Eating your roof
Can you imagine ingesting food grown from your roof?
Well, its not too hard to imagine, as its already happening in cities around the world and cutting down energy costs to almost half, tackling food shortage and an added bonus for climate change.
Reporters Siqi Yuan and Annamarie Reyes got curious and looked at the specs with Dr Sumita Gosh who knows a lot about cities and sustainable urban design.
Image by Kieran k Meadows at e-bad flickr.com