How should we respond to rising sea levels?

I am not going to try and answer that question right now. I am just going to direct you to two thought provoking articles. The first is from the Washington Post about how the National Park Service is responding on Assateague Island.....basically let nature take its course and adapt (retreat) as needed....for link click The Old Man and the Rising Sea and scroll down to the article.

Glacier calving - Bill Fintel photo

For new data on the increasing rate of glacial melting in Antarctica, see Antarctic glacial melt rate triples in Amundsen Sea embayment