French activists are protesting against toxic red mud
Several tons of toxic waste were dumped right in front of the French Ministry of the Environment by ZEA activists. Here is a behind-the-scenes look at the operation.
Pangolins under threat as illegal trafficking grows
Fire Drill Fridays, Jane Fonda's climate fight
Hanging bridges in Costa Rica's canopy
Two monarch butterfly advocates found dead in Mexico
The life of Boyan Slat, a young man who wants to clean the oceans
'Cocaine hippos' threaten ecosystems in Colombia