The world's population is growing quickly at a rate that is roughly equal to seven New York Cities each year. This growth is occurring mostly in already established urban areas, seeming to creating a strain on a big cities. This documentary film by CNBC looks into the issue of expanding urban populations and its potential effect on cities in the future. Luckily, not only is the population growing, but also technology that will make bigger cities more successful and even sustainable is booming as well. Included in this film are comments from Planetary ONE and Terraform ONE's co-founder, Dr. Mitchell Joachim, Dr. Paul Romer from Stanford's Center for International Development, and Michael Chertoff, former Secretary of Homeland Security. This film is a part of The Business of Innovation series.