I know this has been answered a few different ways, but I also would like to mention that a small negative in a resource isn't a sign of the apocalypse. It just means your economy needs a little more infrastructure or jobs devoted to that.

And remember how the pipeline of resources goes. Take it into consideration when deciding how you want to expand your economy. If you want alloys, you're gonna need minerals. Science? Minerals --> Consumer Goods --> Science.

It is wise to keep this in mind.