Bob you are very intelligent and you know that nature replenishes itself. For example, when the first settlers came to Pennsylvania they said a squirrel in a tree in Philadelphia could go all the way to Pittsburgh without ever touching the ground, just tree to tree. The whole state was a giant forest. When the settlers came they cleared out most of the land for farming. With the onset of industrialization many of those farms have now turned back into woodlands,  which are everywhere. So I don't mind when a tree gets cut down and is used to make a Steinway piano or Stradivarius violin.