Flame — HabitableZone

Flame » in reply to re: Give Me A Scientific Reason That Increasing A Greenhouse Gas Won't Warm a Planet's Atmosphere

Using Your Own Numbers
Marsby — (archived)

The average temp on Mars is 213 K and 250K on the Moon (splitting the difference not a true global average like the piece of data supplied only for Mars, but close in that case). Difference 37K

Black body temp (a theoretical number predicted with no atmosphere and actual solar radiation I believe) = 274.5 for the Moon and 210.1 for Mars. A difference of 64.5 degrees that Mars should be colder without it's atmospheric effects.

Mars is 37.5K hotter than it should be relative to the Moon based on the difference between the two sets of data and 21.5K hotter based on the difference between average and black body temp {(274.5-250)-(213-210) - a rough atempt to account for the fact that the midrange "average" number may not represent a true average}. These are simplistic linear comparisons of nonlinear effects, but they should illustrate clearly that Mars is hotter than it should be as a simple black body with no atmosphere.

Advice for GB: Spitting out numbers to try and sound like you know something is generally a bad idea when you don't even try to see their significance. My analysis is very rough and not to be taken in either case as the true greenhouse impact of Martian CO2, and I'm not sure all my assumptions about the black body temp are the ones actually used. However, it's clear you didn't even try to interpret their significance or you wouldn't have listed data that appears to counter your lame arguement that Mars does not have a Greenhouse effect.

Regards,
Mark

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