This Green Earth airs on KPCW at 9am following NPR news and the Local News Hour. Today, Nell and Chris's guests include: (02:23) Professor Emeritus William Lowry, who discusses Requiem for America's Best Idea: National Parks in the Era of Climate Change; a book about our National Parks written by Michael Yochim. Yochim worked as a park ranger for 22 years at Yellowstone National Park, as well as Yosemite, Grand Canyon and Sequoia before he was diagnosed with ALS. While Yochim wrote this book, he used just his eyes and an eye-tracking machine. The book establishes a parallel between the author's terminal illness and the state of the National Parks, and Lowry wrote the forward to the book. (20:59) Jordan Clayton from Utah Snow Survey then joins This Green Earth to speak about the March water report and projections as we head into our warmer months.Nell and Chris end the hour discussing (44:24) Charles Darwin's missing notebooks, taken from Cambridge Library, have been returned more than 20 years later, (46:30) one of their favorite interviews of the past about stolen feathers from the British Natural History Museum, (47:14) the National Weather Service cutting back weather balloon launches, and (48:22) Swaner Ecocenter's event tonight from 7-9pm called Lights Out.