In many parts of the world, including the United States, nuclear reactors are often located near the ocean, due to their requirement for abundant supplies of water for cooling purposes. And while tsunamis aren’t a threat everywhere, the sea can pose other challenges. Hurricanes, for example, can push walls of water ahead of them, like the storm surge that did most of the damage to New Orleans when Hurricane Katrina swept through in 2005.
Alyson Kenward writes about the threat from rising sea levels on the Natural Resources Defense Council On Earth blog.