A spot of Bovaer: The dairy cow additive that's set tongues wagging isn't bad for anyone — and it's just what we need if we want both milk and clean air

Country Life's rural columnist Agromenes looks at the huge improvements being made to the air that we breathe, through the unlikeliest of ways.

Country Life's rural columnist Agromenes looks at the huge improvements being made to the air that we breathe, through the unlikeliest of ways.