Home > GACS Publications > GACS Publication Main
GREEN BUILDING & SUSTAINABLE DEVELOPMENT

Worldwide, buildings consume massive amounts of energy. The United Nations Environment Programme has reported that 30–40 percent of all primary energy produced worldwide is used in buildings. In 2008, the International Energy Agency released a publication that estimated that existing buildings are responsible for more than 40 percent of the world’s total primary energy consumption and for 24 percent of global CO2 emissions.