Giving Mars an Atmosphere

[stevebowers]

I am fairly sure that we have established in the OA canon that Mars does have a large CO2 content in the Current Era, but tweaking the inhabitants to tolerate this is fairly trivial. Visitors would need to be tweaked too, or wear envirosuits that can adjust their breathable air to suit. By Y11K these envirosuits could be effectively invisible and intangible under most circumstances.