Record Beach Litter Threatens Marine Wildlife UK: April 10, 2008 LONDON - Plastic litter on Britain's beaches has reached record levels, endangering whales, dolphins and seabirds, an environmental charity survey said on Thursday. The Marine Conservation Society, which campaigns for cleaner beaches and seas, said plastic litter has increased by 126 percent since its first survey in 1994. Scores of marine wildlife species, including seals and turtles, have died after eating plastic or drowning after getting tangled in debris or old fishing nets, it said.