§ The
Stefan-Boltzmann Law
The
energy flux emitted by a blackbody
is related to the fourth
power of the body’s
absolute temperature
F = sT4 where
s is 5.67x10-8 W/m2/K
§ Energy
emitted from the Earth
=
(blackbody emission) x (total area of Earth)
= (sTe4 ) x (4p R2Earth )