On this week’s episode, Nathan, Mike, and Mahler talk about the popcorn shortage, catnip, phylogenetic trees, the Mr. Trash Wheel Family, how a U.S. single-payer health care would have saved 338,000 lives from COVID-19, the Colorado River system, the Yellowstone National Park flood, a trans-continental aquifer system, microplastics in fresh Antarctic snow, PlookGanja, cow burps, and so on.