cowbutsMy climate for a cow fart?Dear Checkout Line,
I read recently that meat is a huge emitter of greenhouse gas—more than even cars! It got me to wondering—does that mean all meat, or just from animals grown on factory farms? For example, I know that cow farts and burps contribute lots of methane. But don’t grass-fed cows burp and fart, too? I guess my bottom-line question is, is 
any beef really sustainable, in greenhouse gas terms?
Thanks,
Beef-loving Ed