Human beings should just start by stopping the use of cars, buildings, computer, electronic devices. we should just lead a nomadic life just like how our ancestor tens of thousands of years ago lived. Allowing nature to recover - Amazon forest, Jordan River, Easter Island. Slowing down our pace, allowing balance within the biodiversity on earth to take place. Maybe we should just kill all the human on earth until a small group of human being were left so they could ensure a continuity of human beings. Ok, joking. Human should start coming up with plans on saving the earth before earth takes action. Earth one day might just do what she did to the dinosaurs back then, destroying everything in order regain peace and balance. I really hope that world leader can seriously look into this matter and act acoordingly.