[benlambert]

The question is how accurate are the estimates?

Estimating in a complex system where one problem triggers another, cascading with feedback loops, is a messy business.

So the outcome could be either far more or far less dire than we think.

As you put it, know one knows for sure. So it's prudent to assume the worst.

[M_Grey]

Thank you. I would personally be beyond thrilled if I ended up being, "That cranky bastard who always brought up environmental and social doom." I would feel pretty foolish however, if I bet on that outcome, and just hoped for it to materialize.