Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q24489> ?p ?o }
- Q24489 subject Q6984762.
- Q24489 subject Q7035910.
- Q24489 subject Q7163795.
- Q24489 subject Q7214212.
- Q24489 subject Q7216223.
- Q24489 subject Q8839361.
- Q24489 subject Q8839401.
- Q24489 subject Q8985535.
- Q24489 abstract "Coal (from the Old English term col, which has meant "mineral of fossilized carbon" since the 13th century) 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 forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon along with variable quantities of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen.Throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and/or heat, and is also used for industrial purposes, such as refining metals. A fossil fuel, coal forms when dead plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal, and lastly anthracite. This involves biological and geological processes that take place over a long period. The United States Energy Information Administration estimates coal reserves at 7011948000000000000♠948×109 short tons (860 Gt). One estimate for resources is 18,000 Gt.Coal is the largest source of energy for the generation of electricity worldwide, as well as one of the largest worldwide anthropogenic sources of carbon dioxide releases. In 1999, world gross carbon dioxide emissions from coal usage were 8,666 million tonnes of carbon dioxide. In 2011, world gross emissions from coal usage were 14,416 million tonnes. Coal-fired electric power generation emits around 2,000 pounds of carbon dioxide for every megawatt-hour generated, which is almost double the approximately 1100 pounds of carbon dioxide released by a natural gas-fired electric plant per megawatt-hour generated. Because of this higher carbon efficiency of natural gas generation, as the market in the United States has changed to reduce coal and increase natural gas generation, carbon dioxide emissions may have fallen. Those measured in the first quarter of 2012 were the lowest of any recorded for the first quarter of any year since 1992. In 2013, the head of the UN climate agency advised that most of the world's coal reserves should be left in the ground to avoid catastrophic global warming.Coal is extracted from the ground by coal mining, either underground by shaft mining, or at ground level by open pit mining extraction. Since 1983 the world top coal producer has been China. In 2011 China produced 3,520 million tonnes of coal – 49.5% of 7,695 million tonnes world coal production. In 2011 other large producers were United States (993 million tonnes), India (589), European Union (576) and Australia (416). In 2010 the largest exporters were Australia with 328 million tonnes (27.1% of world coal export) and Indonesia with 316 million tonnes (26.1%), while the largest importers were Japan with 207 million tonnes (17.5% of world coal import), China with 195 million tonnes (16.6%) and South Korea with 126 million tonnes (10.7%).The extraction of coal, its use in energy production and its byproducts are all associated with severe environmental and health effects. Globally, the use of coal is responsible for 44 per cent of the world's total carbon dioxide emissions.".
- Q24489 thumbnail Coal_anthracite.jpg?width=300.
- Q24489 wikiPageExternalLink global-coal-plant-tracker.
- Q24489 wikiPageExternalLink energy.cfm?page=coal_home-basics.
- Q24489 wikiPageExternalLink dclversussicl.pdf.
- Q24489 wikiPageExternalLink home.
- Q24489 wikiPageExternalLink www.energy.gov.
- Q24489 wikiPageExternalLink www.euracoal.org.
- Q24489 wikiPageExternalLink dclversussicl.pdf.
- Q24489 wikiPageExternalLink coal.
- Q24489 wikiPageExternalLink www.worldcoal.com.
- Q24489 wikiPageExternalLink www.worldcoal.org.
- Q24489 wikiPageExternalLink statistical_review_of_world_energy_full_report_2012.xlsx.
- Q24489 wikiPageWikiLink Q103910.
- Q24489 wikiPageWikiLink Q1049254.
- Q24489 wikiPageWikiLink Q1055732.
- Q24489 wikiPageWikiLink Q1098.
- Q24489 wikiPageWikiLink Q1115.
- Q24489 wikiPageWikiLink Q11183581.
- Q24489 wikiPageWikiLink Q1133499.
- Q24489 wikiPageWikiLink Q11427.
- Q24489 wikiPageWikiLink Q11720.
- Q24489 wikiPageWikiLink Q11761.
- Q24489 wikiPageWikiLink Q120052.
- Q24489 wikiPageWikiLink Q120233.
- Q24489 wikiPageWikiLink Q12069731.
- Q24489 wikiPageWikiLink Q1207.
- Q24489 wikiPageWikiLink Q1214.
- Q24489 wikiPageWikiLink Q1237331.
- Q24489 wikiPageWikiLink Q125928.
- Q24489 wikiPageWikiLink Q12603.
- Q24489 wikiPageWikiLink Q126916.
- Q24489 wikiPageWikiLink Q12725.
- Q24489 wikiPageWikiLink Q12748.
- Q24489 wikiPageWikiLink Q12758989.
- Q24489 wikiPageWikiLink Q12760.
- Q24489 wikiPageWikiLink Q12880211.
- Q24489 wikiPageWikiLink Q130760.
- Q24489 wikiPageWikiLink Q1313218.
- Q24489 wikiPageWikiLink Q131502.
- Q24489 wikiPageWikiLink Q1315785.
- Q24489 wikiPageWikiLink Q13359600.
- Q24489 wikiPageWikiLink Q133738.
- Q24489 wikiPageWikiLink Q13582867.
- Q24489 wikiPageWikiLink Q1404827.
- Q24489 wikiPageWikiLink Q141118.
- Q24489 wikiPageWikiLink Q1419245.
- Q24489 wikiPageWikiLink Q1419355.
- Q24489 wikiPageWikiLink Q1422244.
- Q24489 wikiPageWikiLink Q1425428.
- Q24489 wikiPageWikiLink Q1425553.
- Q24489 wikiPageWikiLink Q1452104.
- Q24489 wikiPageWikiLink Q1464747.
- Q24489 wikiPageWikiLink Q1466348.
- Q24489 wikiPageWikiLink Q146728.
- Q24489 wikiPageWikiLink Q148.
- Q24489 wikiPageWikiLink Q14982.
- Q24489 wikiPageWikiLink Q1501619.
- Q24489 wikiPageWikiLink Q15104297.
- Q24489 wikiPageWikiLink Q15180.
- Q24489 wikiPageWikiLink Q152057.
- Q24489 wikiPageWikiLink Q15223736.
- Q24489 wikiPageWikiLink Q152243.
- Q24489 wikiPageWikiLink Q15226042.
- Q24489 wikiPageWikiLink Q15305550.
- Q24489 wikiPageWikiLink Q1531622.
- Q24489 wikiPageWikiLink Q1532617.
- Q24489 wikiPageWikiLink Q15602372.
- Q24489 wikiPageWikiLink Q156267.
- Q24489 wikiPageWikiLink Q157675.
- Q24489 wikiPageWikiLink Q159.
- Q24489 wikiPageWikiLink Q159719.
- Q24489 wikiPageWikiLink Q1603.
- Q24489 wikiPageWikiLink Q160311.
- Q24489 wikiPageWikiLink Q160362.
- Q24489 wikiPageWikiLink Q161210.
- Q24489 wikiPageWikiLink Q161598.
- Q24489 wikiPageWikiLink Q16241204.
- Q24489 wikiPageWikiLink Q16255830.
- Q24489 wikiPageWikiLink Q16502.
- Q24489 wikiPageWikiLink Q167336.
- Q24489 wikiPageWikiLink Q16913726.
- Q24489 wikiPageWikiLink Q169950.
- Q24489 wikiPageWikiLink Q17.
- Q24489 wikiPageWikiLink Q170263.
- Q24489 wikiPageWikiLink Q17065713.
- Q24489 wikiPageWikiLink Q1709184.
- Q24489 wikiPageWikiLink Q171043.
- Q24489 wikiPageWikiLink Q171183.
- Q24489 wikiPageWikiLink Q1778575.
- Q24489 wikiPageWikiLink Q181485.
- Q24489 wikiPageWikiLink Q182098.