Curitiba, greenest city in Brazil
In Curitiba, the "greenest city in Brazil", it's possible to trade household waste for food or bus tickets.
And even more
The story of the Aral Sea’s disappearance
How to make eco-friendly deodorant
3 techniques to find your way in the woods
Could "smokers" be the origin of life on Earth?
Drugs and pesticides: a pollution invisible to the naked eye
These people joined the "fertile disobedience" movement to protect nature