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CH3041
GREENHOUSE EFFECT
II
• The Earths greenhouse effect is similar to the
trapping of energy
in a greenhouse (glass-
house) where the glass
reduces the loss of IR
radiation (heat).
in a greenhouse (glass-
house) where the glass
reduces the loss of IR
radiation (heat).
• The greenhouse
effect
is normal. It keeps the
Earth at +15oC rather
than -18oC. It is mainly
a redirection of thermal
E back to the surface.
is normal. It keeps the
Earth at +15oC rather
than -18oC. It is mainly
a redirection of thermal
E back to the surface.
49%
31%
20%
Thermal
Radiation
Eout = Ein steady state
Solar
Radiation
