# coal

Global coal demand sees a slight uptick driven by energy security concerns, but faces increasing pressure from renewable energy advancements and stricter climate policies.

### About coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is most often carboniferous rock, and is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.

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