[Space] Terraformed Venus as a setting

[Mailanka]

Originally Posted by Nereidalbel

If you could fix the serious greenhouse problem Venus has, it would probably feel like some of the hotter periods of Earth's past. The only problems would be terrible conditions for farming, and the lack of a magnetic field being bad for forming an ozone layer. If you could artificially generate one to keep the upper atmosphere stable, it would just be a hot Earth. No volcanos, though. Venus' period of hyper volcanism went on a lot longer than any volcanic period Earth has experienced.

If we didn't have an artificial magnetic field, thus no ozone layer, how stable would the atmosphere be? Are we talking changes in a few centuries, or changes in many millenia?

I suppose the other problem would be growing crops (in addition to the crappy soil, you have a pretty irradiated environment, thanks to a lack of an ozone layer, a lag of magnetosphere, and being so much closer to the sun). Handwaving away the crappy-soil problem, would it be possible to grow crops? Or possible to genegineer plants that could tolerate this sort of environment? And how substantially different would you need to make the biosphere of the world? Would we be talking a top-down change, or could we just adjust some of the basic seeds of life, like our planktons and our grasses, and the rest would be alright, presuming it could eat the altered plants?