Harrison Ford on tackling climate change
During a climate change summit, actor Harrison Ford took aim at authorities' inaction.
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
This is one of the most invasive aquatic plants in the world
How to make your own zero-waste lip balm
Behind the scenes: Activists crash the Louis Vuitton show