As President Barack Obama prepares to announce tougher new air quality standards, lawmakers in several states already are trying to blunt the impact on aging coal-fired power plants that feed electricity to millions of consumers.
St. Louis based mining outfit says it will lay off more than 100 workers in Kentucky and Virginia.
Some 10,000 coal miners faced down a dug-in army of police and private security guards in a battle that left 16 men dead before the miners surrendered to federal troops.
Blagojevich Administration gets credit for environmental rule-tightening in 2007.
Arch Coal has submitted a successful bid of just over $300 million for the right to mine more than 200 million tons of coal.