When building or renovating buildings to be environmentally responsible, the architects and builders use the "LEED" standard. The Leadership in Energy and Environmental Design (LEED) Green Building Rating Systemô is a global third-party standard and certification program for sustainable green building and development practices. This has been developed by the non-profit The U.S. Green Building Council (USGBC). LEED Rating Systems are developed through an open, consensus-based process led by LEED committees.
LEED uses universally understood and accepted tools and performance criteria to help building owners and operators assess their buildings' environmental impact and performance. LEED promotes a whole-building approach to sustainability and looks at five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.
LEED is also used by architects, real estate professionals, facility managers, engineers, interior designers, landscape architects, construction managers, lenders and government officials to improve environmental sustainability. All levels of government across the country are adopting LEED for public-owned and public-funded buildings; and LEED projects are in progress in 41 different countries, including USA, Canada, Brazil, Mexico and India.