Lake Erie contains substantial quantities of tiny pieces of potentially toxic plastic

Prior posts have noted the great Atlantic and Pacific garbage patches. [See, for example, http://en.wikipedia.org/wiki/Great_Pacific_garbage_patch ; http://www.mnn.com/earth-matters/translating-uncle-sam/stories/what-is-the-great-pacific-ocean-garbage-patch ; &, http://news.discovery.com/earth/oceans...