Natural resources have been since  the days of our forefathers and they are still here now that you are. Nature has its way of creating balance, it has its way of replenishing the resources. No matter how much human mine gold there are many more yet to be discovered.

 No matter how humans use water, some parts of some countries are still flooded. Not many even know about precious stones. Yes, oil is being mined and used a lot but there's still more yet to be discovered. Nature can balance itself, we just need to know how to manage these resources for our greater good.