We shouldn’t ruin Planet A in our attempt to switch over to
Plan B.
The amount of geoengineering needed to make Mars hospitable would solve all environmental problems on earth five times over.
The amount of geoengineering needed to make Mars hospitable would solve all environmental problems on earth five times over.
Doing stuff in space is expensive in an economic sense but it's not really all that resource intensive. Most of the cost is paying people to design, test, fabricate, and operate the hardware.