Doing without
Participant: No Impact Man (and his long-suffering family)
Hypothesis: That even a New Yorker can live so (s)he has little-to-no impact on the environment. Or possibly, that someone who tries to live this way and is media-savvy enough can make a shitload of money off their book deal and the movie tie-in. It's hard to separate out this guy's motivations.
Summary: The family has given up using cars, public transport, lifts, electricity, plastics, and... toilet paper. (But not book or movie deals. Did I mention that already? Maybe I'm just jealous.) Their kitchen is like the eat local experiment on steroids.
The experiment seems to be working for the family so far. There's a lot more info on the philosophical motivation behind their choices, on environmental issues in general, and also on their day-to-day lives on the blog. And did I mention there's going to be a movie?