By Deborah Zabarenko
Reuters

Old toothbrushes, beach toys and used condoms are part of a vast vortex of plastic trash in the middle of the Pacific Ocean, threatening sea creatures that get tangled in it, eat it or ride on it, a new report says.

Because plastic doesn't break down the way organic material does, ocean currents and tides have carried it thousands of miles to an area between Hawaii and the US West Coast, according to the study by the international environmental group Greenpeace.