If cattle are so bad, what about the bison?

Question

Before the hunting of the 1800's depleted the American bison so badly, they were the most numerous single species of large wild mammal on Earth (estimated at 30 million in 1800). That doesn't even include the domesticated and other wild cattle herds, or the huge bison herds on other continents.

The USA currently only has an approx. pop. of 45 million domesticated cattle.

If "livestock are a major emitter of greenhouse gases that cause climate change" why didn't they see any sign of it in the 1800's?

Note: While I do believe in Global warming, I don't believe it's caused by anything on earth, I believe it's a solar caused phenomenon.

Sources:
http://www.csmonitor.com/2007/0220/p03s01-ussc.html
http://www.aphis.usda.gov/lpa/issues/bse/bse-surveillance.html
http://www.zabada.com/zabada/deals/The-Destruction-of-the-Bison-An-enviromental-History-1750-1920-Studies-in-enviroment-and-History-/0521003482/item
http://www.russiablog.org/2007/03/russian_astronomer_points_to_g.php

Monarene:
They don't produce methane, huh? The UN just had a studied that listed them as the main methance producer in the world. You should check the facts of the people you're supporting. The UN study is one of my sources listed above.

Answer 1

That's really more logic than is allowed when discussing global warming.

A more correct way to argue is to state that 'All these respected scientists accept global warming therefore it's true' and then wave your arm across the landscape with a far-off look of wonder.

Answer 2

Livestock are NOT a major producer of methane, the greenhouse gas you are speaking of. Methane was a contributor to a period of global warming in the past, but this was from swamps producing the methane. Methane is not considered a major greenhouse gas regarding global warming.
If you think that global warming is caused by the position of the sun in relation to the earth, realize that we are actually supposed to be in a COOL period.
Global warming is not really a debate anymore. Its proven to be happening in many ways. Companies and politicians just want you to think its still a debate. In fact, 169 countries have ratified the Kyoto treaty. The U.S. and Australia, two of the worst polluters, are the only ones who have not ratified it and do not plan on ratifying it.

Answer 3

Global Warming has been an issue since the end of the Ice Age. However, tools to calculate such causes are coming about through technology... There wasn't near the amount of technology like there is now.