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New flood models predict repeat, and possibly more significant, flooding in areas hard hit by Sandy. Five key lessons are offered to guide rebuilding:

1. Protect existing natural borders such as beaches and dunes.
2. Build the natural barriers higher.
3. Rezone flood areas to prevent new home building. Build parks in their place.
4. Be mindful about building barriers such as sea walls that are expensive and may cause damage to other homes.
5. Teach coastal residents hurricane survival skills.

Hurricane Sandy Lesson: Don’t Rebuild in Vulnerable Areas