Fable for Tomorrow/from Silent Spting pgs 370-371

In this passage it talks about how a tragedy has happened.  It sounds like a major disaster has swept through this town and destroyed it. "The roadsides, once so attractive, were now lined with brown and withered vegetation as though swept by fire." "No witchcraft, no enemy action had silences the rebirth of new life in this stricked world.  The people had done it themselves." I thought it was interesting that this quote said nothing had done this to the earth.  The people trashed the earth themselves, and as a result there were hardly any animals.  All of  the bad things that happened to this town did not actually happen, but parts have happened all over the world, and it is sad to see. So we need to do whatever we can to help people and animals who are affected with such dissasters, and try to prevent dissasters, if preventable.