The Kyoto Treaty....read all about it!

So if you don't know all about the Kyoto Treaty or just want to read about it a little, here's a good link:

http://www.npr.org/templates/story/story.php?storyId=4501636

Strange that the US didn't sign the treaty...I wonder whose smart idea that was (I have my ideas...but this isn't a political blog). Anyone have any thoughts on that?