Thursday, April 26, 2007

What Causes Global Warming?


Global warming is one of the dangers that the Earths’ faces; that’s what made people and especially scientests search for an answer to the question: ‘what is causing global warming?’

Scientist found that human activity is one thing that leads to global warming; we add large amounts of gases to ther atmosphere that traps heat. One of the main source of these gases is the fossil fuel that we use. These gases are produced as long as we drive our cars, use electricity, or use oil or natural gas . Cutting trees is another thing that makes global warming worse; since trees and other plants collect carbon dioxide.

The increase of gases prodiction causes global warming too; it traps energy in the atmosphere which makes the surface warm; this is called the greenhouse effect.

However, my next post will contain more information about how airplanes cause global warming.

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