Canada’s dairy farms are set to go whole hog on specially-bred cows whose burps would emit less methane—a world first.

By using a rigorous process of genetic selection, Semex, the company providing semen from ‘low-methane-emitting’ bulls, claims emissions by Canada’s dairy industry could drop 20-30% by 2050.
Researchers from the University of Guelph and the University of Alberta examined methane-emission data from the Holstein Friesian breed of cattle on 6,000 farms— about 60% of all Canada’s dairy farms.
