But we HAVE so much to loose. At the moment, even a worse case scenario is one when earth goes on and adapts. Even humans would likely survive. And it's not even decided we'll get that.

But as proven time and time again by the shitty predictions we are getting, we don't have anything close to a true understanding of the systems in which we live.

So on top of that, you'd prefer a single nation, most likely with economic interests well active in their decision making, to try and forcefully modify the system we don't really understand?

Count me out.

"Need to feel useful" feels like an altruistic decision. I believe most of these people are all but that.