March 11, 2014
A Colorado federal judge on Tuesday tossed WildEarth Guardians' lawsuit alleging the U.S. Environmental Protection Agency violated the Clean Air Act by allowing Utah and Idaho air pollution to go unabated for years, saying the group couldn't prove that the EPA or the states missed required regulatory deadlines.
May 16, 2013
An environmental group upset over air pollution levels in Utah and Idaho filed a lawsuit Wednesday accusing the U.S. Environmental Protection Agency of violating the Clean Air Act by allowing smoke, soot and other harmful emissions to go unchecked.