“A rapidly growing share of the global population lives in cities. When mayors succeed, millions of lives improve.”

We have a saying here at Bloomberg, and it’s one we brought with us to New York City Hall: “If you can’t measure it, you can’t manage it.” The federal government is now in danger of proving just how much truth those words hold.

Bloomberg Philanthropies announced the 24 winners of its latest Mayors Challenge, a competition to spur local government innovation that improves lives in cities around the world.

From an economic perspective, the tunnel is an absolute no-brainer — and it’s long overdue.

Bloomberg Philanthropies has been a steadfast partner in the fight to eradicate polio for more than a decade.

The peace “plan” the US is pressuring Ukraine to sign may be improving after talks in Geneva over the weekend, which would be good news.

Together with Carbon Mapper, Global Methane Hub, and other partners, Bloomberg Philanthropies is investing $100 million to transform how methane super-emitters are found, fixed, and repaired.

Elected officials are finally waking up to the educational harms of mobile phones in public schools.

Instead of bringing out the best in America, as tragedies once did, it is bringing out the worst — in both parties.

Military personnel are often blocked from repairing their own equipment due to manufacturer restrictions. In wartime, that could be fatal.