Lesotho is water-rich. But the southern African kingdom is one of the world's poorest countries. To fill the state coffers, the government exports water to its parched neighbor, South Africa. Not only do Lesotho's villagers suffer, so does its eco-system.
A new online platform is trying to help businesses get their green projects off the ground. Some contributors see a smart investment opportunity, others want to do something good for the environment.
European agriculture produces millions of tons of CO2 every year. Could encouraging farmers to capture carbon on their land to sell credits to businesses help reduce emissions?
In one of the most dangerous and deprived neighborhoods in the Brazilian city, residents are now finding hope and employment by growing fruit and vegetables.