Just how much plastic is there floating around in our oceans? Dr Erik van Sebille from UNSW's Climate Change Research Centre has completed a study of ocean "garbage patches", and has found that in some regions the amount of plastic outweighs that of marine life.MORE INFO:http://iopscience.iop.org/1748-9326/7/4/044040UNSW Climate Change Research Centre:http://iopscience.iop.org/1748-9326/7/4/044040Sound effects provided byfreeSFXhttp://www.freesfx.co.uk