“HotHouse at the Sydney Opera House, 27-28 July 2010, is a “collective experiment” initiated and led by the National Institute for Experimental Arts (NIEA) at UNSW in association with Object: Australian Centre for Craft and Design and the City of Sydney.”

http://hothouselaunch.unsw.edu.au/

Also Check out the Urban Sketch Lab developed by Digital Eskimo, and use a digital sketching tool to express your ideas about re-designing urban space for a more sustainable lifestyle.

http://hothouselaunch.unsw.edu.au/sketch-lab/

Pip