Ecumenoanthropology

Ecumenoanthropology is the study of human civilization on a planetary scale; a fictional scientific topic discussed in the story,  '8113'.

Ecumen (world-encompassing) + Anthropology.

Prominent scholars of ecumenoanthropology include Dr Sal Feldspar, who chartered Project De Novo in an effort to repopulate Earth with genetically modified humanoids capable of tolerating the harsh planet's environment. The program was shut down during the Fifth War, when human printing was outlawed.

Dr Feldspar's most reputable understudy, Coselay, is a key protagonist in the story. She is tasked with finding her missing tutor, who may have proof that Earth is becoming habitable again for the first time in more than 5000 years.