Green Frequency

Bioluminescent water that cameras can barely capture.

Environmental filmmaker and researcher Dr. Isabelle Carbonell explores Bio Bay in Vieques, Puerto Rico, one of the brightest bioluminescent bays on Earth, to ask a bigger question: what happens when nature resists visibility? This episode examines environmental filmmaking, underwater cinema, ocean representation, bioluminescence, and the limits of visual storytelling. The convers...

How many species are there on Earth? Marine biologist and taxonomist Manuel Caballero Gutierrez explains how scientists estimate global biodiversity, discover new species, and why humanity may currently know only around 25% of the life forms that exist on this planet. This episode of Green Frequency explores taxonomy, ocean exploration, extinction, climate change, and the long scientific process of naming and cataloguing species. F...

Colonial law helped shape modern deforestation. Legal historian Mariana Dias Paes explains how 19th-century property law, land dispossession, and colonial legal systems accelerated rainforest destruction in Brazil’s Atlantic Forest and continue to influence environmental conflicts today. This episode of Green Frequency explores colonialism, Indigenous land rights, private property, environmental history, and the legal foundat...

We already understand many of the world’s biggest problems. So why are they still unsolved? A lot of the science is in. We know what is driving climate change, biodiversity loss, and pressure on global food systems. But knowledge alone does not create change. Somewhere between evidence and action, people have to make decisions. This episode explores that space.

Using food systems as a case study, this conversation looks at wha...

Water is simple to drink, but complex to understand. Water is essential to life, yet 2 billion people lack reliable access to clean drinking water. At the same time, millions of tons of plastic waste come from single-use bottles each year. So what actually makes water “sustainable”? Environmental scientist and water sommelier Dr. Elena Berg uses drinking water as a case study to unpack the complexity of sustainability f...

Climate justice explained: beyond emissions and policy. What does climate justice actually mean—and why is it so hard to define? This episode of Green Frequency breaks down climate justice as both a political and ethical challenge, not just an environmental one. Political scientist Dr. Rebecca Marwege explores how climate change reflects global inequalities, from coastal communities in Senegal to post-disaster recovery in New...

Where does climate change stand in 2026? In this first episode of Green Frequency, we take a grounded look at the state of climate change today. Where progress is being made, where challenges remain, and what the data actually tells us.

Featuring a conversation with climate scientist Dr. Claudio Piani and student activist Averie Gannon, this episode explores global emissions trends, the future of the Paris Agreement, and why every f...

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-wor...