Damn. Kudos to you for always bringing up fascinating points that I’m not sure anyone has already considered.
My answer is yes. And, if our government stalls, we would have to same duty, theoretically, to overthrow it by any means possible.
This is the problem with doomsday scenarios that affect the whole world. Because from a mental exercise, I agree with you and my hypothetical point. If we have conclusive scientific evidence that we need to alter the course of humanity as soon as possible, then the United States doing it alone will not work. It will be a band-aid. And in the process of putting that band-aid on, we will significantly reduce our standing in the world to the point of almost full destruction of our country in terms of economic power. And while we can all argue until the cows come home whether we are the shining beacon on the hill right now, the truth is that a strong America makes for a better world than almost any other country right now.
The alternative is worse though. Because to use force against the world we would doom the world to catastrophic results. The use of nuclear weapons would be a moral imperative, which is a grossly inhuman thing to say. Beyond that, no one in this country is overthrowing our government. In 1812, maybe. Not now. And as a result we are truly stuck in a moment in time where the true necessary act is impossible but to not act is worse. Acting will drop the world into a depression worse than anything ever seen. War will be a common state of man for decades if not longer. And in the effort to save humanity from itself we would likely doom it to suffer an equally problematic fate.
The fundamental problem with the Green New Deal and smaller governmental actions to alter the course of this country lies in the fact that we have never had the human ability to conquer the world. Many empires have tried. Some succeeded to a certain extent in terms of their own continent and small empires, but never full and total control of the entire planet. And that is what would be needed to truly forestall the environmental impacts of what the report says is an inevitability.
The complete banning of the use of all fossil fuels. The immediate and total act of banning anything that pollutes the worlds fresh waterways and oceans. The immediate ceasing of using anything that requires the mining of minerals to build batteries. And on and on and on. We would be forcing ourselves into a technological dark age. It would save the environment. But probably not humanity.
I could write pages of the concomitant problems associated with environmental policy taken to its logical conclusion. I've hinted at it through the years on this board and we've never had this specific discussion. What are we truly willing to do if that report is truly the picture into the future? We need to stop every developing country now don't we? We need to basically cease the production of automobiles except for the specific purpose of transporting goods and large groups of people instead of moving one person to their vacation house in the mountains. We need to topple any government that would stand in the way and the people that would support that government. We would doom the middle east to economic ruin almost instantaneously which will probably result in a rise of terrorism the world isn't prepared for.
If we consider our pollution in its myriad forms as a cancer to the body of the planet, we need to kill it now. And keep treating the body until there is no evidence of it remaining. And in doing that we will kill living cells. It's the necessary collateral damage for the greater good. So really, how far are we willing to go?
For me, when I think through this, I don't like the endgame. It's not going to go well. It's going to get worse before it gets better. And ultimately, I don't think we truly solve the problem this way, we just trade one horrible for another. What we probably need to focus on is true international cooperation in developing truly useful and cheap alternative energy that can not just result in Americans being able to keep watching their football on Sunday's through all manner of environmentally destructive means, but can result in developing nations having an alternative to industrial progress. We need to protect the oceans and freshwater above all else, now, and that would result in a massive reduction in international shipping, not to mention a reduction of use of all things disposable. Towns setting up stupid little rules that their stores can't give you disposable plastic bags for your groceries is a cover over the problem to make people feel better about themselves. It doesn't solve a problem. It just kicks the can.
And the can is going to kill us if that report is true.