Cow burps moo-ted as green risk; ENVIRONMENT.
SCIENTISTS are taking a novel approach to studying global warming -- collecting cow burps.
Researchers claimed the slow digestive system of cattle makes them a producer of methane, a potent greenhouse gas.
Experts around the world are studying it but Argentine researchers said they have come up with a unique way.
They attach a plastic tank to a cow's back and connect it through a tube to the animal's stomach.
A researcher at the National Institute of Agricultural Technology said: "When we got the first results we were surprised - 30 per cent of Argentina's greenhouse emissions could be generated by cows."