Go to http://phet.colorado.edu/en/simulation/greenhouse and click on “The Greenhouse Effect.”
- Look at the model of the Earth with “No Greenhouse Gases” selected (see controls on the right).
a) What is the temperature at the surface of the Earth (in Kelvin and F)? Describe what a TV weatherperson would say about the day.
b) Some scientists have suggested that high flying airplanes affect global temperature. Explain why you would be on their side or the opposing side of the argument.