Quote:
Originally Posted by Vman455
The species from which we selectively bred cows, the aurochs, existed for millions of years, yes--until we drove them to extinction in 1627. But the aurochs' range was limited to Europe, and it did not exist in any population comparable to the sheer number of cows alive now, of which there are over 1 billion at any given time. (For comparison, there were only an estimated 30 million bison in North America before white settlers began hunting them. The modern cow population dwarfs the historic population of bovines, even when you combine various species on all continents). |
This doesn't change the facts that I stated. Herbivores have SUNK carbon into the soil, by grazing and moving on; pushed on by carnivores. Their digestion has no effect on the carbon in the atmosphere.