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Q&A Is it possible to have a greenhouse effect this strong and still have an atmosphere breathable by humans?

An Earth mass terran planet is orbiting a sun-like star at 2AU. I understand the limit for CO2 greenhouse effects is 1.67AU for whatever reason (giving a conventional habitable zone limit), but per...

1 answer  ·  posted 5y ago by Axion‭  ·  last activity 5y ago by Axion‭

Question climate biology planets climate-change poisons