These artificial trees could improve air quality in many cities
Strange trees have spread across this city in Mexico... This solution meant to improve air quality could soon be introduced to many other cities around the world.
How do honeybees build their hives?
In Peru, indigenous people speak out against the oil industry
Mimosa pudica has amazing abilities
The eco-friendly Bec-Hellouin farm is a model in France
Mata Atlântica, Brazil's other endangered forest
The impact of cigarettes on the environment