The system has been in disequilibrium forever
And always will be.
While we should always seek prudent ways to be steward the resources we have available, I find it doubtful that the models are giving us the tools we need to be very prudent or wise.
Your premise does not at all account for the changes induced during the mini-iceage, nor does it account for the evidence in the geological history of periods of extremely rapid change.
The costs will be born and the advantages found as the weather continues to cycle through it inevitable changes. Instead of flattering ourselves that we are now masters of the weather, we would be far better off in spending time in seeking coping skills.
Ed