With the suggestion that we put nuclear-powered generators on the Moon and Mars, how long before greenies start to complain that a non-renewable energy resource will cause climate change. Hint: there is no climate on the Moon, and a damn little on Mars. And what there is of climate on Mars, it's more than one ideal climate that whackos seek on Earth.
Global warming on the Moon and Mars
This is the core subject of the excellent Hugo and Nebula winning Mars trilogy by Kim Stanley Robinson. The children of the first generation of Martian immigrants become increasingly hostile to further massive transforming and immigration which becomes increasingly necessary to humans fleeing an increasingly less inhabitable Earth. The war that breaks out to resolve the issue is so destructive that the question of preservation becomes moot.
A very interesting comparison in real history are the first children of the first Irish immigrants to the colonies in the early 17th century, who really are the first users of the tern, "Native American" ['American' is a European term, not indigenous] to distinguish themselves from later Irish immigrants. In fact, indigenous tribes did not refer to themselves as "Native Americans" until the 1960s.