LOS ANGELES — Volunteers who patrol California beaches for plastic, cigarette butts and other litter will be on the lookout this winter for flotsam from last year’s monstrous tsunami off Japan’s coast.
Armed with index-size cards, beachcombers will log water bottles, buoys, fishing gear and other possessions that might have sailed across the Pacific to the 1,100-mile shoreline.
The March 2011 disaster washed about 5 million tons of debris into the sea. Most of that sank, leaving an estimated 1 1/2 million tons afloat. No one knows how much debris — strewn across an area three times the size of the United States — is still adrift.