EPA Greenhouse Gas Rules Face Court Challenge

Scientific American:

Three federal judges will hear arguments on Tuesday and Wednesday at the D.C. Court of Appeals from groups seeking to overturn the regulations and also convince the judges that the science used by the EPA is wrong.
The EPA's raft of recent clean air rules has divided the power industry between companies that have moved toward cleaner energy, including Exelon and NextEra and those who generate most of their power from coal, including Southern Co and American Electric Power.
Environmental groups and activists concerned about global warming support the EPA regulations because the U.S. Congress has not enacted legislation to cap emissions.
The petitioners, who combined a dozen separate similar lawsuits under the name the Coalition for Responsible Regulation, will target four EPA rules:
* The "endangerment finding" - the scientific finding made by the EPA in December 2009 that found that greenhouse gases endanger public health, enabling the agency to regulate them under the Clean Air Act.
* The "tailpipe rule" - the May 2010 rule, which set greenhouse gas emission and fuel economy standards for new light-duty vehicles.
* The "timing rule" - the April 2010 rule that will require generators and industrial plants to apply for permits to cover greenhouse gas emissions once the rules for vehicles kick in.
* The "tailoring rule" issued in June 2010, which set a timeline to start requiring those industrial and utility sources to apply for permits according to the scale of their emissions.
On Friday, the EPA proposed that only the largest polluters would be required to hold carbon permits. The move was aimed at reducing burdens on states and local government permitting agencies.

All I can say about the new rules is that on the business side, they only targeted large industrial generators.  Neither of the businesses which I file paperwork for were close to being regulated.  They don't even have to report emissions of greenhouse gases.  In the end, businesses and consumers have to pay for their externalities.