Doji
Joined 14 years ago
Joined 14 years ago
Deforestation is a real problem. How do you address this from a policy perspective? If you ban beef, that is only a temporary band-aid on the real problem of deforestation, which both fails to address deforestation properly, and which prevents beneficial uses of livestock such as for reuse of food waste products, grazing of natural grasslands, production of natural fertilizer, etc.
Compare this to cars. Even if the number of cars remains constant, their contribution to the C02 pool grows every day.
So we should avoid increasing cattle population 100x, but we wouldn't want to do that anyway because we'd have nowhere to put them, and I certainly wouldn't support deforestation.
Deforesting the amazon to grow corn for cows is something I'm sure we can all agree is bad.
Should we use livestock to eat cover crops and waste products like corn husks and cobs? This way we reuse waste and produce high quality protein to supplement our diets.
Should we graze cattle on natural grasslands like the great plains? Especially in rotation with human foods, like the cover crops mentioned before?
When you burn oil, you take carbon from the ground and introduce it into the atmosphere. This increases the total amount of carbon resident in the atmosphere.
When you grow plants, you take carbon out of the atmosphere. When you eat it, you release it back into the atmosphere. The total amount of carbon resident in the atmosphere does not change.
Grass grows more vigorously when regularly pruned, for example by a grazing animal. Farms also make a point of planting thing which grow quickly and efficiently. Thus it's reasonable to expect that farming could increase the rate of carbon turnover in the atmosphere, which would create the appearance of increased carbon emissions without a corresponding increase in the amount of carbon resident in the atmosphere.
In practice, farms regularly use synthetic fertilizers. They might cut down trees to clear fields for animals. They use heavy, oil burning equipment. These, and many other practices, actually increase atmospheric carbon, and for that reason should be discouraged. But the cow itself only causes a short lived, fixed increase in atmospheric methane and an increased rate of carbon turnover.
I suppose some people may consider stable to be overstating this situation. Nevertheless, when put into context of natural wild herd sizes as done by krrrh https://news.ycombinator.com/item?id=26543346 , I believe my overall point stands.
The root cause of artificial fertilizers is fossil fuels.
The root cause of feedlot runoff is... feedlots? I'm not sure if there's something more fundamental at play here. I'd like to see a fundamental analysis of this.
Cattle feed is generally not human edible, that's the beauty of ruminant animals. Even conventionally raised cattle usually grow up on grass, only to be finished on grain. Granted as cattle are slaughtered at younger and younger ages, the grain finishing portion is consuming a larger percentage of their overall lifetime feed stuff. But even so the grain they're eating wasn't going to just end up on your dinner plate. They eat the husk and all. And besides this is only bad insofar as growing food in general is bad, so that's the root cause.
You missed deforestation, which we discussed elsewhere in the comments. I recommend to check it out.