Pollution is a measurement of the carbon footprint of each city.
Each ton of pollution costs $1.50, 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.
With all three technologies researched, the price of pollution drops to $1.125/ton, a savings of $0.375/ton or 25% the initial price per ton.
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.