Pittsburgh, Pennsylvania, USA. Members of the United Mine Workers of America rallied against the Obama administration's proposed Clean Power Act, which would cut carbon emissions by restricting the use of coal to generate electricity. Credit: Jim West/Alamy Live News

- Image ID: E5H4YG
Pittsburgh, Pennsylvania, USA. Members of the United Mine Workers of America rallied against the Obama administration's proposed Clean Power Act, which would cut carbon emissions by restricting the use of coal to generate electricity. Credit: Jim West/Alamy Live News
Jim West / Alamy Stock Photo
Image ID: E5H4YG
Location: Pittsburgh, Pennsylvania USA

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