Tsunami trash a long-term hazard

Mar 15, 2013

Tsunami trash a long-term hazard

by Richard Ingham

The tsunami that ravaged Tohoku in March 2011 swept some 5 million metric tons of shattered buildings, cars, household goods and other rubble into the sea. About 3.5 million metric tons, according to official Japanese estimates, sank immediately, leaving some 1.5 million metric tons ...