Atmosphere
Go to Climate Change Overview Understanding Global Warming Earth Atmosphere Figure 1 . Astronomy - Ch. 9.1: Earth's Atmosphere (29 of 61) by Michel van Biezen – Video No. 29 . Figure 2 . Black body radiation curve for the Earth with absorptions bands for the various greenhouse gasses. The yellow colored area is not overlapped by water vapor absorption and represents the major contribution by carbon dioxide. Video No. 21 . Greenhouse gasses (GHG) are keeping us nice and warm with an average temperature of app. 15 o C. Without GHG the temperature on Earth would be 33 o C colder. The solar energy received at the upper atmosphere is 1361 W/m 2 of which 48% reaches the surface of the Earth an...