On New Zealand farm, scientists reduce cow burps to save the world

Calves are fed a probiotic supplement called "Kowbucha," which has been shown to reduce the methane that they produce, as part of a trial at a Massey University's research farm in Palmerston North, New Zealand, September 7, 2022. REUTERS/Lucy Craymer

More than a dozen calves wait at a research farm in New Zealand to be fed Kowbucha, a punnily named probiotic that studies show reduces burps -- or methane emissions.

The Kowbucha powder is blended into a milk-like drink fed to the calves at the Massey University farm in Palmerston North.