any point in 6,000 years.
The summer melt in 2012 alone added a millimeter to the global sea level.