Five years ago, Hurricane Katrina tore into Louisiana and Mississippi, causing such catastrophic destruction along the coast and in places like New Orleans that some cities and towns are still struggling to rebuild.

What some may forget is that four days earlier, Katrina made its first landfall in South Florida.

People there, though, haven't forgotten. In fact, some in Florida who lived through Katrina now are preparing for climate change-related disasters they fear could be more damaging than a hurricane.

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