As wildfire smoke continues to drift into Michigan from Canada, experts say the increasing frequency and intensity of wildfires across North America are tied to a combination of climate change and decades of forest management practices. “Fires are a natural part of many forest ecosystems,” said Chad Papa, the Director of the Forest Carbon and Climate Program Department of Forestry at Michigan State University. “But what we’re seeing now is a major departure from historic fire regimes, with hotter, more catastrophic fires and slower forest recovery.” In the western U.S., a history of fire suppression and reduced timber harvesting has led to denser forests that are more prone to combustion. Laws enacted in the 20th century often restricted controlled burns, which experts said have contributed to overgrown conditions that increase wildfire risk.