The day after tomorrow. A paleoclimatologist (a scientist who studies the ways weather patterns changed in the past).
Professor Adrian Hall, who tries to save the world from the effects of global warming while also trying to get to his son, Sam, who was in New York City as part of a scholastic competition, when the city was overwhelmed by the chilling beginnings of the new Ice Age. In addition to all of the other challenges Dr. Hall faces, he's also going against the flow as humanity races south to warmer climes, and he's nearly the only one going north. The movie has a happy ending.
The story tell us, if we don’t take care of the environment, the day after tomorrow, human beings will die. The nature will retaliate us. We should think much of a little piece of garbage and a little of water. Try our best to protect the environment we live. It equal we are taking care of ourselves.