noun
terraforming
Scientific and science-fiction term for modifying a planet's environment to make it Earth-like and habitable for humans.
See also: テラフォーミング
火星の地球化はまだSFの域を出ない。
Terraforming Mars is still in the realm of science fiction.
地球化には大気の組成を変える必要がある。
Terraforming requires changing the composition of the atmosphere.