Speaking of Bison; we're told now that cows are the biggest source of air pollution in California. So how is it that, in those pristine and pure utopian days of the "native american," there was no air pollution yet there were somewhere between 60-90 million Bison wandering the plains and prairies of middle America? Don't buffalos fart?
The Greens are basically opposed to anyhting that makes life better for humankind. Cattle are a source of food for most people. For the Environuts, that is bad. If humans are well-fed, then they might be, Horrors!, healthy and multiply. Also, anyhting pursued by modern man is mucho evil in the eye of the Environuts.
The EPA wasn't invented at the time.