The thing about science is that it's inherently conservative. When science is telling you that horrible things are going to happen, you shouldn't be wondering if they're right. You should be wondering how much worse it might actually be.

Sea level rise is a game of inches. It doesn't take many inches to create miles and miles and miles of problems. And it's going to take decades to address those problems, so we might as well get started now.

One relatively "easy" thing to do would be to figure out how we're going to condemn and demolish all private housing built too close to the ocean. Restore those areas to something approaching a natural environment.

Since any solution we devise will be litigated for years, possibly decades (which we don't have), we should probably start now.

But...

We won't. We'll wait until it's too late. I mean, it's already "too late," but we could do a lot of stuff to make it less worse. But we're too selfish, too pig-headed, too blind, too cowardly to do anything, until it's too late.