- Race to 2050: Modern Agriculture Show
- Radiación solar y Calentamiento global
- Radio 23
- Radio Amazonía
- Radio apocalisse
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- Radio Bumi
- Radio ciencia
- Radio PSA Why switching to Electric is important?
- Radio-Active-Radio
- Radio-Saturada
- Raices Del Cambio
- Ramblings Of A Mathwoman
- Ramita
- Random Rants : Plastic Dilemma
- Raumnutzungskonflikte
- Raungan Api
- Raven And Apes
- RawAg Podcast
- Ray...
- Real Organic Podcast
- Realidad Virtual
- Rebuilding Australia: Our Animals and Land
- Rebuilding the Rainforests
- Reciclagem
- Reciclaje Y Medio Ambiente
- Recursos energéticos
- Recursos energéticos, tecnología
- Recursos Naturales
- Recursos y energía_ISA
- Red spruce
- Reduce, Reuse, & Recycle w Reed
- Reducing Meat Consumption
- Reef Beef
- Reforma Energética Y Gas Shale
- Regenerative Agriculture Podcast
- Regiones naturales y componentes naturales de la tierra
- Região Norte
- Regret Labs Podcast: Science | Comedy | Humility
- Regulatory Science, Drug Development and Public Health
- Relação Redes Geográficas Com O Coronavirus
- Relieve Continental
- Relieve Y Vegetacion En Venezuela
- RENEWables A Sustainability Podcast
- Rentetan Kata
- Research & Mysteries
- Resilient New Mexico Podcast
- Resturant Industry needs a change
- Retadonas
- Retata
- Rethink Talks
- Revista Informe Ambiental
- Revisão De Geografia - Professora Patrícia Leal
- Revolta Da Vacina
- Reynolds Paranormal
- Ricardo Rosal León
- Rice Commodity Chain
- Ridge to Reef
- Ridwanhak A Story
- RINDU ALAM
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- Rising sea levels
- Ritmo Astral
- River Runs Backwards
- Roadside Terroir
- Roberto Ramirez
- Rock Logic with Sean Kenny
- Rock the Mic
- RockEdRadio - a voice for geoscience education
- Rocking the Rocks with Kristina - Geologický podcast
- ROCKS AND MINERALS : The Treasures Inside Our Earth
- RODEZA EGIPTO CALIGUIRAN
- Rolando um Clima - Podcast
- Rolling Ocean
- Rotation Velocity
- Rotação de culturas.
- Rumah Kita
- Run With The Sun Podcast
- Rushioと学ぶ地球科学!
- Ruth Manrique Azaldegui
- Ryzzun Energy
- Rádio Verde
- Révolution fraternelle
- Rôle des Forêts