If an old-fashioned food cart makes cities a little dirtier—belching clouds of diesel exhaust as you wait for your tacos—a new mobile coffee cart does the opposite. The cart runs on solar and wind power and moves around the city on bike wheels. And it actually cleans the air directly around it, via an air purifier. The coffee cart, from a Swedish startup called Wheelys, is the fourth iteration of a design that’s meant to…
This coffee cart-on-a-bike franchise cleans the air as it brews
More of Today's Solutions
How to protect and soothe skin from smoke exposure
In light of the recent devastating wildfires in Los Angeles County, we felt it was timely to revisit this important piece. As wildfires become ...
Read MoreTired of virtual meetings? Here’s how to overcome ‘Zoom fatigue’
If you’re anything like us at the Optimist Daily, you’re probably feeling exhausted by virtual meetings. We spoke about it amongst ourselves while on ...
Read MoreAI exposes coral reefs “singing”
Coral reefs are essential to ocean ecosystems, providing food and homes to all sorts of organisms. Learning as much as possible about these living ...
Read MoreMummified mammoth accidentally discovered in northern Canada
Paleontology and archaeology can sometimes get a helping hand in unexpected places. A gold miner in Northern Canada was digging through the permafrost and ...
Read More
