 There's new research out about that. The title of a paper published February 6, 2017, in the journal Nature, is Human Exposure and Sensitivity to Globally Extreme Wildfire Events. We've reached the lead author, Dr. David Bowman. David Bowman is professor of environmental change biology at the University of Tasmania's School of Plant Science. He's a visiting fellow or adjunct professor at three other Australian universities. From Hobart, Tasmania, David Bowman, welcome to Radio EcoShock.