While searching the internet, I noticed that I couldn't find a site for teens interested in helping stop climate change. There are sites for teens, sites about global warming, but no place focused on both.
If you have questions about global warming and how it works, post them here and everyone will lend there knowledge to answer it or to point you to a good source to find answers. Right away, I recomend the "The Science" section of Al Gore's site (http://www.climatecrisis.net/thescience/). It includes a short overview of what global warming is, as well as a fact "cheat sheet."
In addition to questions, Climate for Change is a place for discussion and debate. It's open to anyone so that anyone can post their opinions, so please be courteous to everyone- everyone is entitled to their own opinion, after all. And anyone is welcome to come- just remember that really, it's a place for teens, you "old folks" ;)