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 local community engagement, and the project’s early findings. 

A few weeks ago, WHOI completed its highly controlled research trial in the Gul...

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 Sustainable Ocean Economy, the report outlines how to responsibly evaluate and potentially scale ocean-based carbon dioxide removal (oCDR) — also referr...

In this edition of Plan Sea, hosts Anna Madlener and Wil Burns sit down with Kyla Westphal and 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 journey engaging the local community on this proposed research, securing a permit from the U.S. Environmental Protection Agency (EPA), and establishing Monitoring, Reporti...

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 Sea hosted its third Annual Convening in Washington, D.C., bringing together scient...

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: 

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: 

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 Professor of Law at Dalhousie University’s Schulich School of Law, serving as the Yogis and Keddy Chair in...

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 Submarine’s work pioneering a new initiative to standardize emerging data from ocean alkalinity enhancement (OAE) field trials. In collaboration with Carbon to Sea an...

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 & the American Un...

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 sites studying OAE and are part of Carbon to Sea’s Field Research Steering Committee. 

Palter and Atamanchuk discuss...

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.

Acronyms used throughout the episode:

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:

Plan Sea is a...

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:

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.

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.

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.

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.

Carbon to Sea & the American University Institute for Responsible Carbon Removal announce a new collaboration for the second season of “Plan Sea” — a semi-weekly podcast exploring ocean-based climate solutions. Plan Sea will release episodes on a semi-weekly basis throughout Fall 2024, and is hosted by Wil Burns and Anna Madlener.

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.

Our guests today, Lennart Bach, at the Institute for Marine and Antarctic Studies, University of Tasmania, and Veronica Tamsitt, Head of Oceanography at the mCDR MRV company, Submarine, are two of the authors of a very interesting research article recently published in the journal Global Biogeochemical Cycles, titled “Identifying the Most (Cost-)Efficient Regions for CO2 Removal With Iron Fertilization in the Southern Ocean.” 

Ocean Iron Fertilization (OIF) is really the “OG” of marine-based CDR approaches, with the Ocean Iron Hypothesis being advanced by oceanographer John Martin in the 1980s, and 13 field experiments ensuing over the course of two de...

Our guest today is Freya Chay, Carbon Removal Program Lead at CarbonPlan, a non-profit organization in the US working on data and science for climate action by improving the transparency and scientific integrity of climate solutions with open data and tools. 

Carbon Plan and Freya have produced a number of stellar publications and tools, widely regarded in the field and insightfully crafted. Notably, the CDR primer is a bibliography of crucial concepts to understand if one wants to enter the world of CDR. Similarly, the CDR Verification Framework is an insightful and informative tool to explore detailed l...

Welcome back to the Plan Sea Podcast as we kick off our final stretch of season 1. 
Today's episode focuses on the findings and observations in a recently published paper in the Journal of Environmental Science and Policy entitled 

Towards just, responsible, and socially viable carbon removal: lessons from offshore DACCS research for early-stage carbon removal projects

We welcome the paper's coauthors Sara Nawaz, Director of Research at the Institute of Carbon Removal, Law and Policy, and Terre Satterfield, Professor of Culture, Risk and Environment at the Institute for Resources, Environment and Sustainability, University of...

Dr. Matt Eisaman and Frances Simpson-Allen join Plan Sea to discuss Ebb Carbon's marine carbon dioxide removal approach and their latest developments. Matt is a cofounder and Chief Scientist as well as Associate Professor at Yale University in the Department of Earth & Planetary Sciences and the Yale Center for Natural Carbon Capture (YCNCC). Frances is their Director for Policy and Market Development. 

We discuss the necessity of field trials, challenges on their path to scaleup, as well as very importantly the relevance and importance of social engagement strategies. Particularly, we converse about Ebb's most recent public-private partnerships a...

Today’s guest is David Koweek, who holds a PhD from Stanford University in Earth System Science and is currently the Chief Scientist of Ocean Visions, a non-profit organization comprised of a network of leading universities and oceanographic research institutions and partners. Ocean Visions works to engage and focus resources from across this network for concerted action, catalyzing collaboration for the co-design, development, testing, and evaluation of solutions to the interlocking ocean-climate crisis.

David tells us about Ocean Vision's general work and thematic pillars. In particular, we discuss the importance of field trials in order for scaleup of...

Dr. Ken Buesseler, senior scientist at the Woods Hole Oceanographic Institution, joins us to discuss new perspectives and opportunities of ocean iron fertilization (OIF) as a carbon removal solution.

Ken explores with us how the journey of OIF has evolved as one of the first researched carbon removal solutions from about a decade ago to today. We discuss what OIF is, what the new effort  ExOIS, Exploring Ocean Iron Solutions, entails and why it is important for the development of OIF. We discuss the history of OIF as well as how new technology development could help answer s...

Today's episode features three representatives of the SEAO2-CDR project, a European effort to determine strategies for the evaluation and assessment of ocean based carbon dioxide removal. The project's aims range from a strongly interdisciplinary background and focus not only on scientific, but also economic, legal, political, social and ethical  aspects.

We are joined by 

This episode's guests are Jean-Pierre Gattuso, CNRS research professor at Sorbonne University and Institute on Sustainable Development and International Relations, France, and Chair for Ocean Acidification and other ocean changes – Impacts and Solutions at Prince Albert II of Monaco Foundation; and Andreas Oschlies, professor and head of the biogeochemical modeling research unit at GEOMAR Helmholtz Centre for Ocean Research in Kiel, Germany.

Together they have led a crossdisciplinary, international research effort to produce a Best Practice Guide for Ocean Alkalinity Enhancement. The currently published pre-print of the guide consists of 13 chapters, written by 50+ scientific co-authors and covering al...

Rose Sharifian, CTO of the Dutch startup SeaO2, joins Plan Sea to talk about their electrochemical ocean carbon capture approach. 

Rose, Anna and Wil discuss SeaO2's technical roadmap, electrochemical membrane technology as well as challenges and opportunities they are facing in the European CDR market. Rose also shares how SeaO2 fits into the global picture of marine CDR startups and why she believes they are amongst the furthest in their development. 

Learn more about SeaO2 on https://www.seao2.nl/.

Plan Sea is a semi-weekly podcast exploring ocean-based climate solutions, br...

Mike Kelland, CEO and co-founder of Planetary Technologies, an ocean alkalinity enhancement (OAE) startup from Canada, joins Plan Sea on this new episode.

Mike, Anna and Wil discuss the basics, science and challenges surrounding ocean alkalinity enhancement — a method whereby the capacity of ocean water to draw down additional CO2 from the atmosphere is increased by increasing the alkalinity of this water.
The better part of this episode focuses on the most recent challenges of Planetary around their community engagement and their first planned pilot site in Cornwall, UK. Mike shares learnings, insights and future outlook on...

Our guest, Lisa Levin, is a distinguished professor at the Scripps Institution of Oceanography and the lead author of a recent article in the journal Science called "Deep Sea Impacts of Climate Interventions." She explains that most ocean-based carbon removal technologies involve dumping materials and carbon into the ocean floor, which could affect the many different ecosystems of the deep sea. The deep sea is vast and full of biodiversity, which plays a critical role in regulating the planet's climate and maintaining its health. Lisa identifies the risks associated with ocean-based climate interventions, such as changing the light regime...

Matthew Long joins Wil Burns and Anna Madlener to discuss his role at the National Center for Atmospheric Research: Climate and Global Dynamics and the Cworthy project, a non-profit research organization to develop the scientific and technical tools associated with quantifying ocean carbon dioxide removal and leveraging those tools to bolster the monitoring, reporting, and verification of carbon dioxide removal.

Matthew discusses the research that he conducts and the successes and challenges that the research has identified. 

Plan Sea is a semi-weekly podcast exploring ocean-based climate solutions, brought to you by the Carbon to Sea I...

Philip Boyd joins Wil Burns and Anna Madlener in this episode of the podcast to discuss  a recent publication, "Operational Monitoring of Open-Ocean Carbon Dioxide Removal Deployments: Detection, Attribution, and Determination of Side Effects". Phil discusses the technological and scientific focus areas necessary to enable operational monitoring as highlighted in the paper by him and his co-authors. This includes tools to be used, field implementation, reporting and verification and  three guiding principles they have identified to enable operational monitoring.

Philip Boyd is a professor of Marine Biogeochemistry at the Institute of Marine and Antarctic Studies at the Un...

Dr. Jessica Cross joins Anna Madlener and Wil Burns on the podcast to discuss the driving and scientifically informed academic, entrepreneurial, and legislative pathways for ocean-based carbon removal approaches.

Jessica is a research oceanographer at the National Oceanographic and Atmospheric Association (NOAA) where she leads the Carbon Dioxide Removal Task Force and manages the Carbon System Observing Research and Development for the Alaska and Pacific Arctic regions. 

Jessica, Anna, and Wil have a great discussion on the successes and challenges they are currently facing in the carbon removal field and t...