The roof of the world is melting
2 billion people depend on it. But according to this international study, the Himalayan range is threatening to "collapse".
How to use less water
The story of the Aral Sea’s disappearance
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