For each question, do a couple of model runs that answer the question, and document your answer for hand-in by printing out the relevant spectra, or record the relevant integrated IR fluxes, or whatever seems appropriate. This lab will run for two weeks. Calculation time is around a minute for a single job, but decreases as the load increases. Methane has a current concentration of 1.7 ppm in the atmosphere, and it's doubling at a faster rate than is CO 2 . The greenhouse effect theory presumes that an increase in the temperature at ground level will lead to an increase in the outgoing IR energy flux at the top of the atmosphere.
More water can evaporate into warm air than cool air.
Explain what you see.