Argentine scientists are taking a novel approach to studying global warming -- strapping plastic tanks to the backs of cows to collect their burps.

Researchers say the slow digestive system of cows makes them a producer of methane, a potent greenhouse gas that gets far less public attention than carbon dioxide in efforts to fight global warming.

Scientists around the world are studying the amount of methane in cow burps and Argentine researchers say they have come up with a unique way.

Attaching a red plastic tank to a cow's back and connecting it through a tube to the animal's stomach, scientists say they can trap bovine burps and analyze them.

Tags: Cow, Argentina