Cold air cleansed my lungs as my crampons bit the ice, hungry for the trail after weeks in the garage. February’s frostbite-inducing temperatures had confined most of my runs to the treadmill’s miasma of rubber and sweat. Once the mercury crept into the teens, I pounced on the opportunity to run outdoors again, inhaling the … More Where There’s Smoke: EPA Air Quality Indices Ignore Deadly Wildfire Pollution