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Pollution is the result of industrial waste in a colony. Each biome type can withstand certain maximum pollution level before degrading (see biomes for absorption levels).

Overview[edit | edit source]

Pollution builds up as a byproduct of Production, increasing by a percentage depending on the amount of production generated. Once it reaches 100%, the planet's biome drops drastically, usually by one rank class: gaia to terran, terran to arid or swamp (depending on planet orbit), grassland to arid, tropical to swamp, inferno to volcanic, arid and cavernous to desert, ocean and swamp to tundra, desert and tundra to barren, and barren to toxic. (Radiated planets also downgrade to toxic, however they are immune to pollution.) Managing pollution can be done with the pollution clean-up project or by building dedicated structures.

If pollution does accumulate, the planet can be restored through terraforming.

Structures for managing pollution[edit | edit source]

Name Icon Cost Upkeep Effect
Atmospheric renewer
Atmospheric renewer.png
60 2 -25% Pollution
Pollution processor
Pollution processor.png
120 3 -50% Pollution
Replaces atmospheric renewer
Toxic processor
Toxics processor.png
80 3 -25% Pollution
140 4 +30% Production per worker
-15% Pollution
Core waste dump
Core waste dump.png
200 5 -100% Pollution, replaces pollution processor