Supreme Court Rules Against EPA Mercury Emission Limits

The Supreme Court ruled Monday against the Obama administration's attempt to limit power plant emissions of mercury and other hazardous air pollutants.
Though, it may only be a temporary setback for regulators.
Split 5-4 along ideological lines, the Justices ruled that the Environmental Protection Agency failed to take cost into account when it first decided to regulate the toxic emissions from coal- and oil-fired plants.
The EPA did factor in costs at a later stage, when it wrote standards that are expected to reduce the toxic emissions by 90 percent.
The court said that was too late.
These rules will remain in place while the case goes back to a lower court for the EPA to decide how to account for costs.