Which architectural firm created and launched the LEED (Leadership in Energy and Environmental Design) certification system that revolutionized sustainable building practices?

Sustainability has become a cornerstone in modern architectural practice, with various certification systems measuring environmental impact. The LEED (Leadership in Energy and Environmental Design) certification system remains one of the most influential sustainability initiatives in architecture. Test your knowledge about this important green building rating system that has shaped how architects approach sustainable design worldwide.

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The American Institute of Architects (AIA)
The U.S. Green Building Council (USGBC)
Foster + Partners Sustainability Division
The Royal Institute of British Architects (RIBA)