Read the full story in The Mining Journal.
Summer vacation season is upon us, with camping, hiking and other outdoor activities. For some of us, that means visiting remote locations in the Great Lakes region, such as Isle Royale National Park, Sleeping Bear Dunes National Lakeshore and Pictured Rocks National Lakeshore.
Still others set their GPS for historic locales such River Raisin National Battlefield Park in Monroe and Keweenaw National Historic Park in the western Upper Peninsula.
Wherever you’re heading, there are air pollution problems, according to a new report by the National Parks Conservation Association, an advocacy group based in Washington, D.C.