Mayors Challenge
Solution Spotlight: Turning garden waste into a carbon sink in Stockholm
A Mayors Challenge like no other
Infographic: The Mayors Challenge, by the numbers
The Mayors Challenge—and the skills-building that comes with participating
Mayors Challenge impact: A look back at previous winners
Helping city solutions spread: How we think about ‘replication’ at Bloomberg Philanthropies
How one city is prioritizing the wellbeing of its first responders
Mientras la Amazonia se incendia, São Paulo impulsa la agricultura sostenible
As Amazon burns, São Paulo pushes sustainable agriculture
Explainer: What is prototyping?
Guadalajara fights corruption—and changes the way it’s being built—one click at a time
How Medellín is breaking the grip of illegal lending
