Josh Schlossberg is a Denver, Colorado-based investigative journalist who writes about ecology, wildlife, climate change, and energy for various publications including EnviroNews, Truthout, Earth Island Journal, Denver Westword and Boulder Weekly. You can follow him on Twitter at @JoshSchlossberg. Today we talk about how mountain lions can help stop chronic wasting disease in deer, elk, and moose.

Martin Lee Mueller received his doctorate in philosophy from the University of Oslo in 2016. He has previously helped build teaching centers in rural Mongolia, worked as a kindergarten teacher, been an elementary school librarian, and led a wilderness school in the Norwegian forest. His book Being Salmon, Being Human was recently awarded a Nautilus Book Award. The book has also inspired a stage performance, a joint project between Martin, two storytellers and a Sami joiker. Their group has previously played in the UK and Scandinavia. This summer, they are coming to the Pacific West Coast to perform in communities between British Columbia and California. Martin lives in Oslo together with his partner and daughter, near a small stream that has yet to see its salmon return from extinction.

Suprabha  Seshan has lived and worked for twenty-five years at the Gurukula Botanical Sanctuary in the Western Ghat mountains of India. The Sanctuary is a centre for plant conservation, habitat restoration and environmental education and also a community. In 2006, on behalf of the Sanctuary she won the Whitley Award, UK's top prize for nature conservation. She is an Ashoka Fellow. Her new book, available next year, is called Rainforest Etiquette in a World Gone Mad.

Alastair McIntosh (Scotland) has been described by BBC TV as “one of the world’s leading environmental campaigners.” A pioneer of modern land reform in Scotland, he helped bring the Isle of Eigg into community ownership. On the Isle of Harris he negotiated withdrawal of the world’s biggest cement company (Lafarge) from a devastating “superquarry” plan, then agreed to serve (unpaid) on that company’s Sustainability Stakeholders Panel for 10 years.  Alastair guest lectures at military staff colleges, most notably the UK Defence Academy, on nonviolence. His books include Soil and Soul: People versus Corporate Power (Aurum), Hell and High Water: Climate Change, Hope and the Human Condition (Birlinn), Rekindling Community (Green Books) and Spiritual Activism: Leadership as Service (Green Books). His most recent major work is Poacher’s Pilgrimage: an Island Journey (Birlinn 2016, cascade, 2018). He is a fellow of the School of Divinity at the University of Edinburgh and a visiting professor at the College of Social Sciences, University of Glasgow. His website is www.AlastairMcIntosh.com and Twitter @alastairmci.

Bittu Sahgal is the Founder of the Sanctuary Nature Foundation, Editor of Sanctuary Asia, India's first and largest circulating wildlife and ecology magazine and Founder-Editor of Sanctuary Cub, India’s oldest and only wildlife magazine for children. He has been closely involved with Project Tiger since its inception in the 1970s, and has spent over four decades writing about conservation issues in books, magazines and newspapers in both English and regional languages. He has also produced 30 wildlife documentaries, and led national and international environmental campaigns across media platforms, including social media. He created Kids for Tigers, a conservation programme for school children that has reached over a million children and has run continuously for almost two decades.He has served on a range of government and non-government organisation boards and committees over the last 30 years, including the National Board for Wildlife (Government of India), the IUCN (World Conservation Union), The Wild Foundation (U.S.A) and the Expert Appraisal Committee for Infrastructure, Ministry of Environment and Forests, Government of India. He works with policymakers, social workers, economists and scientists at the tri-junction of biodiversity, climate change and economics, speaking at national and international platforms in support of wilderness conservation while continuing to spearhead the work of the Sanctuary Nature Foundation.

Fiona Corke is an Australian actor, wildlife campaigner and activist. For 8 years she has volunteered as Vice President for the Australian Society for Kangaroos raising awareness of the beauty and also the cruel fate of kangaroos slaughtered for damage mitigation by farmers and government departments and the commercial kangaroo industry for their meat and skins.In 2007 Fiona cofounded the Macedon Ranges Wildlife Network, where she lives. The network is actively involved in wildlife rescue, wildlife care and rehabilitation and raises awareness of the risks and threats wildlife faces from human interaction and imminent development. Today we talk about corellas.

Paul R. Ehrlich has been a household name since the publication of his 1968 bestseller, The Population Bomb. He is Bing Professor of Population Studies Emeritus and President of the Center for Conservation Biology at Stanford University. Ehrlich is a member of the National Academy of Sciences and a recipient of the Crafoord Prize (an explicit substitute for the Nobel Prize in fields of science where the latter is not given), the Blue Planet Prize, and numerous other international honors. He investigates a wide range of topics in population biology, ecology, evolution, human ecology, and environmental science. Much of his current effort is focused on the mechanisms of human cultural evolution and ways of directing that evolution to ameliorate the human predicament.

Barry Rosenberg lives with his wife Cathe off grid in remote wooded location in Priest Lake, ID. He’s the founding chair of the Selkirk Conservation Alliance; Forest Watch Director for the Inland Empire Public Lands Council, and executive director for the Kootenai Environmental Alliance in CdA, ID.

Jonathan R Latham, PhD is co-founder and Executive Director of the Bioscience Resource Project and the Editor of Independent Science News. Dr Latham is also the Director of the Poison Papers project which publicizes documents of the chemical industry and its regulators. Dr. Latham holds a Masters degree in Crop Genetics and a PhD in Virology. He was subsequently a postdoctoral research associate in the Department of Genetics, University of Wisconsin, Madison. He has published scientific papers in disciplines as diverse as plant ecology, plant virology, genetics and genetic engineering. Dr Latham talks frequently at international events and scientific and regulatory conferences on the research conducted by the Project. He has written for Truthout, MIT Technology Review, the Guardian, Resilience, and many other magazines and websites. Today we talk about the poison papers project.

Deanna Meyer is a long time environmental activist and is a member of Deep Green Resistance and is also the founder and executive director of Prairie Protection Colorado. Meyer's work currently centers on the protection and preservation of prairie dog communities up and down Colorado's Front Range.Today we talk about state and federal wildlife departments that kill wildlife.