Global warming will make the oceans rise 39" and the rise cannot be stopped. Where will we go?

This rise in sea level will effect San Francisco, New York, Silicon Valley, Kennebunkport, Florida, Texas and that is only in the USA. All this per the Intergovernmental Panel on climate change in Paris, Seth Borenstein of ociated Press, University of Arizona in conjunction with the US Geological Survey, Lawrence Livermore National Lab in California. Is it time to buy beachfront property in Arizona?