Just a quick plug: a friend of mine, Sarah Pullman, is working on a terrific project, the DeSmogBlog, which aims to combat the corporate PR machine trying to eke out a few more years of rapacity before facing the inevitable climate change music. (Forgive the awkward metaphor; it’s late.)
And by the way, there’s a great little discussion going on at WorldChanging, where they’re trying to build the ultimate post to debunk climate change skeptics. Lots of handy links and resources, as well as a brief but telling digression on how to treat politically-motivated comment and trackback spam.