This Green Earth

Ecologist, author, and storyteller Mark Elbroch shares an intimate account of one of the world’s most magnificent and misunderstood terrestrial mammals, the mountain lion. (01:26)Then, National Geographic Explorer and photographer Anand Varma illuminates the beautiful and complex layers of the natural world that are otherwise hidden from view. (29:10)

National Geographic Explorer and Photographer Anand Varma walks us through his work to illuminate the beautiful and complex layers of the natural world that are otherwise hidden from view.

What does it mean to have the "Heart of a Lion"? Biologist, author, and storyteller, Mark Elbroch shares an intimate account of one of the world’s most magnificent and misunderstood terrestrial mammals, the mountain lion.

National Geographic Explorer Dr. Heather Lynch shares her experiences studying penguins in Antarctica.

In his new book, The Return of the Oystercatcher: Saving Birds to Save the Planet, New York Times best-selling author Scott Weidensaul explores recovery efforts across the globe that are helping bird populations thrive.

Ornithologist and New York Times bestselling author Scott Weidensaul discusses his new book "The Return of the Oystercatcher: Saving Birds to Save the Planet," exploring how local and global conservation efforts are helping reverse declining bird populations. Then, National Geographic Explorer Dr. Heather Lynch shares her groundbreaking work using satellite imagery to study penguins and other seabirds in Antarctica.

Learning how to live a more sustainable life with Samuel McMullen the CEO and co-founder of ZeroWaste.Org.

Tracing the history of plastic from a revolutionary invention to a modern environmental threat with micro plastics research scientist Abby Barrows and Utah Valley University Associate Professor Dr. Sally Rocks.

Abby Barrows, a leading microplastics research scientist, and Dr. Sally Rocks, an Associate Professor of Chemistry at Utah Valley University, share their exploration of microplastics in both the ocean and our mountains and efforts to reduce their impacts on the environment and ourselves. Then, Samuel McMullen, the CEO and co-founder of zerowaste.org, talks about how the nonprofit helps people, businesses, and cities take concrete steps towards zero waste.

Utah State University biology professor Dr. Joseph Wilson discusses Utah's native wild bees.