Credit: Felix Schickel from Pexels We tend to think of climate change impacts as dramatic and destructive. Storms and floods that bring down landslides and swamp streets, or raging wildfires that tear through forests and farmland. Heat waves, by contrast, often pass for many with little more than a few sleepless nights and headlines about hot weather. What we don't see is the human cost that is often only counted long after the event is over . It's seen in spikes in mortality rates—or in hospital admissions for heatstroke, dehydration and heart problems—that correspond with the worst days or weeks of the heat. More than a third of heat-related deaths are already attributable to climate change , and the risks will only rise as global temperatures continue to climb, with heat extremes projected to become more intense and more frequent in the decades ahead. As warming continues, just what might future heat exposure look like? And what difference might today's decisions make in changing the math?…