Claim: ‘Clean coal’ is an approach in which the emissions from coal-burning power plants would be captured and pumped underground.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Carbon capture and storage (CCS) (or carbon capture and sequestration or carbon control and sequestration) is the process of capturing waste carbon dioxide (CO 2) usually from large point sources, such as a cement factory or biomass power plant, transporting it to a storage site, and depositing it where it will not enter the atmosphere, normally an underground geological formation.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Also known as geo-sequestration, this method involves injecting carbon dioxide, generally in supercritical form, directly into underground geological formations.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Carbon capture and storage (CCS) is a method to mitigate climate change by capturing carbon dioxide (CO2) from large point sources such as power plants and subsequently storing it away safely instead of releasing it into the atmosphere.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Coal pollution mitigation, often called clean coal, is a series of systems and technologies that seek to mitigate the pollution and other environmental effects normally associated with the burning (though not the mining or processing) of coal, which is widely regarded as the dirtiest of the common fuels for industrial processes and power generation.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: It also promotes clean coal technologies.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Coal pollution mitigation is a process whereby coal is chemically washed of minerals and impurities, sometimes gasified, burned and the resulting flue gases treated with steam, with the purpose of removing sulfur dioxide, and reburned so as to make the carbon dioxide in the flue gas economically recoverable, and storable underground (the latter of which is called "carbon capture and storage").

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The coal industry uses the term "clean coal" to describe technologies designed to enhance both the efficiency and the environmental acceptability of coal extraction, preparation and use, but has provided no specific quantitative limits on any emissions, particularly carbon dioxide.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Clean" coal technology usually addresses atmospheric problems resulting from burning coal.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: A coal-fired power station is a type of fossil fuel power station.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: A coal-fired power station or coal power plant is a thermal power station which burns coal to generate electricity.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Refined coal is the product of a coal-upgrading technology that removes moisture and certain pollutants from lower-rank coals such as sub-bituminous and lignite (brown) coals.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: In 2014, President Barack Obama proposed a series of Environmental Protection Agency (EPA) regulations, known as the Clean Power Plan that would reduce carbon pollution from coal-fired power plants.