I didn't think it was possible either until I saw it, but it's true. I'm talking about a car that costs under $4,000 and absorbs carbon dioxide. The best part is, it's a car I already own.
That's right, I'm the proud owner of a used Ford Escort. The crazy thing is, this car hasn't always helped the environment. Sure, its 24/34 fuel economy is better than many cars' performance, but that's really just hurting the environment less. The thing still uses gasoline and still gobbles land to be parked somewhere.
I noticed it yesterday. Little sprouts were popping up between the back window and the edge of the trunk. You see, sometimes leaves get in there. Over time they decompose into a kind of soil. I guess nature found a way to make that into plant habitat.
My car is parked in the burbs (after all, storing lots of cars is what suburbs are really good at) since my apartment has no off-street parking. This works fine for me most of the time, since I live in a walkable neighborhood near good transit (Koreatown, baby) and don't commute very far. Since I don't really use my car anymore, and its plants are absorbing carbon dioxide, I guess that means it's actually helping to reverse climate change.
Beat that, Tesla Motors :)