Recovery from a global catastrophe

Some places to begin looking:

See Carl Shulman here:

It’s been discussed repeatedly here on Less Wrong, and in many other places. The weight of expert opinion is on recovery, and I think the evidence is strong. Most resources are more accessible in ruined cities than they were in the ground, and more expensive fossil fuels can be substituted for by biomass, hydropower, efficiency, and so forth. It looks like there was a lot of slack in human development, e.g. animal and plant breeding is still delivering good returns after many centuries, humans have been adapting to civilization over the last thousands of years and would continue to become better adapted with a long period of low-fossil fuel near-industrial technology. And for many catastrophes knowledge from the previous civilization would be available to future generations.