The Make It Right Foundation - founded by celebrity activist Brad Pitt - made history in storm-ravaged New Orleans by placing 150 pink symbolic homes in the city's hardest hit neighborhood, the Lower Ninth Ward. Each of Pitt's pink houses represents a sustainable home that will eventually be built in its place as money is raised by the foundation. Thirteen architects from around the world were recruited by Make It Right to design innovative, affordable, sustainable housing, which would also ensure the strongest protection possible against volatile weather.

"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/