Josh Edelson / AFP via GettyOver the past two decades, a staggering 21.8 million Americans found themselves living within 3 miles of a large wildfire. Most of those residents would have had to evacuate, and many would have been exposed to smoke and emotional trauma from the fire.Nearly 600,000 of them were directly exposed to the fire, with their homes inside the wildfire perimeter.Those statistics reflect how the number of people directly exposed to wildfires more than doubled from 2000 to 2019