The forests play a large part in turning carbon monoxide into oxygen. ... The thinning is thought to be amazing since it occurs across the bottom of all the ice. ... The thinning ice in the Arctic is the home of most animals that live in the Arctic. ... With the ice thinning, it will be less able to support the weight of the walrus. ... As the permafrost melts, the gas escapes and increases the level of carbon in our air. ...

• Word Count: 1153
• Approx Pages: 5
• Has Bibliography
• Grade Level: High School

Although opinions are various, they both consider global warming is climate change that is leading to an increase in the overall air and water temperature. ... Earth absorbs energy from the sun; at the same time, Earth re-radiates the energy back into space. Normally, the thin layer of atmosphere can trap a portion of the outgoing radiation, which keeps Earth's temperature within a comfortable region; nevertheless, the layer of atmosphere is being thickened by a great deal of carbon dioxide and other greenhouse gases caused by humans. ...

• Word Count: 1061
• Approx Pages: 4
• Grade Level: Undergraduate

For example, ash that is spewed from an active volcano can reach up into the atmosphere and reflect solar radiation, essentially dimming the sun. ... The greenhouse effect may be a natural cause, but the air pollution of humans has increased its ability to retain heat. ... Its ability to rip the ozone apart with its free chlorine atoms leads to the thinning of the ozone and therefore more ultra violet radiation hitting earth's surface (IPCC, 2007). ...

• Word Count: 910
• Approx Pages: 4
• Has Bibliography