Negatory on that!! I don't agree. Author should read Julian Simon's "Hoodwinking the Nation" or Bjorn Lomborg's "The Skeptical Environmentalist." If resources were limited, prices would be going through the roof. They are not!
After that early statement, entire article went about 180 degrees off course.
If resources were unlimited they would be free. Every resource you have to pay a price for is limited, but the resources you pay more for are more limited than the ones you pay less for.