The obligatory link: Cow 'emissions' more damaging to planet than CO2 from cars
Y'know, it's an amazing thing. Livestock, living naturally, are a graver threat to our world than are planes, trains, and automobiles? Honestly, it strikes me as vastly amusing that, on the one hand, we have people telling us we're killing the planet, and we need to drive less, or not at all, and we need all of our factories to reduce emissions of various particles by such-and-such percentages, or we're going to burn or freeze the world to death. Meanwhile, on the other hand (or not really, since the two concepts seem to run in the same circles), nature is practically sacred, and can do no wrong. It's just doing what it must to survive, after all. We're the ones getting in the way.
... And now, nature is doing more damage to the world than man is? What are we supposed to do, implement a variant of China's new one dog policy on cattle? I mean, they're not warm and fuzzy, so maybe the outcry wouldn't be as great... Meanwhile, we could have a grand last cow feast, at least until the mad cow scare kicked back in. Or, would we be eliminating that, too? Certainly, by reducing the ammonia output of livestock, we'd be saving the rainforest! See? A truly worthy end. Every cow could go to the slaughter with peace in its soul, since it'd be helping save the world.