What a Supreme Court ruling on mercury standards will tell us

<> What a Supreme Court ruling on mercury standards will tell us - Weeks after the United States Supreme Court froze Environmental Protection Agency (EPA) regulations regarding greenhouse gas output, the tribunal may block a rule aimed at cutting down power plants' toxic emissions. States seek to block mercury pollution rule - Twenty states have asked the Supreme Court in a new application, Michigan v. EPA (15A886), to order federal officials to stop enforcing a four-year-old rule — temporarily nullified by the Court last June — that requires electricity-generating power plants to install technology to curb pollution of the air with mercury and other harmful materials. Application by 20 states to stay or enjoin the MATS Rule – EPA response due Wednesday, March 2, 2016, by 4 p.m. Supreme Court docket No. 15A886 EPA Mercury and Air Toxics Standards (MATS) Website