Burger King addresses climate change by changing cows' diets

Burger King is staging an intervention with its cows. The chain has rebalanced the diet of some of the cows by adding lemon grass in a bid to limit bovines contributions to climate change. By tweaking their diet, Burger King said Tuesday that it believes it can reduce a cows' daily methane emissions by about 33%. Cows emit methane as a by-product of their digestion, and that has...