Will China's children solve its crippling water shortage problem?

China is home to 21% of the world's population but just 7% of its freshwater. One NGO teaches young people to make tackling water scarcity a priority

In Beijing's Tongzhou Number Six school, around 100 impeccably-behaved middle school students are being lectured about water.

The visiting teacher tells them that, among other things, they should take shorter showers, buy less clothes, eat less meat and drink tea rather than coffee, to help alleviate China's water scarcity problems.