Sarah, I do consider myself an environmentalist, because I love to hike. That said, I do think global warming is almost completely a crock. (The one part of it that I do buy is that deforestation causes higher temperatures. Trees do serve as a heat sink for radiated light. Compare a shaded street with the parking lot of a busy mall at midday.)
I am all for habitat conservation, which the eco-commies have forgotten all about in their insane quest to end all oil exploration and outlaw all carbon. That means getting our overpopulation problem under control (both in the third world, where it is the worst, and here).