Final answer:
LEED is voluntary, market-driven, and consensus-based but not privately funded; it was developed by the nonprofit USGBC, which relies on membership dues, donations, and certification fees.
Step-by-step explanation:
The LEED (Leadership in Energy and Environmental Design) Green Building Rating System is indeed voluntary, market-driven, and consensus-based.
However, it is not privately funded. LEED is a publicly available standard that provides a framework for healthy, highly efficient, and cost-saving green buildings. It is developed by the U.S. Green Building Council (USGBC), a nonprofit organization, which operates on membership dues, donations, and fees for LEED certification.
LEED certification offers several levels of certification for building projects based on points achieved in various sustainability categories. This system encourages builders, architects, and developers to incorporate green design and construction practices in order to achieve a higher LEED status, thus promoting sustainability in the built environment.