For example, in land use, which areas do you want to protect, through adding a seawall, for example, alter, by raising buildings, or retreat from, to allow the migration of important natural systems, such as wetlands or beaches?

But, in many areas, the Tohoku tsunami overflowed and even destroyed these protective structures including the seawall at the Fukushima Daiichi nuclear power plant in northern Honshu. As a result, the plant s three active reactors suffered near meltdowns, leading to a buildup of hydrogen gas, a series of explosions and fires, and leakage of radioactive material into the atmosphere.