Coal

Coal, a combustible black or brownish-black sedimentary rock, has been used as an energy source for centuries. Formed from ancient plant matter, it fueled the Industrial Revolution and continues to be a major global energy source.

Coal is mined from the earth, either through surface mining or underground mining. Once mined, it’s transported to power plants, where it is burned to produce energy.

In power plants, coal is burned to generate heat, which produces steam to turn turbines and generate electricity. This process makes coal one of the primary sources of electricity globally.

Burning coal emits significant amounts of carbon dioxide, sulfur dioxide, and mercury, contributing to air pollution and climate change. Mining also disrupts land and ecosystems.

Coal’s future is uncertain as many countries transition to cleaner energy. However, technologies like carbon capture aim to reduce emissions, potentially allowing coal a lower-impact role.