NEW YORK--(BUSINESS WIRE)--The U.S. Supreme Court's decision requiring the U.S. Environmental Protection Agency (EPA) to take industry costs into account before it resumes its Mercury and Air Toxic Standards (MATS) is positive for a few public power entities but will not affect most, Fitch Ratings says. Utilities with high concentrations of coal-fired capacity that have struggled with the decision to install expensive pollution control equipment will now likely face a longer time frame for comp