Scientists Might Reprogram Cow Guts So Cattle Burp Less

At first glance, the problem of cows burping might seem like a minor problem, maybe not even a problem at all. But when you count the world’s bovine population at more than 1.5 billion, and then you discover they belch out approximately 14.5% of all greenhouse gases — well, maybe that changes things. Maybe there is a problem that needs a creative solution — other than becoming a vegetarian.