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(12-20-2014, 04:35 AM)Cray Wrote: So...if you trade out 10-15% of the nitrogen in an 80 nitrogen/20 CO2 atmosphere for methane, what's that do for temperatures on Mega-Mars? Methane's a much more potent greenhouse gas.

Actually, it seems like that much methane could make the planet quite a bit warmer and ruin my Eskimos-in-space alternate history.

Again, assuming the planetary albedo remains the same, an atmospheric methane concentration of 10% raises the mean surface temperature to 520.048 K (much too hot for water, and hotter even than Venus). A 15% concentration warms the surface even more, to 545.066 K.

As you noted, methane is a potent greenhouse gas.

"I'd much rather see you on my side, than scattered into... atoms." Ming the Merciless, Ruler of the Universe

Messages In This Thread
Mega-Mars - by Cray - 12-12-2014, 10:50 PM
RE: Mega-Mars - by radtech497 - 12-13-2014, 12:21 AM
RE: Mega-Mars - by Cray - 12-13-2014, 01:03 AM
RE: Mega-Mars - by Cray - 12-20-2014, 04:35 AM
RE: Mega-Mars - by radtech497 - 12-20-2014, 07:13 AM
RE: Mega-Mars - by Cray - 12-20-2014, 12:09 PM

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