- "I wanted to see the environmental controls. To maintain that much snow in this heat…"
"Yes, yes, it's a marvel of enviro-engineering, but you have to try the turbo-ski run."
- ―Elzar Mann and Samera Ra-oon
Enviro-engineering was a type of science related to the creation and replication of different environments. Samera Ra-oon, the coordinator of the Valo Republic Fair, described the fair's sky-islands as a "marvel" of enviro-engineering because they were able to replicate the cold environment of Rhinnal in Valo's summer heat.
- The High Republic: The Rising Storm (First mentioned, simultaneous with The High Republic: The Rising Storm audiobook)
- The High Republic: The Rising Storm audiobook (Mentioned only)