ScienceDaily: Based on the number of acres burned, 2015 is shaping up to be the second most extreme fire year during the past decade in North America's boreal region. Historically, the area has had one or fewer extreme fire years per decade. This season, 15 million acres burned in Alaska and Canada, according Northern Arizona University's Michelle Mack, researcher and biological sciences professor, who is leading a NASA-funded project to measure the severe fire impacts in North America. "In the boreal region,...