Houston we have problem

[gaelic cowboy]

That is a complete and total myth. Indians had been working the land all across the current United States for hundreds of years before Europeans arrived. Following a sharp population decline after the first Europeans arrived (due mostly to diseases that were accidently transfered), much of North America was unmanaged for a short amount of time, but what came in that time period was a direct result of earlier Indian settlement and agriculture. There is no such thing as a 'natural' or 'wild' state for land to revert back to, because since before we have history it has been shaped by humans, and no matter what happens later, it will be the result of human influence.
I am not denying that humans have the power to affect the land they are living in, by reshaping the land, irrigating, transporting soil, digging canals, etc, etc, but that is a far step from controlling global weather patterns.

I never wrote anything about Indians.

Wild state merely means unmanaged the natural state is of course something we can never again achieve.

A managed eco system will affect local climate and that local means the continental united states. (and thats fairly big yes/no)



Now to some ideas you wrote which I have picked on about control, really we should be using the terms Intereference or Change, this does not imply actual control merely application of certain processes.

It is these processes which shape and change the enviroment then later humans adapt there society to fit within the resultant new parameters.

Thats why global warming is so dangerous because if the resultant parameters are TOO harsh then humanity may be incapable of adapting sufficiently. Humans are basically changing the parameters TOO fast and likely by TOO much, it does not mean that life will be extinguished but we could send it all the way back to bacteria floating around hot vents.

We cannot actually control even the processes that we unleash, in fact in some cases we cannot even stop them. Eventually the change will self regulate by use of natural feedback loops leading to a new equilibrium, does this mean we must attempt to engineer a new equilibrium I would say NO.

We have interfered to much by spreading over the whole planet and changing everything, basically we need to stop or attempt to reduce our adding to the feedback.

Possibly then we can adapt to the new hotter world we are gifting our great grand children.