In the morning, I was wakened by a loud noise, and I opened my eyes blearly. How come I don't even know myself? I said to myself, "where am I?" "You are now on the earth of the 22nd century," answered the voice and answer machine at the bedside. Oh! The time has been pushed back to the 22nd century. I wonder if the earth of the 22nd century is more beautiful and richer.

I couldn't wait to get out of bed to the window, but I didn't see the clear blue sky, the grey sky, and the faint light of the thick smoke. Suddenly, the sun disappeared, the sky clouded over, and acid rain began to fall outside the window. Want to breathe the fresh air after the rain, I open the window, but after she opened the window, a pungent odor, I quickly closed the window, picked up the telescope to see, see streets randomly piled peel and garbage, because there is no cleaning, send out a stink, disgusting.

Want to go out, question and answer machine active reminded me that I put on "cleaner" essential to every family, I quickly armed themselves, out of the house, the only street was empty, only mice pattering about in the street, the flies and mosquitoes fly around in the trash, I can't help but feel panic. Imperceptible to the funan river side and saw tens of thousands of dead fish floating in the river, send out a thick stench, is really horrible, and all the trees of the river water, hang on a plastic bag.

It turns out that due to human pollution environment, wantonly kill animals, deforestation, forest lead to the loss of the forest, the extinction of animal, caused serious soil erosion and land desertification, make the rivers into a stagnant water. At the same time, due to human built countless factories, factories discharge waste gas and wastewater result in large-scale destruction of the ozone layer, the greenhouse effect is more and more obvious, the earth is becoming more and more hot, and frequent activities of sunspots, quicken the earth Antarctic and arctic ice melting speed, each year on earth has a flooded low-lying countries.

After a careful study and calculation, the scientists to determine on December 31, 2199, is the end of the earth, then the earth would explode, global media reported the news quickly, when people just wake up. For a moment, people were in panic because the earth would explode in two days, and everyone was screaming wildly, "I don't want to die!" Scientists through efforts to nine days left in the countdown, finally discovered another habitable planet, to the collective human migration, in the earth's people finally take the spaceship left earth in the explosion.

I woke up from a nightmare. It was just a dream. Friends, in order not to let my dream come true, for posterity, please be green!