Buildings are a major component of the current global warming problem.  The following is a quote from the Architecture2030.org website.

“Data from the U.S. Energy Information Administration illustrates that buildings are responsible for almost half (48%) of all GHG emissions annually. Seventy-six percent of all electricity generated by US power plants goes to supply the Building Sector. Therefore, immediate action in the Building Sector is essential if we are to avoid hazardous climate change. ”

The Architecture2030 website is a wonderful source of information and a challenge to the architectural community to help solve the problem.