Which architectural sustainability certification system was first established and has become the most widely used green building rating system worldwide?

Sustainable design has become a cornerstone in modern architecture, with numerous certification systems measuring environmental performance. These systems help architects create buildings that minimize negative environmental impacts while maximizing occupant comfort and resource efficiency. Test your knowledge about one of the most influential sustainability initiatives in the architectural world!

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LEED (Leadership in Energy and Environmental Design)
BREEAM (Building Research Establishment Environmental Assessment Method)
Living Building Challenge
WELL Building Standard