Each time a cow lets out a burp, more methane gets added to the air. Researchers also say, these belches account for 3% of Britain's greenhouse gases, which in turn, adds to global warming. Now, scientists are exploring ways to deal with this latest environmental hazard -- "burping bovines."
Each cow emits 500 liters of methane a day; leaving researchers trying to figure out ways to reduce this gas-effect from Britain's two million cows.