Green Frequency | Environmental Science & Earth Radio

Green Frequency is an environmental science and climate action podcast for people who want to understand what is happening to the planet and how change becomes possible. Hosted by science communicator and Pine Forest Media founder Clark Marchese, this Earth Radio show connects ecological research with conservation stories, environmental justice, and the global policies shaping our future. Through deep-dive interviews, narrative reporting, and field coverage from international environmental summits and conservation frontlines, Green Frequency brings scientists, advocates, policymakers, artists, and communities into the same conversation. From climate change and biodiversity to environmental law, adaptation, oceans, forests, and the human work behind lasting solutions, the show offers clear context, global perspectives, and grounded reasons to stay engaged. Hosted on Acast. See acast.com/privacy for more information.

  1. Sep 1

    Night at the Natural History Museum of New Zealand

    What happens behind the exhibits at a natural history museum? At Te Papa Tongarewa, the Museum of New Zealand, millions of specimens form a scientific record stretching across species, ecosystems, and generations. In this episode of Green Frequency, Clark is joined by deep-sea researcher and curator of fishes Dr. Thom Linley to explore what those collections are actually for. We find out why researchers sometimes need to borrow a shark, how curators decide what to preserve for scientists a hundred years from now, and how technologies like micro-CT scanning, hyperspectral imaging, and machine learning are changing what we can learn from specimens collected decades ago. Along the way, we encounter snailfish, bioluminescence, colossal squid, the world's friendliest "meat library," and a much bigger question: what does it mean for a museum to preserve the memory of a changing natural world? Episode Guest: Dr. Thom Linley  Listen to the Deep Sea Podcast And Dr. Linley’s episode on Oceanography, What is the Deep Sea Even Like? Visit the Te Papa Tongewera Museum website  Review Dr. Linley’s publications on Google Scholar Explore the Pine Forest Media digital ecosystem on our website Follow us on Social Media @pineforestmedia Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

  2. Aug 17

    Coffee and Cocoa: Global Warming and Geoengineering Scenarios

    What would happen to coffee and cocoa if humans deliberately tried to cool the planet? Atmospheric scientist Dr. Nina Grant joins Green Frequency to explain stratospheric aerosol injection, or SAI, a proposed form of solar geoengineering that would introduce reflective particles into the upper atmosphere. Drawing on climate and crop modeling for cocoa in Ghana and coffee in Brazil, Nina explains why lowering global temperatures may not be enough. In her modeled scenarios, SAI softened projected losses but did not return either crop to present-day yields. The conversation opens the black box of climate models, explores the importance of rainfall and agricultural management, and reveals how one planetary intervention could produce very different outcomes around the world. It also confronts the much larger questions surrounding ozone loss, termination shock, climate justice, and governance. SAI would not remove carbon dioxide or replace phasing out fossil fuels. But as scientific and political interest grows, understanding what it could change, whom it might help, and who gets to decide is becoming a public question. Episode Guest: Dr. Nina Grant Read Dr. Grant’s dissertation and watch a short video explainer  Review Dr. Grant’s other publication on Google Scholar Connect with Dr. Grant on LinkedIn or visit Dr. Grant’s website Learn more about SAI at solargeo.org  Green Frequency Ep. 1: Climate change | Where are we now? 5 episode of Oceanography on marine climate intervention:  mCDR: Can the Ocean Store Our Carbon for Centuries?Marine Cloud Brightening: Can Brighter Clouds Cool the Planet?Stratospheric Aerosol Injection: Should We Reflect More Sunlight?A Natural Experiment in the Sky: Shipping, Clouds, and ClimateSolar Geoengineering: Who Gets to Decide? Explore the Pine Forest Media digital ecosystem on our website Follow us on Social Media @pineforestmedia Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

  3. Aug 4

    What Are We Going to Do About These Heat Waves? Lessons from India

    Heat waves are arriving earlier, lasting longer, and reaching further into daily life. So what do we do before the next one arrives? Climate researcher Kartikeya Bhatotia joins Green Frequency to explain what decades of research and experimentation in India can teach a rapidly warming world. Drawing on Critical Perspectives on Extreme Heat in India, he explores why heat is more than a temperature, how housing, labor, gender, health, and access to cooling shape exposure, and why adaptation cannot be reduced to air conditioning or emergency alerts. The conversation moves through India’s pioneering heat action plans, anticipatory finance, passive cooling, parametric insurance, and the idea of a “cool economy.” India emerges not only as a country facing extreme heat, but as a source of adaptation knowledge. These strategies do not replace a fossil fuel phaseout; they show how governments can protect people from the heat already here, before the worst arrives.  Episode Guest: Kartikeya Bhatotia Read the full report here Connect with Kartikeya here Follow Kartikeya’s Substack Explore the Pine Forest Media digital ecosystem on our website Follow us on Social Media @pineforestmedia Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

  4. Jun 9

    Mountain Gorilla Conservation: The Work Ongoing

    Mountain gorilla recovery proves change is possible. Gorilla Doctors Chief Communications Officer Amy Bond joins environmental scholar Dr. Elena Berg to examine how long-term conservation succeeds and how people remain engaged when progress is slow and uncertain. Bond explains how Gorilla Doctors provides veterinary care to eastern gorillas in Rwanda, Uganda, and the Democratic Republic of the Congo while keeping animals with their families in the wild. The conversation connects ecological research, cooperation, communication, and sustained institutional work to the recovery of mountain gorillas, the only great ape whose population is increasing. It also explores climate anxiety, environmental agency, hope, and the emotional discipline required to continue working without guarantees. A conservation story about measurable progress and the work that must continue.  Episode Guests: Amy Bond and Dr. Elena Berg Discover more about Gorilla Doctors Explore the Pine Forest Media digital ecosystem on our website Find the full-length video on YouTube @PineForestPods Follow us on Social Media @pineforestmedia Audio Editing by Clark Marchese, Video Editing by Oscar Padula Videography and Set Design by Le Studio Du Passage Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

  5. Jun 3

    Environmental Filmmaking and the Limits of Seeing

    Some environmental wonders resist the camera. Environmental filmmaker and cinematographer Dr. Isabelle Carbonell takes listeners to Bio Bay in Vieques, Puerto Rico, where dense concentrations of dinoflagellates create brilliant bioluminescence that cameras struggle to capture. That technical failure becomes a question about visibility, wonder, embodiment, and whether an imperfect image can open other ways of knowing nature. Carbonell also situates the bay within Vieques's history of colonial extraction, United States military occupation, contamination, and slow environmental violence. The result is an exploration of environmental filmmaking and visual storytelling that asks what environmental communication loses when it values only spectacular images, and what environmental justice can reveal about the things that remain unseen. Episode Guest: Dr. Isabelle Carbonell Discover more of Dr. Carbonell’s work on her website Explore the Pine Forest Media digital ecosystem on our website Find the full-length video on YouTube @PineForestPods Follow us on Social Media @pineforestmedia Audio Editing by Clark Marchese, Video Editing by Oscar Padula Videography and Set Design by Le Studio Du Passage Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

  6. May 26

    How Many Species Are There on Earth?

    Most of Earth's species remain unknown to science. Marine biologist and taxonomist Dr. Manuel Caballero Gutierrez explains how scientists estimate global biodiversity and why humanity may currently know only about 25 percent of the species that exist. He walks through taxonomy as scientific detective work, from deep-sea expeditions and specimen collection to anatomical study, DNA analysis, museum archives, formal naming, and publication. The episode examines biodiversity loss, why the shortage of taxonomists matters, how scientific knowledge can disappear with individual specialists, and why species may go extinct before humanity knows they exist. An expansive introduction to biodiversity, ocean exploration, and the ecological research that conservation depends upon. Episode Guests: Dr. Manuel Callebar Gutierrez Browse Dr. Callebar Gutierrez’s publications on Research Gate WATCH THE FULL VIDEO ON YOUTUBE Explore the Pine Forest Media digital ecosystem on our website Find the full-length video on YouTube @PineForestPods Follow us on Social Media @pineforestmedia Audio Editing by Clark Marchese, Video Editing by Oscar Padula Videography and Set Design by Le Studio Du Passage Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

  7. May 20

    Colonial Law and Deforestation: When Laws Destroy Nature

    Colonial law helped build modern deforestation. Legal historian Dr. Mariana Dias Paes traces how nineteenth-century property law created mechanisms for land dispossession and environmental destruction in Brazil's Atlantic Forest. Her research connects that history to the Amazon and Congo rainforests, where colonial legal systems continue to shape land disputes, court decisions, Indigenous rights, and conservation. Rather than treating environmental law only as a solution, the episode examines how law helped create the conditions for rainforest loss and why those structures persisted after independence. This is an environmental history of private property, colonialism, and the legal architecture still influencing environmental policy, environmental justice, and forest conservation today. Episode Guests: Dr. Mariana Dias Paes Browse Dr. Dias Paes’ publications on Google Scholar WATCH THE FULL VIDEO ON YOUTUBE Explore the Pine Forest Media digital ecosystem on our website Find the full-length video on YouTube @PineForestPods Follow us on Social Media @pineforestmedia Audio Editing by Clark Marchese, Video Editing by Madelyn Cho Weir Videography and Set Design by Le Studio Du Passage Cover Art by Laurel Wong Theme music by Nela Ruiz Find some more Pine Forest Media podcasts below Listen to Oceanography on Spotify or Apple Podcasts Listen to Plastic Podcast on Spotify or Apple Podcasts Listen to South Pole on Spotify or Apple Podcasts Listen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.

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Ratings & Reviews

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About

Green Frequency is an environmental science and climate action podcast for people who want to understand what is happening to the planet and how change becomes possible. Hosted by science communicator and Pine Forest Media founder Clark Marchese, this Earth Radio show connects ecological research with conservation stories, environmental justice, and the global policies shaping our future. Through deep-dive interviews, narrative reporting, and field coverage from international environmental summits and conservation frontlines, Green Frequency brings scientists, advocates, policymakers, artists, and communities into the same conversation. From climate change and biodiversity to environmental law, adaptation, oceans, forests, and the human work behind lasting solutions, the show offers clear context, global perspectives, and grounded reasons to stay engaged. Hosted on Acast. See acast.com/privacy for more information.

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