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    Fossil fuel, hydrocarbon-containing material of biological origin that can be burned for energy. Fossil fuels, which include coal, petroleum, and natural gas, supply the majority of all energy consumed in industrially developed countries. Learn about the types of fossil fuels, their formation, and uses.

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  • What Is Killing the US Coal SIEPR

    The State of Coal in The U.S.What’s UpConclusionsTaking the long view of coal in the United States, one is struck by the steady expansion of output since World War II. Figure 1 shows U.S. coal production since 1949, separating the West (the region west of the Mississippi River) from the East (the region east of the Mississippi). The East is the traditional home of U.S. coal whereas the West is primarily a post-1970 supplier.Figure 1: Tons of coal output per year, by year for Eastern U.S., We在siepr.stanford.edu上查看更多信息
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  • Positives & Negatives of Coal Energy Sources Home Guides

    Positives & Negatives of Coal Energy Sources. Coal forms from organic material that decays and experiences pressure and heat for millions of years. Since they take so long to form, fossil fuels

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  • How Coal Works Union of Concerned Scientists

    How coal is mined. In 2016, the United States burned roughly 728 million tons of coal, enough to fill a typical railroad car every 4 seconds .The electricity sector accounted for over 90 percent of all coal used in the United States, with the rest burned in industrial and commercial settings.

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  • Cleaner Power Plants Mercury and Air Toxics Standards

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    Measuring energy in . Food calories are a measure of energy in . One calorie is equal to 1,000 calories, or 1 kilocalorie. For example, the energy in a 300- calorie cream cone is about the same as the amount of electricity required to light a 100-watt incandescent light bulb for 3.5 hours.

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