The people that say the earth's resources are getting used up are city people that don't realize how vast the earth is.
I remember in the 1980s, all supermarket bags were paper. But then the greenies said we gotta save the trees, even though trees have a lifespan and not cutting down the old growth means that you don't make way for the new growth. So then we went to plastic and everyone was happy about that until the left decided plastic was very bad. Now we are going back to paper because paper is "renewable" and "biodegradable". And now the supermarkets charge 5 cents a bag for making the change.
These are the same psychologically unstable people that push "global warming".
What these folks fail to recognize is that droughts, floods, storms, climate cycles, is all part of natures self cleaning mechanism. If everything stayed the same all the time the planet would be dead.