Monday, February 20, 2012

Global Warming


HOW DOES GLOBAL WARMING EFFECT PEOPLE AND ANIMALS?


http://www.school.eb.com/elementary/article?articleId=353185
  • The average temperature on earth is slowly increasing. this trend is known as global warming
  • Greenhouse: a glass house where plants grow, glass lets light in and keeps heat from escaping; ythis trapped heat keeps the plants warm even when its cold outside.
  • The Earth's atmosphere traps energy from the sun, Carbon Dioxide and other green house gasses do the trapping.
  • Without certain gases trapping energy, too much heat would go back into space and living things could not survive.
  • As more green house gasses get into the air, they also trap more heat-->which leads to global warming.
  • Green House effect: warming of the earth's surface and the air above it.
  • Fossil Fuels: remains of organisms that lived long ago.(oil, gas, coal, exc..)
  • People burn fossil fuels to power factories, run cars, produce electricity, and heat houses. As fossil fuels burn, they release carbon dioxide into the atmosphere.
  • Also, people have cut down many forests. Trees use carbon dioxide when they make their own food. Fewer trees mean that less carbon dioxide is being taken out of the atmosphere.

QUESTIONS: 1.) What types of animals are being effected by the cutting down of trees?
                         2.) What materials can citizens use instead of fossil fuels to power things?
                         3.) In the future what is going to happen if things keep getting worse?