Coal was discovered in Kentucky in 1750. Since the first commercial coal mine opened in 1820 coal has gained both economic importance and controversy regarding its environmental consequences. As of 2010 there were 442 operating coal mines in the state, and as of 2017 there were fewer than 4,000 underground coalminers.
History
Just two years after the first coal was discovered in the United States in 1750 explorer Thomas Walker discovered coal in what would become Kentucky and used it to heat his camp fire. Although his discovery came in the Eastern Coalfield it would be another 150 years before commercial coal production occurred there. In 1820 the first commercial coal mine in Kentucky opened in the Western Coalfield in Muhlenberg County. In its first year the mine produced 328 tons of coal. By 1843 the state produced 100,000 tons of coal, and by 1879 the state produced one million tons of coal, all coming from the Western Coalfield.
In 1879 the first commercial coal mine was opened in the Eastern Coalfield in the community of Bell County. Coal mining experienced rise and fall throughout most of the early to mid-20th century. The two World Wars made for periods of boom. The first was followed with a severe bust, brought on by the end of the Great War and then continued by the Great Depression. Following World War II, the drive toward mechanization and the Korean War pushed the industry even higher. However, railroads and households soon began shifting from coal to oil and gas for their energy needs, and the industry yet again experienced a downturn. By the mid 1950s, surface mining became the response to lower coal prices and lower demand. The process involved fewer workers and no "mining" in the traditional sense. It was during this time that the first strip mine control bill was enacted.
Diana Baldwin and Anita Cherry are believed to have been the first women to work inside an American coal mine, and were the first women to work inside a mine who were members of the United Mine Workers of America. They began that work in 1973 in Jenkins, Kentucky.
By 2001 8.36 billion tons of coal had been extracted from Kentucky, 5.78 billion tons coming from the Eastern Coalfield and 2.58 billion tons coming from the Western Coalfield.url=http://www.uky.edu/KGS/coal/production/kycoal01.htm As of 2004 around 13% of total coal reserves had been extracted from the Western Coalfield, although much of the remaining 87% of reserves were not reachable with current technology. Around 19% of coal reserves had been extracted from the Eastern Coalfield.
Two phenomena have resulted in a major reduction in the number of mine workers and number of mines in Kentucky. First, increased mechanization in both Kentucky coal fields has reduced the need for labor. This has become even more pronounced with the emergence of strip mining. Secondly, acid rain regulation found in the 1990 Clean Air Act Amendment has made Kentucky coal, with its medium to high sulfur content, less desirable. That amendment requires companies to either remove the sulfur through scrubbers or switch to low-sulfur coal, found in western states like Wyoming, or submit to fines for their sulfur production.
While comparably higher in sulfur content, the Eastern Kentucky coal does have a higher carbon density than Wyoming coal, so less of it has to be burned to produce the same amount of electricity, thus producing less per capita carbon dioxide emissions. Eastern coal remains widely used across the United States.
The Western Coalfield has been hit much harder by acid rain regulations. Whereas about half of Eastern coal is high in sulfur content, nearly all Western coal falls into this category. In recent years the state government has been seeking to land so called "coal to gas" operations that convert coal into liquid fuels that closely resemble either natural gas or petroleum.
Economic impact
Employment in the coal industry followed a steady decline from the 1980s up until the 2000s, evening out at around 18,000 for the past decade. As of 2009, 18,850 Kentuckians were directly employed in the coal industry, less than 1 percent of the total workforce. Yet, when accounting for jobs indirectly involved in the industry, that number becomes much larger, nearly 73,000. This number includes education and service industry jobs in mining communities, employment from construction, transportation and manufacturing work that touches the mining industry, as well as jobs stemming from banks, law offices and engineering firms that did business with the mining industry.
Coal's total economic impact is significant, with over 125.96 million tons of coal produced in 2006, making Kentucky 3rd in the nation for coal production. The state supplies 10.6% of the country with coal for power plants, giving it the nation's second-largest market share.
Arguably coal's biggest economic impact has been low electric rates in Kentucky, which gives the state a competitive advantage in attracting industry, including those with heavy energy demands such as aluminum smelters and automotive plants. This has also made Kentucky one of the largest consumers of energy per capita in the nation. The state's average retail price of electricity is 5.43 cents per kilowatt hour, the 3rd lowest rate in the nation."The Facts" , America's Power, accessed June 2008. In 2004 coal-fired power plants produced approximately 92 percent of the electricity generated in Kentucky.
Environmental impact
Starting in the 1960s coal seams in both Kentucky coal fields have been increasingly accessed via a method known as Mountaintop Removal Mining, which is a form of surface mining that involves the topographical alteration and/or removal of a summit, summit ridge, or significant portion of a mountain, hill, or ridge in order to obtain a desired geologic material. The process involves blasting with explosives to remove up to 400 vertical feet (120 m) of overburden to expose underlying coal seams. Excess rock and soil laden with toxic mining byproducts are often dumped into nearby valleys, in what are called "hollow fills" or "valley fills."
This method allows, through the use of explosives and large machinery, more than two and a half times as much coal to be extracted per worker per hour than in traditional underground mines,"The Facts" , America's Power, accessed March 2011. thus greatly reducing the need for workers. In Kentucky, for example, the number of workers declined over 60% from 1979 to 2006 (from 47,190 to 17,959 workers). The industry overall lost approximately 10,000 jobs from 1990 to 1997, as MTR and other more mechanized underground mining methods became more widely used. The coal industry asserts that surface mining techniques, such as mountaintop removal, are safer for miners than sending miners underground.
Yet, the environmental implications of mountaintop removal have been widely accepted as a threat to Kentucky communities and ecosystems. Valley fills have been found to cause the permanent loss of critical ecosystems through water pollution and the burial of headwater streams. Furthermore, vegetation removal and soil compaction from mining equipment both contribute to stronger and more frequent flooding from storm runoff. As for human health in counties involved in mountaintop mining, there are elevated rates for mortality and lung cancer as well as chronic heart, lung and kidney disease. These threats do not appear to go away after mining has ceased nor after land reclamation has taken place.
Coal ash pollution
Ash is the waste product of coal that has been used to boil water. Typically it is stored in pills next to the power plant and then recycled through use in cement mixing. A problem is that the mounds of coal ash are rarely covered and easily become airborne. When coal is burned into fly ash the uranium and thorium in the unburned coal are concentrated at up to 10 times their original levels. Fly ash uranium sometimes leaches into the soil and water surrounding a coal plant, affecting cropland and, in turn, food. People living within a "stack shadow"—the area within a half- to one-mile (0.8- to 1.6-kilometer) radius of a coal plant's smokestacks—might then ingest small amounts of radiation. Fly ash is also disposed of in landfills and abandoned mines and quarries, posing a potential risk to people living around those areas.
Power plant emissions of CO2, SO2, mercury, and lead In 2003, Kentucky emitted 143 million metric tons of carbon dioxide emissions, ranking it 13th in the nation overall."Texas, Wyoming lead in emissions", USA Today, June 2, 2007.
Although not included in the tables below for each facility, another heavy metal pollutant emitted by coal-powered generators is lead (Pb). Lead is a powerful toxicant, negatively impacting human and animal health when ingested or inhaled, even in extremely small quantities. The newest generating unit at LG&E's Trimble County Station, TC2 (an 810 MW-gross coal combustion unit brought online in 2010) emits lead particulate matter at a rate of 499 kg/yr (approximately 1098 lb/yr, or to put into similar terms as used for human health, approximately 498 Billion micrograms). The current level set by the Centers for Disease Control and Prevention (CDC) for child lead blood levels requiring intervention is 5 micrograms per deciliter of blood. By comparison, the TC2 unit emits mercury emissions at a rate of 1.3*10^-6 lb/MWH. Assuming operation of TC2 24 hours per day for 364 days per year, the TC2 annual emission of mercury is approximately 86 pounds.EON U.S. Trimble County Station Overview, visitor presentation from Joe Coghill - Production Leader, August 13, 2010.
Rejuvenation efforts Eastern Kentucky native, Dr. Patrick Angel initially spent most of his career within the Office of Surface Mining Reclamation and Enforcement instructing mining companies on how to fix land that was negatively affected by strip-mining and mountaintop removal mining. These efforts consisted of packing soil tightly together and planting grass, a plant which Angel says was the "only type of plant he trusted to hold the ground in place". In 2002, scientists like Dr. Angel started realizing that Appalachian forests destroyed by strip-mining weren't coming back, even with rejuvenation efforts. In Appalachia, a land mass larger than the state of Delaware should have been covered in trees, yet only held grass. After realizing this was an ecological disaster, Dr. Angel led efforts to plant more than 187 million trees which cover more than 275,000 acres of former mining land in Appalachia. Dr. Kathy Newfont, an Appalachian history professor at the University of Kentucky commented on Dr. Angel's efforts saying "...it was one of the most hopeful things I'd heard about the region in decades,".
Human health impact