There surely cannot be any radical solution, for the existing factories cannot be bodily lifted to a place far from the populated zone.
However, the following attempts can be made to solve the problem of environmental pollution.
- Researcher may find out how to avoid harmful smoke from running vehicles.
- Deforestation should be stopped and Forestry should be developed.
- Discharge of Factory wastes in rivers should be banned so as to make the river-water free from pollution.