TRAVERSE CITY (AP) -- A federal panel wants state regulators to take another look at a permit issued to Northern Michigan University in Marquette for a power plant fueled partly by coal.
An appeals board with the Environmental Protection Agency ordered the state to consider setting limits on emissions from the plant of carbon dioxide and nitrous oxide. They are greenhouse gases believed to contribute to global warming.
The board also ruled this week that the Michigan Department of Environmental Quality erred in the way it limited emissions of sulfur dioxide from the boiler.
The DEQ issued an air quality permit to the university last May for the plant, which would provide heat and electricity by burning a combination of coal, wood and natural gas.
The Sierra Club challenged the permit before the EPA.
(Copyright ©2009 by The Associated Press. All Rights Reserved.)
