The sight of discarded plastic bottles and bags floating in the open drains of Nigeria’s megacity Lagos moved visual artist Adeyemi Emmanuel to despair.

SAN FRANCISCO, June 23: A floating device designed to catch plastic waste has been redeployed in second attempt to clean up a huge island of trash swirling in the Pacific Ocean between California and Hawaii.

NEW YORK, May 14: On the deepest dive ever made by a human inside a submarine, a Texas investor and explorer found something he could have found in the gutter of nearly any street in the world: trash.