How is it that the (Lil) Green Patch application on FaceBook is saving the rainforest?

[O]

Isn't there an easier way? Why can't we all just sign a petition?
Be as detailed as possible.

Oh yeah, and whose to say that the rainforest is really being saved by this application?

[scubadiver]

I honestly don't know how this works, but my guess is that it actually doesn't. It is probably just something that you add in order to make you FEEL like you are doing something, when in reality it doesn't actually do anything...