Studies show these trends are linked to manmade global warming, although individual fires like the one on Tuesday are often triggered by arson, lightning and other causes. Additional reporting by the Associated Press. Have something to add to this story? Share it in the comments. Andrew Freedman...
Coal-seam fires, ignited by forest fires and lightning, are less studied in Canada. The Smoking Hills in the Northwest Territories have been burning continuously for centuries, although the release of PACs has not been studied (Bustin and Mathews, 1985; Estrada et al., 2009; Havas and Hutchin...