Intro:

The fossil fuels Coal, Oil, and Natural Gas were formed several hundred million years ago from decaying plant and animal matter. Even though these fuels are constantly being reformed, we use them at such a far greater rate that they are considered non-renewable resources. Currently, 90% of the energy we use in the U.S. comes from fossil fuels (12).

 

Comparison of F.F.'s used in Energy Production (11):

 

 

 

 

 

 

 

Types of Fossil Fuels:

 

Coal:

Coal, the most abundant fossil fuel, has played an important role in the development of the United States by supplying a source of fuel for steam engines and the power required to propel the Industrial Revolution. Coal is mainly used today as a source for electricity production.

 

 

Three Grades of Coal:

      1. Lignite - Very soft black to brown coal which produces little heat when burned and mined mostly in the Western U.S.
      2.  

      3. Bituminous or "Soft Coal" - Harder than Lignite, producing more heat · Black in color with dull bands and a high sulfur content · Mined mostly in the Mid-West
      4.  

      5. Anthracite or "Hard Coal" - Very hard and brilliantly black Coal which burns the hottest with the least amount of pollutants · Mined in Eastern Pennsylvania

 

 

Coal is predominately a domestic fuel supply with many of its deposits in North America, making it a very convenient fuel source. With most of the global coal supply thought to be found, exploration for new deposits is less of a concern to scientists than the efficient and environmentally safe methods of extracting and burning coal.

 

Distribution of Coal Deposits: (By %)

 

Extraction of Coal:

The extraction of coal from the earth poses problems to those who mine the coal as well as the environment surrounding the mining site. Subsurface mining and Strip mining are two methods of extraction that contribute to these problems.

Subsurface or "Underground" mining is responsible for approximately 40% of the coal mined in the United States. Underground mining causes much less damage to the surrounding environment; however, the underground process contributes to severe health problems suffered by miners. Black lung and lung cancer are two diseases that have been developed by coal workers who were subjected to long hours working in underground mines. The Federal Black Lung Program has been formed to compensate miners who suffer from diseases and disorders contracted by working in coal mines.

Surface or "Strip" mining is responsible for the remaining 60% of the coal mined in the U. S. Strip mining is much safer for miners as well as being less expensive and more efficient in the complete removal of coal from deposits. The main problem associated with the Strip mining process is the large areas of land that must be disturbed by the mine site. This causes a loss of habitat for organisms, polluted run off water, and landslides that are more likely to occur with no vegetation to control erosion. The resource recovery needed to return the sites to their original landscapes is extremely expensive and would probably be ignored if the SMCRA (Surface Mining and Reclamation Act) would not have required mining operations to obtain permits and be subjected to periodic inspections. The mine sites must also be restored to their original form; however, the number of abandoned sites that already exist makes their clean-up almost impossible (11).

Burning of Coal:

The burning of all fossil fuels produces carbon dioxide which contributes to global warming. Coal produces the largest amount of carbon dioxide and also produces great amounts of sulfur and nitrogen when burned. The sulfur and nitrogen combine with water in the atmosphere to form oxides that lead to acid rain and solid acid deposition. Burning cleaner "Hard Coal" and implementing Clean Coal Technologies helps with the pollution problem but does not stop polluting emissions.

Clean Coal Technologies:

      1. Scrubbers: Water and lime are added to waste in smokestacks, neutralizing sulfur, but leaving sludge which becomes a disposal problem (11).
      1. Fluidized-Bed Combustion: Limestone is added to coal with a strong air current during the burning process which produces no sludge and less nitrogen since the coal is burned at a lower temperature (11).

How Long Will Our Coal Supply Last?

According to scientists the global coal supply will last over 200 years at our current rate of consumption. I believe this is a naïve statement because developing nations, in all probability, will be dramatically increasing their use of fossil fuels.

Oil and Natural Gas:

Oil and Natural gas have overtaken coal as the predominant fuels in the U.S. and in 1993 they supplied about 56% of U.S. energy (11). The United States currently uses approximately 17 million barrels of oil a day (12).

Crude Oil is refined to make fuels varying from heating oil to gasoline, and unlike coal, exploration for oil is constantly underway at great expense. Oil deposits are usually in large clusters, especially in the Persian Gulf region.

 

Distribution of Oil Reserves:

 

Downside to Oil:

Although Oil burns much cleaner than coal it still emits carbon dioxide as well as nitrogen that leads to acid deposition. Another drawback with the use of oil is the long distances it must travel in tankers or pipelines. The disaster caused by the single hulled Exxon Valdez illustrated the damage that can be caused by one spill. As a result, The Oil Pollution Act of 1990 requires all tankers be equipped with a double hull by 2015. Due to the expense this mandate will pose to oil companies, most will not make this change until the deadline, leaving the tankers relatively unprotected (11).

Clean Petroleum Technologies:

New Technology is making it possible to burn oil with far less emissions in the form of A-55 Clean Fuels that contain a combination of water, petroleum bases, and an exclusive additive package. The additive provides a stable emulsion that allows water to be responsibly introduced into the burning process (8). The addition of water results in the production of fewer pollutants and creates a fuel that has been used in many types of boilers and diesel engines.

Natural Gas:

Natural Gas is the cleanest of the fossil fuels. It emits far less carbon dioxide, sulfur and nitrogen than oil or coal. Although the use of natural gas is still somewhat limited, it is being used more and more in the generation of electricity, commercial cooling, and transportation. The use of natural gas as fuel for vehicles is growing and costs about the same as gasoline while emitting less pollutants (11). Natural gas has a promising future as an energy source although it will likely be overused as coal and oil have been.

 

How Long Will Our Supplies of Oil and Natural Gas Last?

Experts believe that the reserves of oil and natural gas could last anywhere from a few decades to 100 years although the increase in use from developing nations should tax the reserves and drain them sooner than our current use predicts. The development of new reserves often involves exploring and tapping environmentally sensitive areas such as the Arctic National Wildlife Refuge (12). This is not only detrimental to the environment, but also takes away from funds that could have been used in the search for alternative sources of fuel.

Other Options:

Even though new and improved extracting methods are expected to expand the fossil fuel supply slightly, we must still explore other options for a reliable source of power.

Synthetic blends of fossil fuels or Synfuels offer one alternative to standard fossil fuels. Synfuels which include oil shale, tar sands and liquefied coal would stretch our fuel supply, but like fossil fuels, they emit carbon dioxide and would require many strip mining sites that would scar the landscape (11). Oil shale must be mined, crushed, and heated before it can be refined. This expenditure of time and energy makes it a non-cost efficient resource. Tar sands are underground sand deposits pemeated with tar or oil so thick that it does not move and must be surface mined (11). Liquefied coal which is a non-alcohol liquid fuel may be used as an alternative to gasoline but is still to costly to produce to be cost competitive.

The use of Renewable Resources is another option that is very appealing to environmentalists because renewables produce no air or water pollution (12). Some renewable resources include Hydroelectricity, Solar power, and Wind Power. Hydroelectricity is responsible for 4% of U.S. energy, with solar and wind power supplying less than 1% (12). The problem these sources of energy face is the fact that they simply are not competitive against the cost and convenience of fossil fuels Let's not forget that the sun, wind, and water supply are not always reliable, and the large amount of land needed to harness solar or wind power is a definite drawback. Hydroelectricity has met with some success, though environmentalists are beginning to worry about the affect that the damming of rivers is having on fish and plant populations (12).

 

Our goal should be the attainment of at least a short term reliable source of energy to use until advancements in technology or science help us find new alternatives (11).

 

With a limited supply of something as important as fossil fuels debatable issues will arise as demand grows stronger and supplies dwindle.

 

Issues Involving Fossil Fuels:

  1. Developed vs. Developing Countries
  2. · 22.3% of the World's Population lived in Developed countries in 1993 (11).

    · They consumed 68% of commercial energy.

     

    Do we have the right to expect developing nations to conserve the amount of fossil fuels they consume when we are already devouring the lion’s share of these resources and creating the most pollution?

    Will developing nations benefit from the U.S. as an Anti - Model for the means of progress and consumption of fossil fuels?

    Is it possible that these developing nations will stumble upon alternative sources of energy in the possible wake of forced conservation?

     

  3. Progress vs. Repercussions
  4. Is the price paid for progress worth it?

    Is it possible to take the steps necessary to cleanup the use of fossil fuels and find alternatives when the interests of "Big Industry" are at stake?

     

  5. Domestic Oil vs. Imports
  6. · Since 1994, the U.S. has imported at least half of its oil

    · It is projected that the U.S. will import 100% of its oil by 2015.

     

    Is it wise to rely on foreign oil supplies instead of domestic?

    What are the Perks?

    Is this process just a means to bleed other sources until we are forced to rely on our own?

    How willing will the U.S. be to share if this occurs?

     

  7. Government Subsidies: More harm than good?

· Pro. Subsidies - Cheep energy will inspire a cheep alternative (5).

· Pro. Actual Price - Encourages consumers to conserve (11).

· P. S. - The low cost of energy will stimulate the economy by increasing disposable income (5).

· P. A. P. - We will experience a true cause and effect relationship with the price of oil (11).

 

What are other` pro's and con's of artificially low oil Prices?

 

 

I'm sure there will be different opinions concerning these questions, which is the whole point of presenting them. They were left broad to leave room for personal interpretation. Exploring the issues surrounding the consumption of fossil fuels is like opening a can of worms. It seems as though opinions among experts vary depending on their interests and agendas, and sometimes its hard to tell if the information on the subject is based on facts or propaganda.

 

 

 

Bibliography

 

1. Botha, E. (1999, September 12). Sasol Page. < http://www.sasol.com/> (1999, September 14).

2. Center For the Study of Carbon Dioxide and Global Change. (1999, September 9).
Homepage. <
http://www.co2science.org/> (1999, September 10).

3. Fowler, J.H. 1984. Energy and the Environment. 2nd ed. McGraw-Hill Book Co., New York.
 

4. G.E. Energy and Environmental Research Corporation. (1999, August 13).Homepage. <http://www.eercorp.com/>  (1999, September 14).

5. Green Earth Society. (1999, June 15). Fossil Fuels .Org <http://www.fossilfuels.org/>
(1999, September 10).

6. Hoffman, F. (1999, September 9). Alternative Fuels Policy Research. 1 Energy TechnologiesPage. <http://www.esd.ornlgov/iab/iabs1.htm/> (1999, September 10).

7. Huffman, D. (1999, September 13). The Radium Leage. <http://www.primenet.com/~dhuffman/index.htm/>
(1999, September 14).

  1. Image Factory Multimedia. (1999, September 28). A-5Homepage.<http://www.a-55.com/>

(1999,September 29).

9. Office of Communications. Assistant Secretary for Fossil Fuels. (1999, September 9).
Fossil Energy Online. <
http://www.fe.doe.gov/> (1999, September 10).
 

10. Organization of the Petroleum Exporting Countries. (1999, August 3). Homepage. <http://www.opec.org/> (1999, September 13).

  1. Raven, P.H., L.R. Berg, and G.B. Johnson. 1998. Environment. 2nd ed. Saunders College Publishing, Fort Worth et. al.

12. The University of Michigan. (1999, April 7). Fast Facts About Fossil Fuels.

<http://www.umich.edu/~envst320/fossil.html> (1999, September 29).

13. The University of Oregon. (1999, February 12). Fossil Fuels Issues.<http://zebu.uoregon.edu/energy.html>. (1999, September 28).

14. Williams, J. L. (1999, September 27). WTRG Economics Homepage. <http://www.wtrg.com/prices.htm>. (1999, September 28).

 

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