University Corporation for Atmospheric Research
Ucar: Earth's Energy Balance
See how Earth's temperature would change if the Sun's brightness increased or dimmed or if Earth's albedo was different.
Oklahoma Mesonet
Oklahoma Climatological Survey: Earth's Energy Budget
This 2-part resource details how the Earth absorbs just enough energy from the Sun to sustain life. Content explores incoming solar radiation and outgoing terrestrial radiation.
Columbia University
Columbia University: Us Mean Annual Solar Insolation
This site is provided for by the Columbia University. Part of a larger site on Solar Radiation, this is a one-page graph on the U.S. mean annual solar insolation.