http://news.bbc.co.uk/2/hi/in_depth/8639769.stm

It is easy to assume that if we make a mess, we can simply clean it up. However, this is not always the case, as shown in this disturbing video, where a Hawaiian beach is slowly turning into plastic. The video introduces us to the Great Pacific Garbage Patch, a huge collection of plastic waste that has gathered in the Pacific Ocean. As the waste is weathered, it does not break down, but simply gets broken into smaller and smaller pieces. Some of this plastic gets deposited on land, and the smaller parts become mixed in with beach sand. On the beach in question, there is no way to separate out the sand from the waste, presenting a seemingly unsolvable ecological disaster. Efforts to pick up larger pieces of garbage have proved equally futile, as more simply washes ashore. On top of these problems, there is also the worrying issue of plastic being consumed by birds and marine animals, who either die as a result, or pass the toxins up the food chain.

This video really drives home to what a great extent we have despoiled our planet.