So why not sending green algae on Venus to harvest that CO2? When the temp drops, send something else, like trees.
Quite SF, but would worth a calculation.
Not just because "plants need water", because the chemistry is CO2 + H20 => O2 + carbohydrate
[1] http://www.vanderbilt.edu/AnS/physics/astrocourses/AST101/re...
So why not sending green algae on Venus to harvest that CO2? When the temp drops, send something else, like trees.
Quite SF, but would worth a calculation.