"Globalization allows industries to move around to different countries to minimize costs and maximize productivity. Country X is really good at growing widgets for export. Country Y is really good at manufacturing thingamajigs for export. Et cetera. All very efficient and mutually beneficial, until country X depletes its resources, is unable to either produce widgets or purchase thingamajigs. Both country X and country Y go "belly up". A person living in country X really wants to pursue a career in thingamajig manufacturing because there just isn't any money in widgets anymore, but can't because he was unfortunately educated in widget farming, and underqualified to emigrate to country Y."

The problem with this idea is what you call depleted resources. It's not a situation of depleting resources as much as picking the lowest hanging fruit. If it costs 100 tons to mine iron in one place and costs 50 a ton to mine iron in another place, you mine where you can get cheapest iron and you mine a lot, charge less, and make more money- and you become rich. The consumer controls the market and will unless it's a stupid consumer, buys cheaper rather than pays more.
It costs money to find oil. It cost money to build the infrastructure to drill oil wells and move the oil to market. It wouldn't surprise me in the least if there are more known reserve in America, now, then their was know reserve of oil in America 100 years ago. And it wouldn't surprise me in the least in there are more known reserve in America in hundred years from now as there is today, but even if this was the case, there is far more currently known oil reserve in Saudi Arabia then this. Saudi Arabia has lots and lots of cheap oil- cheap in the sense that it gushs up of the ground, and cheap in the sense of having lots of oil per drilled hole and of the infrastructure required per barrel shipped to market.

And as we improve the technology of finding oil we will find more oil and maybe even larger deposits than in Saudi Arabia.

"There is a squirrel in the northwestern US whose diet is so specialized that it can only survive in areas with lots of pine trees. If its natural habitat is destroyed it will become extinct. The pine trees also depend on the squirrel to bury some of its seeds. If the squirrel were hunted to extinction by a predator, the pine trees might also become extinct."

Right, well it's not a good idea to be a squirrel, not a very smart creature.