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Coal

en.wikipedia.org/wiki/Coal

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder ...

Coal Explained - Coal - Energy Explained, Your Guide To ...

www.eia.gov/energyexplained/?page=coal_home

Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy ...

Coal - US Energy Information Administration

www.eia.gov/todayinenergy/index.cfm?tg=coal

Clean Power Plan reduces projected coal production in all major U.S. supply regions ... Rail continues to dominate coal shipments to the power sector ...

Coal - The New York Times

www.nytimes.com/topic/subject/coal

News about coal. Commentary and archival information about coal from The New York Times.

World Coal Association

www.worldcoal.org/

Welcome to World Coal Association, where you'll find information about coal, the environment, sustainable development, coal industry news, global coal facts ...

Coal - International Energy Agency

www.iea.org/topics/coal/

Coal is a variety of solid, combustible, sedimentary, organic rocks, formed from vegetation that has been consolidated between other rock strata and altered by ...

coal | fossil fuel | Britannica.com

www.britannica.com/science/coal-fossil-fuel

Jun 10, 2016 ... This article considers the geological origins, structure, and properties of coal, its usage throughout human history, and current world distribution ...

Beyond Coal | - Sierra Club

content.sierraclub.org/coal/

This map is comprised of data collected and maintained by the Sierra Club Environmental Law Program, and is part of the Club's ongoing campaign to wean the ...

Coal | Environment | The Guardian

www.theguardian.com/environment/coal

Why is the World Bank backing coal power in Europe's youngest country? ... Guardian Environment Network UK coal power station in breach of EU air pollution ...

Coal | Department of Energy

www.energy.gov/coal

Coal. Coal is the largest domestically produced source of energy in America and is used to generate a significant chunk of our nation's electricity. The Energy ...

Answers
Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons. It is the most abundant fossil fuel produced in the United States.
The energy in coal comes from the energy stored by plants that lived hundreds of millions of years ago, when the Earth was partly covered with swampy forests.