Green Frequency | Environmental Science & Earth Radio

Why are we afraid of the deep sea, and how does that fear shape our relationship with it? Professor Alan Jamieson, deep-sea scientist and co-host of The Deep-Sea Podcast, joins Green Frequency to explore the complicated relationship between public perceptions of the deep ocean and our willingness to understand and protect it. Drawing on his paper Fear and Loathing of the Deep Sea, we examine the origins of thalassophobia, the influence of popular culture, and the role scientists and science communicators play in shaping public understanding. We challenge some of the most persistent narratives about deep-sea exploration and ask how changing the stories we tell might help us better appreciate the largest living environment on Earth.

And fittingly, Professor Jamieson joins us from aboard a research vessel in the Atlantic Ocean, hundreds of miles offshore.

Episode Guests: Professor Alan Jamieson

Listen to theDeep Sea Podcastand Professor Jamieson’s episode on Oceanography about Deep Sea Trenches

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What does it actually take to combat desertification? From satellites and sustainable land management to international negotiations, the world has a growing toolkit to address land degradation and drought. But putting those solutions into practice is another story.

In Part 2 of our coverage of the UN Convention to Combat Desertification (UNCCD) COP17 in Ulaanbaatar, Mongolia, we're moving from the problem to the solutions. Host Clark Marchese speaks with Dr. Tatenda Lemann of the University of Bern and WOCAT about the science of sustainable land management, the importance of local knowledge, and what makes restoration projects successful. Then, Dr. Pamela Chasek, Executive Editor of the Earth Negotiations Bulletin, helps us unpack the politics of COP17, from international cooperation and financing to the negotiations that left countries divided over drought.

Along the way, we hear directly from delegates and officials at COP17 to explore how science, policy, and people come together to protect the land we depend on.

Because knowing what works is only half the battle. The other half is making it happen.

Further reading and resources:

• WOCAT – Global Sustainable Land Management
• Earth Negotiations Bulletin – IISD
• United Nations Convention to Combat Desertification

Green Frequency is an Earth Radio Show from Pine Forest Media, exploring environmental science, conservation, and the global decisions shaping our planet.

Episode Guests: Dr. Tatenda Lemann and Dr. Pamela Chasek

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What is desertification, why is land degrading around the world, and what can Mongolia teach us about the causes? In Part 1 of Green Frequency’s coverage of UNCCD COP17 in Ulaanbaatar, host Clark Marchese explores the science and politics of land degradation, from the origins of the UN Convention to Combat Desertification and Land Degradation Neutrality to the pressures facing Mongolia’s vast grasslands.

Featuring audio from inside COP17 and reporting from Mongolian journalist Turmunkh Gongorjav, the episode examines climate change, drought, overgrazing, mining, urbanization, coal and the growing demand for critical minerals. It also asks a deeper question: whose knowledge counts when governments decide why land is degrading?

From Fiji’s coastal farmland to Mongolia’s rangelands, this episode explores how land degradation looks different around the world, why local and Indigenous knowledge matters, and how the way we diagnose environmental problems shapes the solutions we pursue. Part 2 turns to sustainable land management, science and technology, finance, and the political outcomes of COP17.

Episode Guest: Turmunkh Gongorjav

Read Turmunkh Gongorjav’s article here

Interview translated and recorded by Nomin Byambatsogt

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Ocean technology cannot operate alone. Nicolas Pade, executive director of the European Marine Biological Resource Centre, joins Green Frequency to unpack five policy recommendations emerging from Blue Tech Europe 2026. We explore technological sovereignty, strategic procurement, collaboration between academia and industry, usable ocean data, market demand and the skills needed to sustain ocean-observation systems. Although developed for Europe, many of these questions apply wherever science must become lasting public infrastructure. And we ask what happens when what markets consider viable is not necessarily what society considers valuable.

This is a companion to the Oceanography episode, What Do We Need From Ocean Technology?

Episode Guest: Nicolas Pade

Visit the EMBRC website or follow the EMBRC on LinkedIn

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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 theDeep 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

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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’sdissertation 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 http://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 Climate
• Solar Geoengineering: Who Gets to Decide?

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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

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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

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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

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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 herwebsite

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Audio Editing by Clark Marchese, Video Editing by Oscar Padula

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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

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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

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Audio Editing by Clark Marchese, Video Editing by Madelyn Cho Weir

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Science alone does not make environmental change. Amanda Harding and Sarah Glavan of Convene explore the missing space between research, environmental policy, and the decisions people make inside real systems. Using food systems and the EAT-Lancet Commission as a case study, they explain deliberate dialogue and science-policy-society interfaces: structured spaces where researchers, farmers, fishers, Indigenous communities, health professionals, policymakers, and consumers can work through disagreement and power. The episode shows why ecological research cannot simply be handed down as instructions, why lived experience is also a form of knowledge, and how listening can help turn evidence into action. A practical look at what climate solutions require once the science is already available.

Episode Guests: Amanda Harding and Sarah Glavan

Visit the Convene Website to learn more about Deliberate Dialogue

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Hosted by Clark Marchese

Audio Editing by Clark Marchese, Video Editing by Oscar Padula

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Drinking water reveals sustainability's complexity. Environmental scientist and water sommelier Dr. Elena Berg uses bottled water to show why environmental choices rarely divide neatly into good and bad. She traces how geology and mineral content create differences among waters, contrasts multinational bottlers with smaller single-source producers, and examines plastic waste, freshwater access, infrastructure, and environmental justice. The conversation also asks what sustainability means when every product carries an environmental cost and warns against treating it as a label or completed checklist. From tap water and water tasting to the stewardship practiced by some small water farmers, this episode offers an interdisciplinary environmental science case study in how context changes both the problem and the available response.

Episode Guest:Dr. Elena Berg

Listen to Something in the Water on Spotify or Apple Podcasts

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Hosted by Clark Marchese

Audio Editing by Clark Marchese, Video Editing by Oscar Padula

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Climate change is never socially neutral. Political scientist Dr. Rebecca Marwege explains climate justice by examining who caused the crisis, who experiences the greatest harm, and who has the resources and power to respond. Cases involving the Lebu fishing community in Senegal and Far Rockaway after Hurricane Sandy show how climate adaptation, displacement, rebuilding, and even the ability to remain at home are shaped by inequality. The episode distinguishes climate justice from environmental justice and warns against reductionism, inverse reductionism, and technological solutionism. It makes the case for interdisciplinary research that joins environmental science with political, social, and ethical analysis so that climate policy protects communities instead of reproducing existing injustice.

Episode Guest: Dr. Rebecca Marwege

Learn more about Dr. Marwege’s research on her website

Discover the recently publishedClimate Justice Now, edited by Dr. Rebecca Marwege, Dr. Nikhar Gaikwad and Dr. Joerg Schaefer

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Hosted by Clark Marchese and Allison Thompson

Audio Editing by Clark Marchese, Video Editing by Oscar Padula

Videography and Set Design by Le Studio Du Passage

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Theme music by Nela Ruiz

Find some more Pine Forest Media podcasts below

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Climate progress is real, but nowhere near enough. In the first episode of Green Frequency, climate scientist Dr. Claudio Piani joins student activist Averie Gannon to assess climate change in 2026 through evidence rather than denial or catastrophe. They examine global and per-capita emissions, areas of progress in the United States and Europe, the falling cost of renewable energy, and what current national commitments mean for the Paris Agreement. The conversation explains why the 1.5-degree target is probably out of reach, why that does not make climate action futile, and why every tenth of a degree still protects lives and ecosystems. A grounded introduction to climate science, climate policy, and the difficult work still ahead.

Episode Guest: Dr. Claudio Piani

WATCH THE FULL VIDEO ON YOUTUBE

Special thanks to the American University of Paris

Our World In Data - CO2 emissions, temperature, and per capita trends.

The Scientific American - Global Average Temperature Targets

International Renewable Energy Agency - The Cost of Renewable Energy

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Hosted by Clark Marchese and Averie Gannon

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

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Green Frequency: Earth Radio is an environmental science podcast exploring the research, stories, and decisions shaping our planet.

Each week, we unpack emerging environmental research, hear stories from civil society and the frontlines of conservation, and follow developments in global environmental policy and climate action.

From forests and oceans to courtrooms and conference halls, Green Frequency connects science to the real-world contexts where it is applied across communities, institutions, and global systems.

Hosted by Clark Marchese, founder of Pine Forest Media, the show brings together scientists, journalists, and practitioners from around the world to share knowledge, perspectives, and solutions.

This is Earth Radio. A place to tune in, stay curious, and listen closely.

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