Dutch cow poo overload causes an environmental stink

Dairy farms in the Netherlands are producing so much dung they can't get rid of it safely. Now the WWF is calling for a 40% cut in herd numbers to protect the environment

There is a dirty stench emanating from the Dutch dairy sector. The industry is, by most measures, hugely successful: despite the small size of the country, it is the fifth largest exporter of dairy and has a much-touted reputation as the tiny country that feeds the world.

But there's a catch: the nation's 1.8 million cows are producing so much manure that there isn't enough space to get rid of it safely.