The city will provide soil and seeds to gardeners who are encouraged to grow vegetation wherever they can, Inhabitat reports. 

Mayor Anne Hidalgo touts the car-free day as a way to tackle air pollution, Forbes reports. 

The law requires adding solar panels or plants to rooftops, Architizer reports.

Buildings designed to cleanse the air could help Paris achieve its goal of a 75 percent reduction in fossil-fuel emissions over the next 35 years, according to the Creators Project.

The Paris mayor’s proposal would bar most vehicles from four central-city districts while adding bike lanes and prioritizing pedestrians, AFP reports. 

Dijon has responded to an aging population with amenities that encourage seniors to spend more time being active in the French city, the Guardian reports. 

Paris-based Autolib is eyeing London for its next launch of electric-car sharing, the Christian Science Monitor reports.