BOSTON - Coast Guard Lt. j.g. Heidi Miller, from Coast Guard Sector Boston's Prevention Department and Camp Harbor View camper Cassandra, 12, flip a large piece of foam they found on the beach of Long Island in Boston Harbor during a beach clean-up July 23, 2008. Several pieces of foam were found on the beach, four of which were too large to fit in a garbage bag. The foam presents a hazard to marine animals and takes several years to biodegrade. (Coast Guard photo/Petty Officer 3rd Class Connie Terrell)