What Is Green Building?

Green building is the practice of:

Environmental Impacts of Buildings

Buildings of the world consume:

Our buildings, and how we use them, have an impact on the Earth's resources.They also influence our own health: Most of us spend at least 90% of our time indoors, where the air is often twice -- and sometimes as much as a hundred times -- more polluted than outside air.

Green building in the United States

U.S. Green Building Council

The U.S. Green Building Council has developed some definitions of what constitutes sustainable design of green buildings through its Leadership in Energy and Environmental Design or LEED green building rating system. The USGBC is just one of the organizations in the World attempting to define what green building design should entail. The Green Building Council of Australia has its own green buildings standard known as Green Star

Legislation
In 2005, Washington State became the first state in the U.S. to enact green building legislation. According to the law (see article below), all major public agency facilities exceeding 5,000 square feet (465 m²), including state funded school buildings, are required to meet or exceed LEED standards in construction or renevation.

The projected benefits from such a law are