The Public Broadcasting Service (PBS), the independent member-supported news channel in the United States (something like BBC, CBC, etc), has been doing a series of absolutely amazing shows on global sustainability and environmental responsibility initiatives.
"e2" discusses the global "economies of being environmentally conscious." Season three is going on now and you can view the webcasts for upto a week after the original air-date. You can also subscribe to the podcasts here. I highly recommend watching them. Thus far, the first few shows have focused on green building and design - about how the failure of government and public support caused a community of some of the poorest communities in New Orleans to rally together and force even better quality buildings in their neighborhoods. The second talks about architect Renzo Piano's design of a green museum in San Francisco.
Soon they will start a series on ecological transportation, highlighting eco-transport programs from around the world that are both environmentally and financially savvy.
You can also view old shows from "e2 Energy" here. Topics cover energy solutions developed in Brazil, Bangladesh, the U.S, and much, much more.
Here's a trailer, to give you an idea of topics that are covered: