Earthrace Pod on Current.tv
I think this is a great pod because it highlights Biodiesel, the wave of the future (hopefully), and has some gorgeous shots of the Miami skyline. (I could do without the repetitive techno, but, hey, it's a Miami pod.)
You can view the pod below, but please go to their website, sign up for a quick and easy account, and give your greenlight to this and other worthy pods.
Also, I hope you're checking out GreenerMiami, who had a hand in creating this pod. They've got some wonderful stuff about local environmental issues over there. It's not easy being green in a city like Miami, so they need all the help they can get.