Today is the fourth of July or Earth's farthest from the Sun day, only 'bout 5 million Km in orbital eccentricity. While Mars' orbit varies by 42 million Km along with a hell of an orbital tilt. Why do I bother with the not-smarter then a fifth grader crowd??
Your obviously not smarter then a 5th grader.
One can have a honest debate about the change in the earths climate.
Several factors that are not always put in the data that really make comparison difficult are
1. Co2 concerntraions are not high enough to have any mpact on global mean tempatures.
IE even if there is more co2 and carbon in the atmosphere it has not risen to a level where it would have any negliable effect on climatic tempature. The concenrtrations are just to low. If you had experimented with a bell jar and tempature dispation with various co2 mixtures you could put this particular red herring to rest. co2 acts as a insolator, so even if the concentrations were significantly higher the heat rejected from the atompshere would be equal to the heat retianed in most cases.
2. solar ouput and the earths only orbit affect global tempature more then any current or previous c02 concenrtration. in fact the earth has a dynamic wobble that we call the procession of the equinox's. It also efects the earths orbit around the sun. We happen to be in a different point in the processional cycle then we were 23 centurys ago. A point where tempatures increase. In fact there is alot of evidence that says the earth warms and cools over a 24,000 span. BTW we are still in a ice age when compared to say the triasic period.
3. even accounting for orbital difference the tempature on mars has risen by roughly the same amount as earth. That points to a outside factor. Not to mention that the sun is now going into a period of high activity which will increase ouput and tempature.
4. I am not saying we should shit on the planet. Thats rediculous.
5. water vapor affects tempature retention more then co2.