Japan Mulls Massive, 250-Mile Sea Wall To Fend Of Tsunamis
Four years after a towering tsunami ravaged much of Japan’s northeastern coast, efforts to fend off future disasters are focusing on a nearly 400-kilometer chain of cement sea walls, at places nearly five stories high. Opponents of the $6.8 billion plan argue that the massive concrete barriers will damage marine ecology and actually do little to protect residents who are mostly supposed to relocate to higher ground.