Malaysia's international green building benchmark, the Green Building Index, is 15 years' old this year and was the brainchild of Pertubuhan Arkitek Malaysia and the Association of Consulting Engineers Malaysia. Dr Tan Loke Mun, a former president of the Malaysian Institute of Architects, played an important role in introducing the GBI, and he joins us to talk about its genesis, its evolution and where it is headed next.

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