Erika Page

Progress roundup: Most of the world wants action on climate change, and would be willing to pay for it. Here’s where clean energy is making gains.

Progress roundup: Galleries marry disciplines to spark creativity, the benefits of greener playgrounds spread to the community, and Oslo, Norway, spreads budget responsibilities.

Barcelona has closed nine-block chunks of the city to traffic and transformed them into green havens, decorating the newly pedestrianized streets.

Tourism is making some top tourist destinations unlivable. Places like Barcelona are seeking a balance between affordability and hospitality.

Despite what feels like a constant flow of bad news these days, a majority around the world say they feel well rested and joyful. And young people are the most positive of all.

Mondragón, Spain, is the home of an innovative cooperative that uses capitalism to provide a different and more equitable vision of economic success.

Immigration policy failures led John Washington, who reports on the U.S. border, to write “The Case for Open Borders.”

Some European countries that offered residency rights to rich foreign investors have backed off the schemes, over doubts about fairness and security.

Small farmers are protesting rising costs and environmental regulations. Can they survive in the modern world?

Plastic pollution is a focus of Earth Day and of global treaty talks. Our story and charts show the scale of the problem and possible paths toward solutions.