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Coal

usgb/kəʊl/Volume
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Energy SourcePlay
Coal is often associated with power generation and historical industrial use. SlideFactories during the Industrial Revolution ran on coal.
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Environmental ConcernPlay
Burning coal is controversial due to air pollution and climate change. SlideEnvironmentalists advocate for a transition away from coal.
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Cultural SymbolPlay
Coal is a symbol of an old-fashioned way of heating and energy production. SlideOld steam locomotives were fueled by coal.