U.S. Green Building Council

In March 2007, The U.S. Green Building Council summarized that The built environment plays a substantial role in the environmental health, human welfare, and economic stability of the United States. Building operation consumes 40% of U.S. energy and 71% of the electricity, 12% of the water, and rapidly increasing quantities of land. Building demolition, construction, and renovation generate 35% of non-industrial waste. Building operation accounts for 38% of the country’s carbon dioxide emissions.