What can Singapore tell us about urban sustainability?

Ken Hickson has been working in Singapore since the early 1980s. He published his first book on sustainability in 2009. In a weak moment, he would say "give up" because it is "like banging your head". But the moment quickly passes. In this inspiring podcast, Ken, who just celebrated his  77th birthday, talks about businesses which are bringing sustainability to the built environment in Singapore. He talks of his brand new project that he is working on for the London Design Festival and why the carbon embedded in the building materials is as important as the energy consumed inside buildings.