China's heavy metal pollution is staggering. The tap water in many areas tastes like heavy metals, or how you might imagine heavy metals tasting. Stick some a

China's heavy metal pollution is staggering. The tap water in many areas tastes like heavy metals, or how you might imagine heavy metals tasting. Stick some aluminium in your mouth. Then put a 9-volt battery, with some zinc, in there and gurgle it all with Listerine. It's difficult to describe unless you've tasted it. And if there is a country that could tackle an issue as immense and demanding as this, it's China.