Claire Wiley

Anna Robertson, co-founder of The Cool Down, shares her mission to make it easier for everyone to help themselves while they help the planet. She provides tips on how to be more sustainable in our homes, especially as we move into the colder months.

Audrey Thames from the Environmental Center at the University of Colorado in Boulder speaks about student-led sustainability and provides a slew of tips on how to have a more sustainable Halloween.

Award-winning environmental journalist Sophie Yeo explores how the planet might have looked before human activity diminished its diversity in her new book, "Nature's Ghosts, The World We Lost and How to Bring it Back."

Author and explorer Jon Waterman talks about his new book, "Into the Thaw: Witnessing Wonder Amid the Arctic Climate Crisis."

Walt Meier, a senior research scientist at the National Snow and Ice Data Center breaks down the latest information on what's happening with the planet's Arctic sea ice.

Author and scientist, Lauren Oakes comes on the show to talk about how the path from climate change to a habitable future winds through the world's forests.

Nalini Nadkarni, National Geographic explorer and professor emeritus at the University of Utah, talks about the importance of canopy plants and the effects human activities have on forest diversity and function.

Freshwater ecologist and author David Strayer shares details about his latest book, "Beyond the Sea: The Hidden Life in Lakes, Streams and Wetlands."

Author and animal and plant correspondent for the New York Times, Cara Giaimo, discusses her most recent book, "Atlas Obscura: Wildlife."

National Geographic Explorer and internationally acclaimed wildlife expert James Currie shares the evolution of his career from a wildlife safari guide in Africa to a birding show host and conservationist.