Land rehabilitation as a part of environmental remediation is the process of returning the land in a given area to some degree of its former state, after some process has resulted in its damage. Many projects and developments will result in the land becoming degraded, for example mining, farming and forestry.
Mine reclamation is the process of modifying land that has been mined to ecologically functional or economically usable state. Although the process of mine reclamation occurs once mining is completed, the planning of mine reclamation activities occurs prior to a mine being permitted or started. Mine reclamation creates useful landscapes that meet a variety of goals ranging from the restoration of productive ecosystems to the creation of industrial and municipal resources. In the United States, mine reclamation is a regular part of modern mining practices. Modern mine reclamation reduces the environmental effects of mining.
Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining at the summit or summit ridge of a mountain. Coal seams are extracted from a mountain by removing the land, or overburden, above the seams. This process is considered to be safer compared to underground mining because the coal seams are accessed from above instead of underground. In the United States, this method of coal mining is conducted in the Appalachian Mountains in the eastern United States. Explosives are used to remove up to 400 vertical feet of mountain to expose underlying coal seams. Excess rock and soil is dumped into nearby valleys, in what are called "holler fills" or "valley fills".
Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.
The Blackwater River is a 34.3-mile-long (55.2 km) river in the Allegheny Mountains of eastern West Virginia, USA. Via the Black Fork, it is a principal tributary of the Cheat River. Via the Cheat, the Monongahela and the Ohio rivers, it is part of the watershed of the Mississippi River and drains an area of 142 square miles (370 km2). It is a true blackwater stream, owing to spruce and hemlock trees in its watershed, the tannins of which impart a tea or amber color to its water.
Consol Energy Inc. is an American energy company with interests in coal headquartered in the suburb of Cecil Township, in the Southpointe complex, just outside Pittsburgh, Pennsylvania. In 2017, Consol formed two separate entities: CNX Resources Corporation and CONSOL Energy Inc. While CNX Resources Corp. focuses on natural gas, spin-off Consol Mining Corporation, now Consol Energy Inc. focuses on coal. In 2010, Consol was the leading producer of high-BTU bituminous coal in the United States and the U.S.'s largest underground coal mining company. The company employs more than 1,600 people.
The Surface Mining Control and Reclamation Act of 1977 (SMCRA) is the primary federal law that regulates the environmental effects of coal mining in the United States.
The Office of Surface Mining Reclamation and Enforcement (OSMRE) is a branch of the United States Department of the Interior. It is the federal agency entrusted with the implementation and enforcement of the Surface Mining Control and Reclamation Act of 1977 (SMCRA), which attached a per-ton fee to all extracted coal in order to fund an interest-accruing trust to be used for reclamation of abandoned mine lands, as well as established a set environmental standards that mines must follow while operating, and achieve when reclaiming mined land, in order to minimize environmental impact. OSMRE has fewer than 500 employees, who work in either the national office in Washington, DC, or of the many regional and field offices.
An abandoned mine is a mine or quarry which is no longer producing or operational and, there is no responsible party to finance the cost to address the remediation and/or restoration of the mine feature/site. Terms and definitions vary though the common theme is that the cost to address the hazards is typically borne by the public/taxpayer/government.
Whitewood is a closed Albertan coal mine located just north of Lake Wabamun, about sixty-five kilometres west of Edmonton, Alberta. Owned by the TransAlta Corporation of Calgary, the mine was run by Luscar Ltd. (Edmonton) since that company acquired the extraction contract from Fording Coal Ltd. (Calgary) in 2003 until closure in 2010.
The health and environmental impact of the coal industry includes issues such as land use, waste management, water and air pollution, caused by the coal mining, processing and the use of its products. In addition to atmospheric pollution, coal burning produces hundreds of millions of tons of solid waste products annually, including fly ash, bottom ash, and flue-gas desulfurization sludge, that contain mercury, uranium, thorium, arsenic, and other heavy metals. Coal is the largest contributor to the human-made increase of carbon dioxide in Earth's atmosphere.
Environmental effects of mining can occur at local, regional, and global scales through direct and indirect mining practices. The effects can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes. These processes also affect the atmosphere from the emissions of carbon which have an effect on the quality of human health and biodiversity. Some mining methods may have such significant environmental and public health effects that mining companies in some countries are required to follow strict environmental and rehabilitation codes to ensure that the mined area returns to its original state.
The Kayenta mine was a surface coal mine operated by Peabody Western Coal Company on the Navajo Nation in northern Arizona from 1973 to 2019. About 400 acres were mined and reclaimed each year, providing about 8 million tons of coal annually to the Navajo Generating Station.
Coal mining in Brazil is the country's largest source of non-renewable energy, and is an important part of Brazil's energy economy. Brazil is the tenth largest energy consumer and the third largest in the Western Hemisphere, Coal accounts for approximately 5.8 percent of the country's total primary energy supply. It is the country's largest source of non-renewable energy, followed by nuclear energy, petroleum, and natural gas. Brazil produces about 6 million tons of coal per year, and total coal reserves are estimated at approximately 32.3 billion tons. It is also important in reducing reliance on imported oil and gas.
The Hobet 21 Coal Mine in West Virginia was operational between 1974 and 2015. Straddling the border of Boone County and Lincoln County in the Appalachian Mountains, the Hobet 21 mine was one of the largest mountaintop-removal coal mining operations in West Virginia. Originally owned by Fil Nutter, the mine used both underground mining and strip mining techniques, and later even more intensive surface mining using a dragline. Increasing productivity and profitability encouraged workers to successfully strike for their health plan in 1993, which resulted in unusually thorough coverage for mine workers at this time. The Hobet mine was incorporated into Arch Coal in 1997, along with several other mines, following booming coal demand. The mine was sold two more times: to Magnum Coal in 2005 and to Patriot Coal in 2008. Patriot Coal subsequently went bankrupt in 2015, and the Hobet site was passed into a Virginia-based conservation firm who continued to mine the land while reclaiming and planting trees to offset carbon emissions for other companies.
The Stream Protection Rule was a United States federal regulation issued by the Office of Surface Mining Reclamation and Enforcement that went into effect on January 19, 2017. These regulations implement Title V of the 1977 Surface Mining Control and Reclamation Act (SMCRA). The original regulations had been issued in 1979 and were updated in 1983. Litigation over mountaintop removal mining required changes to the regulations, which were issued in 2008. These regulations were in turn struck down by a judge after litigation by environmental groups. The new regulations, the Stream Protection Rule, were issued in January 2017.
Environmental justice and coal mining in Appalachia is the study of environmental justice – the interdisciplinary body of social science literature studying theories of the environment and justice; environmental laws, policies, and their implementations and enforcement; development and sustainability; and political ecology – in relation to coal mining in Appalachia.
Environmental issues in Appalachia, a cultural region in the Eastern United States, include long term and ongoing environmental impact from human activity, and specific incidents of environmental harm such as environmental disasters related to mining. A mountainous area with significant coal deposits, many environmental issues in the region are related to coal and gas extraction. Some extraction practices, particularly surface mining, have met significant resistance locally and at times have received international attention.
The RECLAIM Act was simultaneously introduced in the U.S. Senate and U.S. House of Representatives on March 27, 2017 by Senator Mitch McConnell (R-KY) and Representative Hal Rogers (R-KY-5). The bill authorizes the use of funds generated by Surface Mining Control and Reclamation Act of 1977 (SMCRA) to be invested in communities adversely affected by the cessation of mining operations in the area.
Coal refuse is the material left over from coal mining, usually as tailings piles or spoil tips. For every tonne of hard coal generated by mining, 400 kilograms of waste material remains, which includes some lost coal that is partially economically recoverable. Coal refuse is distinct from the byproducts of burning coal, such as fly ash.
