I've just recently started trying to catch Penn & Teller: Bullshit! which airs on Thursday nights at 10pm on Showtime. It's Penn & Teller's version of Dateline or 20/20. To quote the show's website, "Penn & Teller's mission is to expose the truth to an otherwise desperate and gullible public."
The episode that Showtime just aired was their episode on Recycling. They brought up some very interesting points. The thing I like best about the site is that they do provide experts from both sides of the story—of course their object is to reveal the "truth" behind the "myths."
Check this show out if you get a chance, or at least check out Topics Archive for video previews and clips of the shows.