Introductory Paragraph (In terms of overpopulation, how is running out of resources and time the same? Or different?)

Some of the most important resources in the world are non-renewable, or limited. Time, however, is a very peculiar limited resource. It cannot be created, and nothing can be done about the time that's already passed. Overpopulation is an issue that requires both time and natural resources in order to be fixed, but we are running out of them at a constant rate.