What most of the posters here seem to lack an understanding of is that ebnergy balances are a very well developed part of engineering. The basic equations used to predict global warming are decades old. These equations and the CO2 in Venus' and Mars' atmosphere have been used to account for both being hotter than they would without the CO2. They could predict the answers to your question. It is a well known fact which can be verified by simple comparison to the Moon that Earth also has a significant Greenhouse effect. The Moon's average temperature is -23C, Earth's 14C. While some differences are do to differences in reflectivity the majority of the difference is do to the greenhouse effect of water and CO2 in Earth's atmosphere. When you look at that huge greenhouse effect it shouldn't be hard to comprehend that adding a significant amount to our greenhouse inventory should easily be able to raise our temperature a few degrees. Earth's atmosphere and even Mars' distribute heat more evenly but that has little to do with the average temperature. That's all I've got time for now.

When are you going to look at the data supporting GW?

Regards,
Mark