"Our aim is to increase the wellbeing of the cow, to reduce the greenhouse gases produced and to increase agricultural production all at once."

According to scientific estimates, the methane gas produced by cows is responsible for 4% of greenhouse gas emissions. And now, German scientists have invented a pill to cut bovine burping.

The fist-sized plant-based pill, known as a bolus, combined with a special diet and strict feeding times, is meant to reduce the methane produced by cows.

"Our aim is to increase the wellbeing of the cow, to reduce the greenhouse gases produced and to increase agricultural production all at once," said Winfried Drochner, professor of animal nutrition, who has led the ground-breaking project at the University of Hohenheim in Stuttgart. "It is an effective way of fighting global warming."