Clean Cities
A prison in Philadelphia goes all out on sustainability
The inmates received a national award for collecting more than 44 million tons of food waste.
London leads the way towards a future without cars
The Ultra Low Emissions Zone is promoting low-carbon mobility 24/7 in the UK's capital.
Big data can aid in effective climate action in cities
Some cities can serve as hotspots providing in-depth insights on particular topics.
A robot made by Aussie students leads the way on waste
Young people are good at coming up with novel solutions... like a robot that picks up trash.
In places like NYC urban agriculture may not be a panacea
Environmental outcomes in the city's agricultural landscape are far less green than widely assumed.
A sun-powered bicycle path glows in the dark in Poland
In the Polish town of Lidzbark Warmiński, biking around has become a bit more environmentally friendly.