Small particulates from fossil fuels are linked to as many as 300,000 excess deaths in the United States each year. And these small, PM 2.5 particulates may also be harming the mental health of children and teens by worsening depression, anxiety, suicidality and more. Also, the Colorado River that carved the Grand Canyon and now quenches the thirst of much of the American West is parched in a “megadrought.” Two key reservoirs are expected to drop to record low levels this year and trigger a formal water shortage declaration. Why supply continues to shrink as demand holds steady.  And a healthier planet also means a healthier society. We’ll look at the intersection of environmental change and human health, and how saving the planet can also save human lives. Learn more about your ad choices. Visit megaphone.fm/adchoices