Check out this video how plastic is polluting our oceans and beaches. In one part, it shows how a baby albatross had been fed like 20 plastic knick knacks. http://www.ted.com/index.php/talks/capt_charles_moore_on_the_seas_of_plastic.html Recycle your little pop bottles (or better yet, stop drinking it all together), and you can bring your plastic grocery bags back in to be re-used.