This month the Transamerica Pyramid, aka the most famous building in San Francisco, is now one of the most environmentally friendly buildings in the United States and has achieved a LEED-Gold certification.

Green building is really taking off in San Francisco and with new aggressive green building regulations in place for new construction and large retro-fits in the city this action is the largest in the nation. This year has also brought a five-fold increase of LEED certified square footage in San Fran and now has more green buildings then New York or Los Angeles.

Amplifying the great work already happening in San Francisco with energy, water efficiency, and zero waste initiatives, the Task Force in the city recommends that commercial buildings adopt a voluntary goal: cut total energy use in existing commercial buildings 50 percent by 2030.