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What would the weather and climate be like on an Earth-size Mars with an atmospheric pressure of 1 atm? [duplicate]

Assuming the planet still has the same atmospheric composition as the real-world Mars (95% CO2, 3% N2, and 1.3% Ar) and has a global temperature of 284K (10.85°C) based on the answer to my previous ...
Sam Biswas's user avatar
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What would the atmosphere of the Archaean Earth look like? (Before massive oxygenation)

I am designing an exoplanet in the Alpha Centauri system that is remarkably like ancient Earth before photosynthetic life developed and proliferated oxygen into the air. For Archaean Earth's ...
Koon W's user avatar
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