Get Your Ass to Mars
Mars being a desert, the day to night temperature fluctuations are extreme. On a warm day at noon, it can get up to seven or eight degrees, but even on a warm night in Valles Marineris, the temperature goes down to twenty below. Splicers need survival clothing at night, and rusters need heavy winter duds. On the up side, pressure’s a lot higher at low altitudes, and it doesn’t get cold enough for carbon dioxide to freeze any more.
Blackeners are huge, rolling nanobot hives that move over open country, belching smart soot. Smart soot propagates and darkens the landscape, decreasing surface albedo so that the planet holds in more heat. Blackeners mostly operate around the equator, which makes the orbital mirror arrays more efficient.
plant life, especially in the Valles-Marineris, conifers, sagebrush, tumbleweeds, some grasses, lichens, succulents, and cacti. Cyanobacterial algae in varying concentrations cover large sections of open Martian desert.