Environmental Clean Air Advocates Challenge Weak Air Pollution Requirements for Minnesota’s National Parks and Wilderness Areas by Gary Kopycinski on August 14, 2012 Gary Kopycinski Author More in Environmental: People Outside Will Be Injured: Severe Thunderstorms Strike Park Forest March 31, 2026 Park Forest Officials Urge Residents to Protect Pipes as Coldest Air of the Season Continues December 14, 2025 Park Forest Workshops Join Global Effort to Prevent Bird Collisions August 21, 2025 Stronger protections for the Boundary Waters and Voyageurs National Park would improve public health, the economy, and iconic places