This Green Earth Chris Cherniak, Claire Wiley

Venture into the world of cicadas and unravel some of the mysteries of their biogeography, evolutionary adaptations, and the ecological significance of their cyclical emergence. Then, author Boyce Upholt takes us through the history of the Mississippi River.

Learn about how Park City residents can reduce the amount of waste going into the landfill with Park City Community Foundation’s Eyee Hsu and Andy Hecht.They will discuss the launch of a residential curbside food waste collection as part of its Zero Food Waste initiative.Then, EarthDay.org’s Aidan Charron discusses fast fashion and its effects on our planet, as one of the leading causes of deforestation.

Walt Meier, a senior research scientist at the National Snow and Ice Data Center, breaks down the data and latest developments regarding the 2024 sea ice extent and what this means for our future.Then they revisit a conversation from earlier this year with author and CBS News national correspondent Jonathan Vigliotti, who discusses his newly released book, "Before it's Gone: Stories from the Front Lines of Climate Change in Small-Town America."

Chris and Claire talk noxious weeds with Sara Jo Dicken at Ecology Bridge and how the public can help fight noxious weeds. Then, geophysicist Duncan Agnew discusses a study regarding global timekeeping and global warming.

Award-winning author David Quammen, an American writer who focuses on science, nature and travel, talks about his work over the years and what’s next. Then, Bonnie Monteleone from the Plastic League Project discusses the organization’s latest studies and what they are doing to clean up our oceans.

Award-winning environmental journalist, Zoë Schlanger who speaks about her new book, "The Light Eaters," a deep immersion into the drama of plant life and the complexity of this wild and awe-inspiring world that challenges our very understanding of agency, consciousness, and intelligence.Then, Biologist Naira de Gracia walks us through her new book, "The Last Cold Place – A Field Season Studying Penguins in Antarctica," which offers a dramatic and captivating window into Antarctica and a generation of chinstrap penguins.