I just watched a thought provoking video via the TED Talks podcast (iTunes link- it will open up iTunes and send you to the iTunes Store to ask you if you want to subscribe to the Podcast feed).

It was by Chris Jordan, an artist who:

Artist Chris Jordan shows us an arresting view of what Western culture looks like. His supersized images picture some almost unimaginable statistics — like the astonishing number of paper cups we use every single day.

You can view the individual talk here