'urban greening'

'martian valleys'

planting forests in the valleys and corners of the martian surface, mountain and hillside areas ..

'mars habitat formation'

mars ...

a gigantic sphere with a molten core and capable to take 1 1/2 billion people ... making our seven billion people on earth now, a more energy realistic 5 1/2 billion people ..

as the oxygen levels become breathable for being and plant outside the enclaves .. grass types can be used to carpet the large pieces of land with oxygen producing and carbon compost creating activity on the then topsoil of the planet ..

along valley depths and crevices we plant bright green river plants .. expecting the increasing rain falls spells from the water gathered from ganymede and callisto .. the two jupiter moons with enough water for venus and mars's habitat formation .. 

in the enclaves, a more tropical biohm is planted in the enclaves built around the equator .. 

inside the enclaves, water ponds with various water plants increasing surface area with carbon storage ..

terrace farming bulking and maximizing the surface area of food provision ..

then after the pioneering grass has fertilized the outer lands .. tall grasses can be planted from which bread and beer can be made .. 

as the climate outside become appropriate to the biohm inside ... the roof of the enclaves can come off .. 

the biohm of the enclave syncs up with trees and grass planted inbetween enclaves ..