How Chicago is switching its municipal buildings to 100% renewable energy

The electricity powering Chicago's public buildings will be entirely clean and renewable by 2025. Photo: AFP

The mayor of Chicago, Lori Lightfoot, has announced plans to power all of the city's public buildings with renewable energy by 2025.

This includes more than 425 buildings, including City Hall, but also O'Hare Airport, one of the busiest in the world. This initiative should make Chicago one of the largest cities in the United States to commit to clean energy.