Continents of garbage adrift in oceans and nobody is working on it

clipped from www.canada.com As much as 10 per cent of plastics produced end up inside giant marine vortexes The best-known patch, known by some as the Great Pacific Ocean Garbage Patch, consists of an estimated 100 million tonnes of plastic debris that has accumulated inside a circular vortex of currents known as the North Pacific gyre. Environmentalists call it the Pacific Trash Vortex. It is estimated to be anywhere from 700,000 square kilometres -- an area larger than Alberta -- up to 15 million square kilometres (the size of two Australias), depending on how it is measured An estimated 100,000 marine mammals die each year from eating or being entangled in debris -- mostly plastic -- in the North Pacific alone. Hence the vortex's other nickname: the Plastic Killing Fields. Ocean currents and winds are slowly bringing debris -- estimated to be 10 per cent of the world's plastic production -- to the centre of five major ocean gyres in the North and South Atlantic, North and South Pacific and the Indian Oceans