"With President Bush set to spend Earth Day in Cades Cove on Friday, the U.S. Environmental Protection Agency is putting the finishing touches on a rule to eliminate haze in the Great Smoky Mountains National Park and other public lands over the next six decades.The EPA has less than two months to complete the agency's haze rule, which will require states to reduce haze-causing pollutants at industrial sites near 156 national parks and wilderness areas."
Read the full story at MSNBC. (Original article appeared in the Knoxville News Sentinel, but their website requires a login)
Read more on the EPA's attempt to promulgate rules to increase visibility in national parks at Environmental News Network. These rules are intended to comply with goals set forth in the Clean Air Act. The EPA agreed to establish these rules by April 15, 2005; however, the deadline has been extended to June 15.
Environmental Defense Fund has been pressuring EPA to promulgate these rules.