Of course we seem to be trying our best to use it up, lace it with noxious chemicals and kill the plants that make it for us.
I don't want to be negative about things, it just doesn't seem to me like that will do any good. The world is capable of compensating for our mistakes, at least until now. But at some point it would be nice if we could just stop and breathe for awhile - realize what an amazing gift our lives on this planet are - and think about whether we would like it if the parasites living in us were as ignorantly destructive of us as we are of Earth.
Breathe.