Today’s Solutions: December 20, 2025

Paris curbed cars—and cleare

Paris curbed cars—and cleared the air: what 20 years of bold green policy achieved

BY THE OPTIMIST DAILY EDITORIAL TEAM Paris spent the last two decades reimagining its urban landscape, and the results are not just visible, but breathable. The French capital has replaced car-centric streets with bike lanes and pedestrian zones, added green spaces, and eliminated more than Read More...

These US cities are home to tr

These US cities are home to tree-mendous green spaces

Urban green spaces and forestry have a multitude of benefits ranging from cognitive development and mental health to decreased crime rates, lower energy costs, and cleaner air. They also offer shelter for wildlife, boosting local biodiversity. The following US cities have taken urban forestry in Read More...

Sweden to become home to the w

Sweden to become home to the world’s first zero-emissions city zone

While Sweden’s second-largest city Gothenburg has been a leader in research and technologies combatting climate change, the city plans to take it a step further with a new ambitious initiative. Through its Green City Zone initiative, the Scandinavian city is expected to become home to the Read More...