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  2. Environmental impact of mining - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of_mining

    Environmental impact of mining can occur at local, regional, and global scales through direct and indirect mining practices. Mining can cause erosion , sinkholes , loss of biodiversity , or the contamination of soil , groundwater , and surface water by chemicals emitted from mining processes.

  3. 'Green' energy needs metal. Can we combat climate change ...

    www.aol.com/news/green-energy-needs-metal-combat...

    While ecological harm from mining is unavoidable, policy designed to reduce the negative impacts of domestic mining has already been proposed, Jordan Brinn, a clean energy policy advocate at the ...

  4. Underground hard-rock mining - Wikipedia

    en.wikipedia.org/wiki/Underground_hard-rock_mining

    There are two principal phases of underground mining: development mining and production mining. Development mining is composed of excavation almost entirely in (non-valuable) waste rock in order to gain access to the orebody. There are six steps in development mining: remove previously blasted material (muck out round), scaling (removing any unstable slabs of rock hanging from the roof and ...

  5. Environmental impact of iron ore mining - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    The main visual and aesthetic impacts of mining are the open pits and waste rock disposal areas. Open-pit mining disturbs larger areas than underground mining making the visual impacts much greater. [13] In addition, the amount of waste rock produced in open pit mines is typically two to three times the amount of ore produced meaning massive ...

  6. 2015 Gold King Mine waste water spill - Wikipedia

    en.wikipedia.org/wiki/2015_Gold_King_Mine_waste...

    The 2015 Gold King Mine waste water spill was an environmental disaster that began at the Gold King Mine near Silverton, Colorado, [2] when Environmental Protection Agency (EPA) personnel, along with workers for Environmental Restoration LLC (a Missouri company under EPA contract to mitigate pollutants from the closed mine), caused the release of toxic waste water into the Animas River watershed.

  7. Trump move opens Utah to Gold Rush-style mining claims under ...

    www.aol.com/news/2018-01-31-trump-move-opens...

    Unlike laws governing petroleum extraction, there are no environmental guidelines specific to hard rock mining, and no requirement to pay a royalty. The claims provide prospectors mineral rights ...

  8. Mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Mining_in_the_United_States

    Mining has a number of environmental impacts. In the United States, issues like mountaintop removal, and acid mine drainage have widespread impacts on all parts of the environment. As of January 2020, the EPA lists 142 mines in the Superfund program. [2]

  9. Gold mining - Wikipedia

    en.wikipedia.org/wiki/Gold_mining

    Hard rock mining at the Associated Gold Mine, Kalgoorlie, Australia, ... [115] [116] The impacts of mining on the environment are long-lasting, ...