The scenario: Out of the ashes of some global catastrophe, humanity rises to re-establish civilization. The question: How far could such a society realistically rebuild without the aid of fossil fuels?
There are so many ways the world could end, even in the next year, that it's impossible not to fantasize about some of them, some of the time. The question is, what do you do with these apocalyptic thoughts? It seems to me there are two basic choices.
Lewis Dartnell is an astrobiologist in England who wants to help you save the world after civilization collapses. To that end, he's written a book called The Knowledge: How to Rebuild Our World from Scratch. It's the one post-apocalyptic guide you'll ever need. We've got an excerpt.