Did the white man save earth in the 1800s by killing millions of bison that would have release flatulence?

but greedy business like mcdonalds is breeding cattle at an unprecedented rate, just to make a $$$ profit. they dont even care that it is making americans fat and sickly and die. so they are making global warming worse too. why? again... profit. dont worry, obama wont sit around idly while these greedy people dig their hole deeper.