Cities are all about efficiency. It’s why they exist: to allow easy access to jobs, goods, services and ideas. However, in many countries, new and expanding cities are sprawling, car-dependent and uncoordinated – a set-up that’s not only inefficient, but carbon-intensive.
Thankfully, a new vision for sustainable urban growth is spreading, emphasizing the economic and environmental benefits of compact, connected and coordinated cities. More efficient urban growth can drive a productive, equitable economy while limiting traffic accidents, air pollution and greenhouse gas emissions. Wide consensus is forming among national and local leaders, who understand the economic case for an urban transition. But while we have agreed on a better vision for future cities, what remains to be seen is the “how” of the transition.