- Apr 30, 2013
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Well at least you have admitted it has an atmosphere now.
In spite of the fact that it is farther from the sun, it still warmed at the same rate as earth. And this with an atmosphere that is 94% carbon dioxide. By comparing the two we can see that a planet with an atmosphere almost totally comprised of a so called greenhouse gas did not warm at a higher rate than earth, though it did warm. If carbon dioxide was a factor in warming, mars would have burned up before our eyes. The earth has just .040% carbon dioxide in the atmosphere. that's less than one half of one tenth of a percent of the total atmosphere and that amount represents a one hundredth of a percent increase in recent history of the total amount of our atmosphere. Had this truly had the effect that is claimed, mars would have been a fireball given the amount of C02 in its atnosphere. C02 has absolutely nothing to do with the earth's temperature. There isn't enough of it to cause a temperature increase.
Mars is farther from the Sun than the Earth, getting less solar radiation, and has a thinner atmosphere due to lower gravity, so your comparison is not valid.
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