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What is the 'greenhouse' effect?
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The 'greenhouse' effect is the name given to the increase in temperature that results from an increase of some gases in the atmosphere. Sunlight passes through the atmosphere and heats up the ground. Warmth is radiated from the ground as infrared rays, which usually pass straight back up through the atmosphere. The greenhouse gases, like carbon dioxide (CO²), produced by industry, trap the infrared rays and act like a blanket, raising the temperature. | | In natural conditions, the same amount of radiation leaves the atmosphere as enters. With greenhouse gases, more radiation enters than leaves. |
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Previous:
Back
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Book:
1001
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Section:
Earth
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Chapter:
Weather and Climate
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