As you know,the earth is becoming warmer and warmer.This photograph was took by a journalist who had made a trip to the North Pole.You see,the ice mountain is cracking due to warm weather.
Suddenly a human-face-shape became visible,it's so amazing.The human is crying...Nevertheless,this marvelous scene didn't last too long.
He finally disappeared and crashed into sea.
Almost every one know why this scene happened so often recently.
Yes,you are right,that's carbon dioxide.Today,more and more family have owned their cars and our human overused source of forest.Every year 5 percent of all the world's forest is being destroyed.Modern heavy industry gave off more and more carbon dioxide.
As you know,China is the largest consumer of carbon dioxide.This problem must be put in serious issue~