Michael Bloomberg has long fought for public health. As a mayor of New York, he banned smoking in bars and restaurants and even launched a campaign against the sale of large-sized sugary drinks. Now as the World Health Organization’s global ambassador for non-communicable diseases—meaning anything that can harm or kill you that is not infectious—he is taking his philosophy and his cash to cities around the globe. His offer, taken up 40 cities so far, is to provide $5 million for cities that choose to focus on one of 10 healthy lifestyle campaigns, including curbing air pollution and promoting exercise. The cities that will benefit range from affluent Melbourne in Australia to Kathmandu in Nepal.