The Greenhouse Effect *The earth is similar to a greenhouse. The earth atmosphere acts like the glass in a greenhouse. *Sunlight streams through the.

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Presentation transcript:

The Greenhouse Effect

*The earth is similar to a greenhouse. The earth atmosphere acts like the glass in a greenhouse. *Sunlight streams through the atmosphere and heats the earth. As the heats radiates up from earth’s surface some of it escape into space. * This Process of heat absorption is called the Greenhouse effect.

Not every gas in our atmosphere absorbs heat in this way A greenhouse gas is a gas composed of molecules that absorb and radiates infrared radiation from the sun The major greenhouse gases are water vapor, carbon dioxide, CFCs, methane and nitrous oxide. Of these, water vapor and carbon dioxide accounts for most of the absorption of that occurs in the atmosphere

How the Greenhouse Effect Works Chapter 13 Section 3 Global Warming

Chemicals That Cause Ozone Depletion Each CFC molecule contains from one to four chlorine atoms, and scientists have estimated that a single chlorine atom in the CFC structure can destroy 100,000 ozone molecule. Chapter 13 Section 2 The Ozone Shield

Ozone Depletion and UV Radiation Chapter 13 Section 2 The Ozone Shield

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