• John Macomber


Building Sustainable Cities. John Macomber, July 2013, Opinion. "By 2050 the number of people living in cities will have nearly doubled, from 3.6 billion in 2011 to more than 6 billion. Yet the world’s urban areas are already overcrowded and, particularly in developing countries, suffer from shortages of clean water, electricity, and other resources essential to the support of their exploding populations and fragile economies..." May require purchase or user account. Link verified March 27, 2014