We are rapidly depleting the earth's resources. Its flora and fauna are being decimated. The second scenario for the end of the world involves humanity's self-destruction. We seem to be on the way to this, with racial and ethnic hatreds leading to undeclared wars and genocide. Add to this the acts of terrorism by religious and political fanatics.
Violence is endemic in our society.
The seventh horseman of the apocalypse, greed, runs rife among us. Human inhumanity suggests that the human race has not evolved far enough for us to live together peaceably. Certainly the potential is there. But the expressions of violence and greed are fostered by certain environmental conditions. Early primitive societies were characterized by cooperation when struggling against the environment to obtain sufficient food in both hunting and fishing and agricultural societies.