Moo-ving the Needle

“Cow burps are one of the largest sources of agricultural emissions—and one of the trickiest ones to solve. A food supplement that significantly reduces the amount of methane that cattle belch is now available in dozens of countries. Other products, which might prove even more effective, are likely on the way.” Less damaging cow burps are just one of the items on MIT Tech Review’s list of 10 Breakthrough Technologies.