From the Huffington Post:
The Environmental Protection Agency announced new rules Thursday for coal-fired power plants to help curb the air pollution that has marked the eastern United States for years. The new regulations will affect power plants in 28 states and are scheduled to go into effect in 2012. They will cut millions of tons of soot and smog emissions from power plants at a cost of less than $1 billion per year to utility companies.
Read more here.