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    WASHINGTON — President Trump, flanked by company executives and miners, signed a long-promised executive order on Tuesday to nullify President Barack Obama's climate change efforts and revive the coal industry, effectively ceding American leadership in the international campaign to curb the ...

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    Mountaintop removal mining (MTR), also known as mountaintop mining (MTM), is a form of surface mining that involves the topographical alteration and/or removal of a summit, hill, or ridge to access buried coal seams.

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  • Glossary of Mining Terms - Coal Education

    A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back ...

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  • Burning Coal and the Permo-Triassic extinction

    Having worked as a geologist I know that geologists are among the most imaginative of people when it comes to thinking up exotic theories. But the theory featured in the Guardian article in Blowout Week 220 – that CO2 and other noxious gases emitted from coal seams ignited by lava caused the Permo ...

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    Hello and a warm welcome to all Instructables community. In this instructable, I am going to show you a simple blacksmith coal forge. After being inspired from...

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  • Coal mining - Wikipedia

    Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.

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    PREFACE to Web edition. Computer: Bit Slices from a Life was converted to HTML for the Web by Frank da Cruz in May 2003 for the Columbia University Computing History Project with permission and collaboration of Dr. Grosch.

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    After the Boom. Eastern Christians cling to their faith as time runs out on the former coal towns of Pennsylvania, reports Jacqueline Ruyak with photographs by Cody Christopulos

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    Another method of desalination is thermal distillation. Boil seawater and the steam condenses as freshwater, leaving salt and other minerals behind.

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    Tackling climate change and reducing poverty can, and indeed must, go hand in hand. And the role for coal is rapidly shrinking

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  • West Virginia Fatal Mining Accident Report Summaries

    1999 Fatal Accidents Back to Top of Page (1) January 20, 1999 Fola Coal Company Surface Mine No. 3, Clay/Nicholas County. A surface haulage accident occurred at 3:30 PM. The victim, a rock truck driver, had backed his truck to the berm at the top edge of a valley fill and was in the process of dumpi

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  • NOVA - Official Website | Power Surge

    Related Links. Reversing Climate Change. Combining two proven technologies could turn the dirtiest coal plants into climate-saving terraforming machines.

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  • Glossary of Mining Terms - rocksandminerals.com

    Abutment — In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back ...

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  • Coal mining | Britannica.com

    Coal mining: Coal mining, extraction of coal deposits from the surface of Earth and from underground. Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy.

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    Pellet stoves create a unique, traditional look while also providing cozy warmth. Shop Ace to find the best coal and wood pellet stoves to match your style.

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