Atlas Obscura
October 6, 2017
EACH YEAR, WILDFIRES SCORCH LARGE swaths of the West, and scientists try to predict just how bad the fire season will be for an upcoming year based on moisture levels, weather, and a host of other factors. But fire season isn’t the only annual environmental event that can have catastrophic impacts—take the hurricane or tornado seasons, for example. We can now add hypoxia season to the list, thanks to a familiar culprit—the same one that’s likely been fanning fire season.