Getting creative to cut methane from cows

Less-burpy bovines means fewer greenhouse gases

cows grazing

GREENER COWS  These cows at the Ellinbank Dairy Research Centre in Victoria, Australia, wear backpacks that measure their methane output.

Eddie Jim/Fairfax Syndication

In a pasture outside Edmonton, Canada, you’ll find a few dozen cows doing what cows do: mostly eating.