Solar radiation
in the form of lightwaves
passes through the
atmosphere
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Most of this radiation
is absorbed by the
Earth and warms it
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Some energy is radiated
back into space by the
earth in the form of
infrared waves
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Some of this outgoing
infrared radiation is
trapped by the earth’s
atmosphere and warms it
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As the CO2 concentration
increases, more of the
outgoing infrared radiation
is trapped.
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