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The steel sector is still highly reliant on coal, which meets 75% of its energy demand. The energy intensity of crude steel needs to decline by % annually during 2020‑2030 to attain the Net Zero Emissions by 2050 Scenario level. While energy efficiency is important for Net Zero by 2050 alignment, on its own it cannot decarbonise the sector.

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 · Metallurgical coal differs from thermal coal, used for energy and heating, by its carbon content and its caking ability. Caking refers to the coal's ability to be converted into coke, a pure form of carbon that can be used in basic oxygen furnaces. Bituminous coal—generally classified as a metallurgical grade—is harder and blacker. It contains more carbon and less moisture and ash than .

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