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Transcript of Coal
How it works
Effect on the environment
Solutions & Short-comings
damage to landscape
By: Arineh Matosian, Leana Aparicio, and Catharine Cea
room & pillar mining
Contains most CO2 per BTU (British thermal unit: 1 BTU = 1055 Joules) making coal the largest contributor to global warming.
severe safety issues: environmental, social, and health
Devastation of the area around coal mines
Source: World Coal Association
Concentrated near industrialized countries
High load factor
Source: US Green Chamber of Commerce
Source: US Green Chamber of Commerce
industry/electricity - decreasing
ports for exports:
increases amount of imported energy California uses
Brings many environmental problem. Large e in CO2 emissions.
found in politically stable areas
helps poor countries gain wealth through industrial development
lethal: more deaths than oil, nuclear
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“Coal.” Clean Energy. U.S. Environmental Protection Agency, 25 Sept. 2013. Web. 2 Nov. 2014.
“Coal and Electricity.” World Coal Association. N.p., 2014. Web. 2 Nov. 2014.
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“Coal Statistics.” World Coal Association. N.p., Sept. 2014. Web. 2 Nov. 2014.
“The Disadvantages of Coal.” Fossil Fuel Resources. N.p., 2014. Web. 2 Nov. 2014.
“Fossil Fuels.” School of Oceanography. U of Washington, 28 Apr. 2005. Web. 2 Nov. 2014.
“The Fuel of the Future, Unfortunately.” The Economist 19 Apr. 2014: n. pag. The Economist. Web. 2 Nov. 2014.
John. “Four Major Energy Sources: Their Pros and Cons.” U.S. Green Chamber of Commerce. Organik, 11 Apr. 2012. Web. 2 Nov. 2014.
Mckay, John P., Bennett D. Hill, and John Buckler. “The Industrial Revolution in England.” A History of Western Society. 5th ed. Boston: Houghton, 1995. 732-43. Print.
“Methods of Mining.” Kentucky Geography Survey: University of Kentucky. N.p., 1 Aug. 2012. Web. 2 Nov. 2014.
Neuhauser, Alan. “More Coal Plants than Scheduled to Be Retired, EIA Predicts.” U.S. News and World Report 14 Feb. 2014: n. pag. Print.
“New Zealand Coal Mining Company Ignored Warnings over Explosion.” Telegraph 5 Nov. 2012: n. pag. Print.
“What Is the Role of Coal in the United States?” U.S. Energy Information Administration. N.p., 2 June 2014. Web. 2 Nov. 2014.
largest reserves - 200 years
distribution: 25 states
39% of total electricity in US
~560 power plants
declining since 2007
industry: cement, steel production
some industries are trying to get out of coal:
shutting down plants
exports vs. imports
2040: 32% of energy (vs. original 42%).
30.1% of all energy
40% of electricity
70% of steel production
Source: The Economist
mass production: a worldwide source of energy
rise of environmentalism
slow decline of use + development of new technologies
large quantities used
pollutants in discharge from plants
solid waste - ash:
deposited vs. recycled
additional transportation system adds to air pollution
abundant, but will eventually run out
dirty coal - pollution
preparation plants are used to clean coal
can be converted to liquid or gas but technology not ready, expensive
2. impurities removed
4. converted into electricity
1. Powdered coal burned in combustion chamber
2. Resultant heat energy produces steam
3. Steam (pressurized) rotates turbine
4. Causes rotation of coiled wires in
new forms and uses, though not fully developed and/or too expensive
Helps poor countries to rise in the industry
strong magnetic field: produces voltage
5. Electricity generated bc voltage
produces electron movement
noisy equipment can effect local wildlife