Today I had an impulse to search this old concept I'd thought about (and written about) and lo and behold! Just recently a group of students in New Delhi have begun prototyping mini turbines to capture the subway wind at the entrances of stations. "Theoretical work" has shown promising numbers. Check it out on Green Optimistic's site.
http://www.greenoptimistic.com/2013/02/28/micro-wind-turbine-subway-india/#.UTAskTK9Kc0
Additionally, I've discovered that having a rigid format for this blog (i.e. one big topic per month) greatly dissuades me from actually doing any blogging. Therefore, going forward, this space will mostly be where I post links to articles relevant to Sustainable Urbanity, maybe with some brief commentary. Occasionally, I might throw in a long piece if something particularly catches my fancy, so stay tuned!