answer: #Person1# thinks the flood is an act of God, while #Person2# thinks it's caused by people damaging the environment.
documents: #Person1#: Every year, the South has the floods. It is an act of God.
  #Person2#: Do you really think so?
  #Person1#: Yeah, you have some other ideas?
  #Person2#: Think, in some way it is an act of God, but in another way, it just is caused by us.
  #Person1#: For example?
  #Person2#: We didn't pay attention to the environment, cut down trees and polluted the air.
  #Person1#: Oh, I see. Fortunately government has taken some action to prevent such things.