Melbourne, Australia's Council House 2, or CH2, has set a new standard for sustainable building design. While it employs established sustainable technologies, like energy and water conservation, the design includes many features that enhance the quality of the indoor environment.

"e²: the economies of being environmentally conscious" is an ongoing PBS documentary series about solutions to the world's most pervasive environmental challenges. The series continues its flagship coverage of sustainable architecture with "e² design season three," featuring innovations in green building and planning from around the globe. Check your local PBS listings for television broadcast dates in your area.

The "e²" series and its video podcasts are produced by kontentreal, and distributed within the United States by PBS. More information is available at pbs.org/e2/ and e2-series.com/