The world is a greenhouse. The role of the
atmosphere is to insulate and warm the surface of
the earth. The greenhouse effect is not a new
phenomenon. Humans can help reduce the
increasing greenhouse effect.
The atmosphere insulates and warms the surface
of the earth. Incoming solar radiation passes
through the atmosphere. The surface of the earth
absorbs some of the radiation. The unabsorbed
radiation is emitted back out in the form of infrared
radiation. Gases, such as, carbon dioxide,
methane, nitrous oxide, and water vapor absorb
the reflected infrared radiation. These gases
re-emit infrared radiation, some of which the earth
absorbs. The greenhouse effect is the absorption
of infrared energy by the surface of the earth and
the atmosphere.
The greenhouse effect is not a new phenomenon.
The sun has always shone on the earth as far as
scientists can say. In addition, the earth has always
had an atmosphere. The atmosphere and the gases
in it have caught and......
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