The amount of plastic littering British beaches is at its highest level since records began, according to the Marine Conservation Society. Nearly 4,000 volunteers scoured Britain's beaches as part of the survey (Copyright T Fanshawe) The organisation's Beachwatch 2007 Report shows that plastic litter on beaches has increased by 126% since the annual survey began in 1994. MCS campaigners say the rise is threatening marine wildlife which mistakes the plastic litter for food or becomes entangled in the debris.