I think that our planet is going to be completely polluted in around ten years. The oceans will be dirty, and all sea inhabitants will be dying by that time. The forests will be almost empty, and the cities, too. People will move underground as the air will be polluted too. It will be unsafe to stay on the earth, so dirty the Earth will be! That is why we need to think of our future now, and start taking care of our planet now, yet it's not late.