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Scott G Winterton, Deseret News
Richard Anderton and Deb Henry join others concerned about the air quality as clean air activists gather to protest against tar sands strip mining Wednesday, Feb. 13, 2013, at Gov. Gary Herbert's office in the state Capitol. The protest, led by Utah Tar Sands Resistance and Peaceful Uprising, was called a "Coff-in" (cough-in) in reference to air quality.

SALT LAKE CITY — Clean air activists gathered to protest against tar sands strip mining Wednesday at Gov. Gary Herbert's office in the state Capitol. The protest, led by Utah Tar Sands Resistance and Peaceful Uprising, was called a "Coff-in" (cough-in) in reference to air quality.