What type of work will the second group be doing on Venus? If it were some sort of farming, there is a layer in the Venus atmosphere between 50km and 65km above the surface that has earth-like temperatures and pressures where a 21% oxygen 78% nitrogen gas mix, like earth has, is a lifting gas. You could float entire cities and platforms in a steampunk manner in that zone using the air they need to breath, making it plentiful and renewable if they farm some algae or similar CO2 processor. Something like interconnected domes surrounded by bags of breathable air lifting them with bays on the bottom to allow ships to come and go without venting much gas.
This also help mitigate the vitamin D problem, since the solar flux at that altitude in the Venus atmosphere is about 67% that of the solar flux at the earth's surface.
Last edited by mmartin798; 01-04-2017 at 09:15 AM.
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