Sandaerocity

Polluters are responsible for damages and cleaning.
Terra-Earth-1
Terra-Venus-1
self-replicating
aero-factory capable of transforming
CO2, H2O, CH4, H2SO4 in
C6 (graphene), H2 (hydrogen),
O2 (Oxygen), S8 (sulfur).

Sandaerocity, Aero-City, Acity, is a modular cube-sphere composite buoyant atmospheric aero city, solar-wind energy, photo-electrolysis of water vapor storing buoyant energy as hydrogen/oxygen, fuel cell reconverted to water plus energy, high/low atmosphere temperature/composition control/circulation, can reduce Earth/Venus temperature, laser convert hot CO2 into C (Carbon Graphene used for buoyancy envelopes) and refrigerated O2. Acity is the aero component of Global Green Gcities, in addition to Ocities (Oceanic), Tcities (terrestrial), Ucities (Underground-water) and Scities (Space Cities). Sandaerospace/Sandaerotower can be combined or expanded with addition of Sandaeroblocks/Sandaeronets modules into a Sandaerocity that can also be combined with a Sandaerovator, a aerospace pyramid-tower elevator-accelerator. Sandaerostation connects Sandaerotrain wired/wireless lines.