Pensri sells food on the side of the road in Bangkok, and Francesca is a nurse in Santiago. A generation ago both women were suffering from pollution-related illnesses, but now they’re healthy thanks in part to bold moves to clean up their cities. Listen how Thailand and Chile are leading the way in pollution abatement, improving lives and economies. Other large cities are being urged to adopt some of the same methods. For more information visit: www.worldbank.org/pollution