Today’s Solutions: December 20, 2025

Polluted air is the cause of one in seven deaths worldwide. And the air pollution in cities is the worst. Trees help. But you need a lot of trees to clean the air in congested cities. That’s where City Tree comes in. This mix of a bench and a hedge cleans as much air as 275 trees in one percent of the space. You can find City Trees in Berlin, Paris, Amsterdam, Oslo and London.

Solutions News Source Print this article
More of Today's Solutions

6 surprising signs of loneliness women often miss (and how to reconnect)

On the outside, things seem… fine. Work is demanding but fulfilling. Family life is busy. The calendar’s full. There’s nothing glaringly wrong, yet something ...

Read More

Why a cheetah sperm bank may be key to saving the species from extinction

In the heart of Namibia, a unique conservation project is quietly preparing for a future no one wants to face. At the Cheetah Conservation ...

Read More

Try these yoga poses for deeper sleep

Yoga is a practice meant to boost mindfulness and physical wellness, so it’s no surprise that it can also improve sleep. If you’re one ...

Read More

U.S. women’s relay swim team wins olympic gold, claims new world record

BY THE OPTIMIST DAILY EDITORIAL TEAM On Sunday, the United States women's relay swim team won a historic 4x100 meter medley relay, claiming Olympic ...

Read More