Plan Sea: Ocean Interventions to Address Climate Change
by Wil Burns and Anna Madlener
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- Per-Episode Audience
Est. listeners per new episode within ~30 days
1,001 - 10,000 - Monthly Reach
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5,001 - 25,000 - Active Followers
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501 - 5,000
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On the show
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Recent episodes
Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan
Apr 2, 2026
56m 10s
Scientific Communication with COMPASS mCDR Communication Leaders at OSM 2026
Mar 19, 2026
1h 01m 24s
Planeteers’ Frank Rattey and Dr. Thorben Amann on closed-system, alkalinity-based carbon removal
Mar 5, 2026
1h 04m 45s
Professor Dr. Alexander Proelss on the current state of international legal frameworks regulating oCDR
Feb 19, 2026
1h 05m 38s
Hourglass Climate's Dr. Grace Andrews and Kristi Weighman on the launch of the Framework for Ecotoxicological Modeling of mCDR
Feb 5, 2026
1h 01m 50s
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 4/2/26 | Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan✨ | coastal resiliencecarbon dioxide removal+3 | Dr. Gabby KitchAnu Khan | Carbon Removal Standards Initiative | — | coastal resiliencecarbon removal+3 | — | 56m 10s | |
| 3/19/26 | Scientific Communication with COMPASS mCDR Communication Leaders at OSM 2026 | In this special video edition of Plan Sea, host Anna Madlener and Carbon to Sea’s Senior Manager for Communications, Danny Gawlowski, record from the Ocean Sciences Meeting (OSM) in Glasgow, Scotland. They sit down with members of the COMPASS mCDR Communication Leaders program — Dr. Abigale Wyatt, an ocean modeler from [C]Worthy, Dr. Mariam Swaleh, who leads the Ocean Climate Innovation Hub in Kenya, and Dr. Kohen Bauer, science director at Ocean Networks Canada — to explore what makes ... | 1h 01m 24s | ||||||
| 3/5/26 | Planeteers’ Frank Rattey and Dr. Thorben Amann on closed-system, alkalinity-based carbon removal | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns are joined by Frank Rattey and Dr. Thorben Amann of Planeteers — a Hamburg-based carbon removal startup researching alkalinity-based carbon dioxide removal (CDR) approaches — to discuss the science behind their closed-system pathway, their first field tests, and the national regulations guiding ocean-climate research. Dr. Thorben Amann is the Research and Development Lead at Planeteers and a geochemical CDR specialist. In this epi... | 1h 04m 45s | ||||||
| 2/19/26 | Professor Dr. Alexander Proelss on the current state of international legal frameworks regulating oCDR | In this episode of Plan Sea, hosts Anna Madlener and Wil Burns sit down with Professor Dr. Alexander Proelss, Chair in the International Law of the Sea and International Environmental Law, Public International Law, and Public Law at the University of Hamburg, to discuss the current state and recent developments of international legal frameworks regulating ocean-based carbon dioxide removal (oCDR). Alexander discusses the need for international law to ensure responsible regulation of oCDR, and... | 1h 05m 38s | ||||||
| 2/5/26 | Hourglass Climate's Dr. Grace Andrews and Kristi Weighman on the launch of the Framework for Ecotoxicological Modeling of mCDR | In this episode, hosts Anna Madlener and Wil Burns are joined by Dr. Grace Andrews and Kristi Weighman of Hourglass Climate — a leading nonprofit researching ocean-based carbon dioxide removal (oCDR, also known as mCDR ) methods like ocean alkalinity enhancement (OAE) — to discuss the launch of the Framework for Ecotoxicological Modeling of mCDR (FEMM). This project explores how ecotoxicological modeling and existing statistical approaches can be applied to OAE and oCDR projects, improving th... | 1h 01m 50s | ||||||
| 1/22/26 | Stefano Capello and Sara Groppelli on Limenet’s approach to limestone-based OAE | In this episode of Plan Sea, hosts Anna Madlener and Wil Burns sit down with Stefano Capello, CEO and founder of Limenet — an Italian startup focused on limestone-based ocean alkalinity enhancement (OAE) and net-zero lime production — and Sara Groppelli, a PhD researcher at the University of Milano-Bicocca studying the impact of Limenet’s approach on phytoplankton communities. Stefano discusses Limenet's journey from theoretical experiments in his grandmother’s garage to a pilot plant in Ital... | 1h 02m 32s | ||||||
| 12/18/25 | Researchers Dr. Leila Kittu, Dr.Giulia Faucher, and Dr. Charly Moras discuss Ocean Alk-Align’s global research of OAE safety | In this episode of Plan Sea, hosts Anna Madlener and Wil Burns sit down with researchers Dr. Leila Kittu, Dr. Giulia Faucher, and Dr. Charly Moras to discuss the latest updates from the Ocean Alk-Align consortium’s exploration of ocean alkalinity enhancement’s (OAE) environmental safety and efficiency. Representing expertise from the GEOMAR Helmholtz Centre for Ocean Research and the University of Hamburg, Leila, Giulia, and Charly join Anna and Wil to share valuable insights on what’s needed... | 1h 00m 30s | ||||||
| 12/4/25 | Dr. Phil Renforth and Dr. Mijndert Van der Spek on a harmonized framework for techno-economic analyses and lifecycle assessments of OAE | In this episode of Plan Sea, hosts Anna Madlener and Wil Burns sit down with Dr. Phil Renforth and Dr. Mijndert Van der Spek of Heriot-Watt University to unpack their newly published, harmonized framework for evaluating the viability of ocean alkalinity enhancement (OAE) pathways. Moving beyond lab-scale assumptions, their approach integrates techno-economic analysis (TEA) and lifecycle assessment (LCA) to allow the exploration of 54 known OAE variations and how they perform under futur... | 49m 58s | ||||||
| 11/20/25 | Dr. Lydia Kapsenberg and Dr. Tyler Cyronak discuss research advancements on OAE’s environmental safety | In this episode of Plan Sea, hosts Anna Madlener and Wil Burns dive deep into the new Biogeosciences special issue focused on the environmental safety of ocean alkalinity enhancement (OAE). This episode’s guests are Dr.Lydia Kapsenberg and Dr. Tyler Cyronak who helped edit the special issue. Compiling more than 20 studies, the special issue serves as a “one-stop shop” of the latest peer-reviewed science on the environmental safety of OAE — ranging from responses of micro algae and corals... | 42m 52s | ||||||
| 10/23/25 | WHOI’s Dr. Adam Subhas and Jennie Rheuban on the LOC-NESS OAE Field Trial | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns kick off season three of the podcast with Woods Hole Oceanographic Institution (WHOI) researchers Dr. Adam Subhas and Jennie Rheuban to discuss the LOC-NESS project — a small-scale, open-ocean research trial on ocean alkalinity enhancement (OAE). The project’s co-principal investigators join Anna and Wil to recount the process of receiving a first-of-its-kind permit from the U.S. Environmental Protection Agency (EPA), the role of ... | 59m 29s | ||||||
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| 7/17/25 | A Deep Dive on Principles for Responsible Ocean Carbon Removal Development & Governance | In this edition of Plan Sea, co-host Anna Madlener sits down with co-host (and one of this week’s guests) Wil Burns, Dr. Terre Satterfield from the University of British Columbia, and Dr. Chris Pearce from the UK’s National Oceanography Center. Burns, Satterfield, and Pearce are some of the lead authors on a new report launched at the 2025 UN Ocean Conference, “Principles for Responsible and Effective Marine CDR Development and Governance.” Commissioned by the High-Level Panel for a Sus... | 51m 01s | ||||||
| 6/26/25 | Community Engagement and Trial Monitoring with Ebb Carbon’s Kyla Westphal and Dr. Mallory Ringham | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns sit down with Kyla Westphal and Dr. Mallory Ringham from Ebb Carbon to discuss Project Macoma — the company’s pilot ocean alkalinity enhancement (OAE) study being conducted in Port Angeles, Washington this summer. A first-of-its-kind endeavor, Project Macoma aims to remove up to 1,000 tonnes of CO2 from the atmosphere using Ebb Carbon’s electrochemical OAE technology. Kyla and Mallory join to share more about their jour... | 48m 05s | ||||||
| 6/5/25 | Special Episode by Plan Sea and The Carbon Curve: Insights from the Carbon to Sea 2025 Annual Convening with Dr. Lennart Bach | In this edition of Plan Sea, host Anna Madlener is joined by Na’im Merchant, host of The Carbon Curve podcast and Executive Director of Carbon Removal Canada, for a special co-hosted episode of the two podcasts. Recorded live at the Carbon to Sea 2025 Annual Convening, Anna and Na’im speak with Lennart Bach, Associate Professor and ocean alkalinity enhancement (OAE) scientist at the University of Tasmania, to share insights and key takeaways from this year’s convening. Last month, Carbon to... | 34m 08s | ||||||
| 4/17/25 | Insights from the 2025 Ocean Visions Summit, Part Two | This episode of Plan Sea was recorded live at the Ocean Visions Biennial Summit 2025, and features conversations with experts from Ocean Visions, UArctic, and WHOI to discuss their work in the ocean-climate nexus. Host Anna Madlener is joined again by special co-host, Danny Gawlowski, Carbon to Sea’s Senior Manager of Communications and Policy. Listen to Part One of Plan Sea’s coverage of the Ocean Vision Biennial here. Guests on this episode include: Nikhil Neelakantan, Senior Program ... | 53m 34s | ||||||
| 4/10/25 | Insights from the 2025 Ocean Visions Summit, Part One | This episode of Plan Sea was recorded live at the Ocean Visions Biennial Summit 2025, and features conversation with Ocean Visions CEO Brad Ack and other attendees to discuss their work in ocean-based carbon dioxide removal (oCDR). Host Anna Madlener is joined by a special co-host, Danny Gawlowski, Carbon to Sea’s Senior Manager of Communications and Policy. Guests on this episode include: Brad Ack, CEO of Ocean VisionsMarc von Keitz, Director at The Grantham Foundation for the Protecti... | 1h 06m 53s | ||||||
| 3/13/25 | How current policies affect ocean-based carbon removal research and innovation in Canada | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns are joined by Drs. Sara Seck and Neil Craik to discuss the current governance and public funding landscape for ocean-based carbon dioxide removal (oCDR) research and innovation in Canada. They focus particularly on jurisdictional challenges in Nova Scotia, related to an increase in oCDR R&D in the province over recent years, and discuss broadly how to strengthen future policymaker and public engagement. Sara Seck is a Professo... | 53m 36s | ||||||
| 2/27/25 | Submarine Scientific and Cascade Climate on Enhancing Carbon Removal Research Efficiency through Data Standardization and Sharing | In this episode of Plan Sea, hosts Anna Madlener and Wil Burns are joined by several guests to discuss new initiatives to improve data management and transparency in the carbon dioxide removal (CDR) industry. Jacki Long is an ocean scientist and co-founder of Submarine Scientific, a scientific consulting company focused on ocean modeling, expert verification support, and system wide strategy development for ocean-based carbon dioxide removal (oCDR). Jacki joins the Plan Sea hosts to discuss S... | 50m 25s | ||||||
| 1/10/25 | CALLOUT: We want to hear from you! | Hey listeners, we want to hear from you! What 2024 milestone in the world of carbon removal should we be celebrating? And what do you hope to see in the marine CDR field in 2025? Leave us a quick voice message at www.speakpipe.com/planseapodcast It only takes a few seconds, and you could be featured in our next episode. Thanks, and happy new year! Plan Sea is a semi-weekly podcast exploring ocean-based climate solutions, brought to you by the Carbon to Sea Initiative &a... | 0m 53s | ||||||
| 12/19/24 | Dr. Jaime Palter and Dr. Dariia Atamanchuk Share Insights from Cutting-Edge OAE Field Research | This new episode features two OAE researchers and their insights from conducting field research as well as a special request to you, our listeners! In this edition of Plan Sea, hosts Anna Madlener and Wil Burns are joined by two leading ocean alkalinity enhancement (OAE) researchers: Dr. Jaimie Palter from the University of Rhode Island’s School of Oceanography and Dr. Dariia Atamanchuk from Dalhousie University’s Department of Oceanography. Palter and Atamanchuk both lead field research si... | 1h 00m 58s | ||||||
| 12/5/24 | Captura’s CEO Steve Oldham discusses Direct Ocean Capture technology | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns are joined by Captura CEO Steve Oldham to discuss Direct Ocean Capture technology. Captura is a Pasadena, CA-based company that is exploring the use of renewable energy to remove carbon from the ocean as a low-cost, large-scale climate solution. Learn more about Captura’s DOC approach and propriety technology on their website here. Listen to our previous episode with Banyu Carbon’s Co-Founder & CEO Alex Gagnonon here. ... | 58m 02s | ||||||
| 11/14/24 | Planetary Technologies’ Mike Kelland and Dr. Will Burt update on the company’s growth | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns are joined by returning guest Mike Kelland, CEO and co-founder of Planetary Technologies, as well as Dr. Will Burt, Planetary’s Chief Ocean Scientist. Planetary is an ocean alkalinity enhancement (OAE) startup based in Halifax, Canada. Link to Planetary's webinar on recent trial results here. Listen to our first episode with Mike Kelland here. ACRONYMS / CONCEPTS: NOAA (19:39): National Oceanographic and Atmospheric Associati... | 50m 31s | ||||||
| 10/31/24 | Dr. Grace Andrews on Hourglass Climate’s Approach to Monitoring Ocean Alkalinity Enhancement | In today's episode, hosts Anna Madlener and Wil Burns are joined by Grace Andrews from Hourglass Climate. They discuss Hourglass' work on environmental monitoring and carbon removal quantification of Ocean Alkalinity Enhancement (OAE) trials as a research non-profit. To view the Ocean Visions webinar referenced on the podcast, click here: LINK. Acronyms: MRV (1:42) mCDR (3:28)USGS (18:51)EPA (19:32)NOAA (20:51)LCA (23:09)pCO2 (25:02)Plan Sea is a semi-weekly podcast exploring ocean... | 56m 05s | ||||||
| 10/18/24 | Alex Gagnon on Banyu Carbon’s novel Direct Ocean Removal approach | In this edition of Plan Sea, hosts Anna Madlener and Wil Burns discuss a novel sunlight-driven approach to marine carbon dioxide removal (mCDR) with Alex Gagnon, co-founder and CEO of Banyu Carbon, a direct ocean removal startup based in Seattle, WA. Plan Sea is a semi-weekly podcast exploring ocean-based climate solutions, brought to you by the Carbon to Sea Initiative & the American University Institute for Responsible Carbon Removal. | 1h 13m 50s | ||||||
| 10/3/24 | The U.S. Department of Energy’s Rory Jacobson on the evolving landscape of mCDR | Hosts Anna Madlener and Wil Burns discuss the evolving landscape of marine carbon dioxide removal (mCDR) with Rory Jacobson, Acting Division Director for Carbon Dioxide Removal at the U.S. Department of Energy (DOE). Plan Sea is a semi-weekly podcast exploring ocean-based climate solutions, brought to you by the Carbon to Sea Initiative & the American University Institute for Responsible Carbon Removal. | 49m 24s | ||||||
| 9/19/24 | Isometric’s Dr.'s Sophie Gill, Jing He, and Jennifer Yin on Marine Carbon Removal Certification | Plan Sea dives into the world of carbon removal certification, joined by experts Sophie Gill, Jing He, and Jennifer Yin from Isometric — a carbon credit certification platform and registry focused on high-quality carbon removal. Plan Sea is a semi-weekly podcast exploring ocean-based climate solutions, brought to you by the Carbon to Sea Initiative & the American University Institute for Responsible Carbon Removal. | 1h 14m 32s | ||||||
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Chart Positions
4 placements across 4 markets.
Chart Positions
4 placements across 4 markets.