Coal is an important raw material for heavy industries. Its abundance ensures a rapid industrial growth. But coal mining has its own cost and it has negative externalities.
Major problem with coal mining is threat to environment. Open cast mining results in air pollution because of coal dust and coal transportation leading to suspended particulate matter. Further coal reserve attracts coal consuming industry near by which emits polluting gas.
Coal mining also results in water pollution. The material used for explosion and the hot water is discharged in drainage system.
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