The Astronomy Thread

Ukerric said:

It's not the shifting of the color that causes problem. It's the increasing luminosity, which creates heavy rainfall, which... drains carbon dioxyde from the atmosphere.

Based on models, atmospheric CO2 could fall to 10PPM (we're at 420PPM) by 600-1200M years. At that point, there is not enough CO2 to sustain photosynthesis, O2 disappears and complex life dies out. You still get non-O2 lifeforms, but forget any form of evolved life.

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