Sander van der Leeuw (University of Arizona/Santa Fe Institute) takes the view that we've gotten into our current predicament through technology:
"Most people in both politics and general society think that we need to innovate our way out of the sustainability problems that we're having. What we forget in saying this is that we innovated our way into this problem in the first place."
The point I'm trying to make is that these problems are already solved. That is, when the pressure is high enough (and it's been shown that it won't need to be that high) it's clear that there are viable solutions to our resource problems.
Modern resource worries would only be made worse through armed conflict over those resources, for basically all parties.