1. Calculate the average power of infrared radiation emitted per square meter if there were these three surface temperatures. You can by simply using the Stefan-Boltzmann equation for each temperature, and then taking an average of the three values obtained for W. How large (as a percentage) is the difference between the value in the IPCC graphic and the slightly more sophisticated

2. The total greenhouse effect on planet earth has often been estimated by determining the temperature that planet earth would have if all incoming solar radiation were absorbed by earth and then simply reemitted into space. This value would be compared to the actual average. Temperature of planet earth; the difference between the two numbers would be the greenhouse effect.

3.The three main greenhouse gases are water, methane (CH4) and CO2. Please list the maximum IR peaks for the compounds and comment on any overlap of the CO2 and methane peaks with the water IR spectrum (water is by far the most abundant greenhouse gas). The best source for finding accurate spectral data is the National Institute of Standards and Technology (NIST