Or, This Is Why We've Foresworn Plastic Grocery Bags:

We heard about this on NPR the other day, and now Core77 has a post about it: Out in the Pacific, about 500 nautical miles off the California coast, exists a "plastic stew" -- a rubbish swamp larger than the continental U.S., full of plastic trash that's just swirling away in the ocean. Read the full story here. Something to consider next time a client asks you to design some kind of plastic thingy.