Pollution is a local variable representing support for industrial-scale endeavors.

Summary

• Pollution is a side effect of industrialization. Any high-intensity production, warehouses, factory buildings, and so on generate pollution, which negatively affects houses. Basically, any source of pollution will turn your city into shantytowns. Apparently, Urbekites are unlike humans and won't put up with bad living conditions.

Strategy

In order to avoid turning high-density wealthy suburbs or the downtown area into shantytowns, keeping pollution far away from the main grid should be prioritized. Industrialized areas that makes use of warehouses will inevitably lead to pollution, which is also a byproduct of many advanced production buildings such as a coal-heavy energy source or the highly productive farm sheds.

Later on, advanced buildings such as the Nuclear power plant becomes available, producing high amounts of electricity without generating pollution. Solar plants,Wind turbine and the Watermill will all generate electricity without pollution. Orchards and Fruit processor are a pollution-free source to generate high amounts of food, but is costly.

Particulate matter filter can help in reducing the pollution close to your heavy coal plants. It can only be built close to the Heavy coal plant, however.