Beginning this Saturday, April 21, 2007, at 8 PM (ET/PT), Animal Planet debuts Spring Watch USA, a four-week, as-it-happens, multi-media, nationwide event. Filmed just prior to broadcast, this miniseries is a celebration of the arrival and beauty of spring across the nation. Hosted by Jeff Corwin (The Jeff Corwin Experience, Corwin’s Quest) and Vanessa Garnick (Caught In The Moment), viewers learn about the amazing mammals, birds and insects that herald the arrival of spring.I don't know if there will be any climate change promos in this but the Animal Planet shows that I have watched have been pretty good about keeping nature and politics apart.
I am recommending this series because it looks initially like it could be a positive, uplifting, life-on-this-earth-is-good kind of documentary. There is promotional material here which includes 3 very short videos. (although I had some trouble with the sound I hope you don't.)