Template:Coal - WikiMD.com - Food, Medicine & Wellness Encyclopedia

Coal types by grade (lowest to highest)	* Xylit Peat¹ Lignite Sub-bituminous coal Bituminous coal Anthracite Graphite¹
Coal combustion	* Ash pond Asian brown cloud Asthma Black coal equivalent Char Charcoal Coal combustion products fired power station gas phase-out pollution mitigation power in China power in the United States preparation plant seam fire tar Coke Coking Energy value Flue gas Fly ash Fossil fuel Fossil fuel phase-out Great Smog of London Greenhouse gas emissions Metallurgical coal NOx Smog Sulfur dioxide Toxic heavy metals
Coal mining	* Blackdamp Black lung disease Coal dust Coalfields Coal gas homogenization liquefaction mining disasters in the United States mining region refuse slurry town Environmental issues in Appalachia Environmental justice and coal mining in Appalachia Firedamp Health and environmental impact of the coal industry Health effects of coal ash History of coal mining Hydrogen sulfide Mining regions Outbursts Peak coal Problems in coal mining Refined coal Whitedamp

Note: [1] Peat is considered a precursor to coal. Graphite is only technically considered a coal type.