Environmental managers commenting on deep ecologists:
 In the first sentences you are saying that Native Americans destroyed the environment completely in the first three decades, when this didnt happen at all. They were the total opposite and defended the environment and nature with their lives, but then europeans came and implement that.
The name of the graph is "perception of technological change effects on behaviour". We can see that there are many developments on every society because of the new inventions of technology. There are many improvements because of technology  and without it we cannot be able to growth and make changes to society.