Pollution

Pollution is a measurement of the carbon footprint of each city.
Each ton of pollution costs , but there are ways to lower the amount of pollution of your city and to lower the cost of pollution.
== Reducing Pollution ==
=== City Services ===
There are two services, the sanitation plant and subway station, which lower pollution. Both have the same cost-to-benefit ratio of $2,000,000 to 1000 tons. For both services, it takes 55 to turn a profit without Ecology, and 66 days with Ecology. Because of the long turn-around period for profits, it is suggested not to buy these services.
=== Research ===
There are three technologies that lower the cost of pollution.
* Recycling
* Ecology
* Hydroponics
With all three technologies researched, the price of pollution drops to /ton, a savings of /ton or 25% the initial price per ton.
Category:Statistic
Category:Gameplay
=== Zones ===
Buying civic zones also decreases the ammount of pollution by 20 tons /zone. Every residential zone adds 100 ton, commercial zones add 60 ton and industrial zones add 140 tons of pollution.