Lurking Rhythmically: Traveller Tuesday: So, how much life support for a planet? - Ponies. Pistols. Prepping.
Yes, I'm phoning it in today. There's a really cool article over at Sploid that shows the proportion of water and air to rock on this starship we call earth: Per the article: The density of the air pictured here corresponds to its density at sea level (one atmosphere.)
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So, how much life support for a planet?
You don't even want to consider the monthly mortgage payment on this thing...