Automatic processing: Every block (32x32) on the map will gradually reduce the pollution index. Therefore, the greater the pollution diffusion, the higher the absorption. Trees also absorb some pollutants. Insect nests will absorb a lot of pollutants and use these pollutants to produce insects. In some modules, there may be equipment or planting trees to reduce pollution. Play energy-saving plug-in
Build less polluting buildings/render polluting buildings ineffective. Or fight a wormhole and expand the territory. The initial area of the new game is the largest.