Many coastal cities do flood, right now, but this is mainly due to more people living on the coast in areas with lax engineering codes. Panic probably won't com

Many coastal cities do flood, right now, but this is mainly due to more people living on the coast in areas with lax engineering codes. Panic probably won't come until building sea walls any higher becomes too expensive in areas where sea walls and other tide restricters are required. I'd wait until a few man-made islands go under water to be sure.