Scientists are trying to work out how to make sheep fart and burp less in a bid to save the planet. They desperately want to stop the animals from producing so much methane, which they warn is having ...

Cows and pigs produce a large share of planet-warming methane. A new tax is part of a plan to clean that up. Denmark is home to five times as many pigs and cattle as people. A dairy farm in Slagelse, ...