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Q&A Settings formed by Uncontrolled Terraforming of Venus and Mars via Portals

If two circular portals of 2 meter (arbitrary) diameter were created allowing uninhibited flow between surface atmospheres of Venus and Mars, what would be the environmental effects on the two plan...

2 answers  ·  posted 10y ago by kaine‭  ·  last activity 7y ago by kaine‭

Question planets terraforming