Which sustainable building certification system was the first to gain widespread international adoption and has certified over 100,000 buildings across more than 180 countries?

Sustainable design has become a cornerstone of modern architecture, with innovative approaches transforming how buildings interact with their environment. Major architectural firms are adopting various sustainability certification systems, but which one has had the most profound impact on changing industry practices worldwide? Test your knowledge of how sustainability initiatives are reshaping architectural product development and standards.

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LEED (Leadership in Energy and Environmental Design)
BREEAM (Building Research Establishment Environmental Assessment Method)
WELL Building Standard
Passive House (Passivhaus)