Since coal is usually burned to generate electricity for homes, it can be conserved by using energy-efficient bulbs for lighting and by conserving the energy consumed by house heaters and air conditioners. Similarly, insulating walls and cables conserves power, consequently conserving the amount of coal used.
Coal deposits in the world are quickly being exhausted. Without proper management of this important source, the few remaining deposits could be used up in the next few years, as of 2014. Additionally, burning coal is among the major pollutions that lead to global warming. Alternative sources of energy, such as wind and solar power, can be adopted to help counteract this coal-burning pollution.