1. The City of New York, PlaNYC: a greener, Greater New York, 2007.
2. City of Chicago, Chicago climate action plan, 2007.
3. Mayor or London, The London plan: spatial development strategy for greater London, February 2008.
4. The City of New York, Inventory of New York City greenhouse emissions, September 2010.
5. Energy, Planning and Urban Form;Owens,1986