Portal:Coal

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Introduction

Coal bituminous.jpg

Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements; chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed if dead plant matter decays into peat and over millions of years the heat and pressure of deep burial converts the peat into coal.

As a fossil fuel burned for heat coal supplies about a quarter of the world's primary energy and is the largest source of energy for the generation of electricity. Some iron and steel making and other industrial processes burn coal.

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In the news

12 January 2019 –
At least 21 miners die after a roof collapses in a coal mine in Shenmu, China. (BBC)
21 December 2018 –
At least 13 miners, eleven Poles and two Czechs, are killed and 10 injured in a methane explosion in a coal mine in Karvina, Czech Republic. (BBC)

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