Coal pollution mitigation emissions of sulfur dioxide or oxides of nitrogen associated with the utilization of coal in the generation of electricity." Before being adopted in this fashion, historically "clean coal" was used to refer to clean-burning coal with low levels of impurities, though this term faded after rates of domestic coal usage dropped. The term appeared in a speech to mine workers in 1918, in context indicating coal that was "free of dirt and impurities." In the early 20th century, prior to World War II, clean coal (also called "smokeless coal") generally referred to anthracite and high-grade bituminous coal, used for cooking
Coal in Europe in coal mines, caused by the liberation of methane from mining. Annual coal carbon emissions (2005–2008 average) were highest per capita in Europe in Czech Republic 7.4, Kazakhstan 6.9, Poland 5.5, Finland 4.8, Serbia 4.5 and Germany 4.1. Coal in Europe Coal production in Europe is falling, and imports exceed production. There is, however, growing controversy in Europe over the use of coal, as many denounce it for reasons such as health risks and links to global warming. International Energy Agency reports data for EU28 countries since 1990. According to IEA, EU28 countries use of coal as fuel has went