How do I respond to people saying houses near the beach will be underwater soon?

[QUOTE=Christopher]
Even absent global warming, isn’t shoreline erosion enough reason not to build on the shore. It seems to me that shorelines are awfully dynamic.
[/QUOTE]

Absolutely. The storm off the southeast U.S. coast for the last three days did this in North Carolina.

http://www.wilmingtonstar.com/apps/pbcs.dll/article?AID=/20070510/NEWS/70510004/1004/news01

Christoper said it before I could. Beach erosion is absolutely no joke. It is a serious threat to the seaside homeowner.