brookcove
Posted : 3/1/2009 11:46:47 PM
Actually, it's not true about the resources required to raise a unit of beef. I know where you get that information and many of the assumptions used in those calculations are erroneous.
I respect vegetarians and their choices but I don't think it's necessary for great overall reduction in meat consumption, to achieve sustainable agriculture.
Here's an article which explains this very well, written by a good friend of mine (a fellow shepherd, of course :) ): "Eat Red Meat and Save the Planet!"
Here's an excerpt:
Every acre of managed pasture and range absorbs
greenhouse gasses. Grass based farming increases the organic matter in
the soil, and this organic matter is largely carbon. The carbon comes
from decaying plants, which obtained carbon by taking it out of the
atmosphere in the form of carbon dioxide, one of the most powerful
greenhouse gasses. The management of cattle on pasture or range
requires very little in the way of fossil fuel input. Pasture and range
is generally not treated with chemical fertilizer. Low-horsepower
vehicles (actual horses, in many cases) are used to check and round up
cattle. Perhaps most importantly, the soil is not tilled.
He goes on to note that tillage oxidizes carbon into greenhouse gas - whether it's tilling to produce grain for those feedlots, or to support an increasing demand for cereals, legumes, and vegetables for a vegetarian population.
Animals can be raised close to or within populated areas. A single feeder calf, raised on an acre with his mother who also produces milk by the way, can support two to four families of four for a year, with some supplemental cereal and vegetables and fruit. Ditto with six sheep or goats, or two pigs. Mass horticulture requires large acreages - there's no getting around it. Therefore while livestock can be processed and consumed within a hundred miles of the source, vegetable products require shipping to urban areas, storage, and marketing venues.
Sustainable livestock operations don't require chemical inputs. Rotation of stock and forage species, provide a balance between nitrogen removal and fixing (clover and other legumes put nitrogen in the soil, in a process called "fixing";) in the way that existed on the prairies for millions of years before we arrived and plowed them all up for, um, crops.