The term 'green' is notoriously difficult to define, and even more so when it comes to architecture. An often overused and fashionable way of describing (or selling) new projects, 'green' design seems to have permeated into every strand of the design and construction industries. Kaid Benfield (The Atlantic City) has put together a fascinating case study of a 1,700 dwelling housing estate near San Diego, challenging what is meant by a 'green' development in an attempt to understand the importance of location and transport (among other factors) in making a project truly environmentally sustainable. In a similar vein, Philip Nobel (The New York Times) explores how 'green' architecture is less about isolated structures and far more about "the larger systems in which they function". Read the full article from Kaid Benfield here, and Philip Nobel's full article here.