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Three of the following are typically no regrets coastal measures. Which is the odd one out?

  • A.restricting any new development within the zone at risk of erosion
  • B.maintaining and improving flood warning systems
  • C.constructing a large fixed seawall for the worst case
  • D.improving the monitoring of shoreline change

Answer: C

A large fixed structure is expensive and forecloses later options. The other three are worthwhile whatever the future actually turns out to be. A large fixed structure is the opposite case. No regrets measures cost little and foreclose nothing.

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