Plan Sea: Ocean Interventions to Address Climate Change

Wil Burns and Anna Madlener

Ocean Alkalinity Enhancement

Marine Carbon Dioxide Removal

Carbon Dioxide Removal

Climate Change

Carbon Removal

Enhanced Rock Weathering

Data Standardization

Community Engagement

Carbon Credits

Ocean Iron Fertilization

Direct Ocean Capture

Marine Carbon Removal

Carbon To Sea Initiative

Southern Ocean

Cost-Efficiency Analysis

Environmental Monitoring

Legal and Regulatory Framework

Monitoring, Reporting, and Verification

Marine Ecosystems

Direct Ocean Removal

Plan Sea is hosted by Wil Burns, Co-Director of the Institute for Responsible Carbon Removal at American University, and Anna Madlener, Senior Manager for monitoring, reporting, and verification (MRV) at the Carbon to Sea Initiative.

As co-hosts, Wil and Anna invite guests to the podcast each episode to discuss potential ocean-based climate solutions, particularly approaches that lead to carbon ... more

28 ratings

Publishes	Twice monthly	Episodes	45	Founded	3 years ago
Number of Listeners		Categories	ScienceNature

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Latest Episodes

Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan

In this episode of Plan Sea, hosts Anna Madlener and Dr. Wil Burns sit down with Dr. Gabby Kitch and Anu Khan from the Carbon Removal Standards Initiative (CRSI) — a nonprofit organization using science and policy to unlock carbon dioxide removal (C... more

2 Apr 2026 • 56 min

YouTube

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 Co... more

19 Mar 2026 • 1 hr 1 min

YouTube

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 t... more

5 Mar 2026 • 1 hr 4 min

YouTube

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... more

19 Feb 2026 • 1 hr 5 min

YouTube

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Recent Guests

Gabby Kitch

Navigation Fund Fellow at Carbon Removal Standards Initiative; Marine CDR lead at Yale Center for Natural Carbon Capture; former Marine CDR lead at NOAA

Carbon Removal Standards Initiative (CERCIE) and Yale Center for Natural Carbon Capture; NOAA (former)

Episode: Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan

Anu Khan

Founder and Executive Director of Carbon Removal Standards Initiative (CERCIE)

Carbon Removal Standards Initiative (CERCIE)

Episode: Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan

Kohen Bauer

Science director at Ocean Networks Canada

Ocean Networks Canada

Episode: Scientific Communication with COMPASS mCDR Communication Leaders at OSM 2026

Abigale Wyatt

Ocean modeler at Seaworthy

Seaworthy

Episode: Scientific Communication with COMPASS mCDR Communication Leaders at OSM 2026

Mariam Maku Swaleh

Marine chemist, head of Ocean Climate Innovation Hub, Kenya

Technical University of Mombasa / Ocean Climate Innovation Hub

Episode: Scientific Communication with COMPASS mCDR Communication Leaders at OSM 2026

Frank Rattey

Co-founder and managing director of Planeteers

Planeteers

Episode: Planeteers’ Frank Rattey and Dr. Thorben Amann on closed-system, alkalinity-based carbon removal

Thorben Amann

R&D lead at Planeteers

Planeteers

Episode: Planeteers’ Frank Rattey and Dr. Thorben Amann on closed-system, alkalinity-based carbon removal

Professor Dr. Alexander Proelss

Chair in International Law at the University of Hamburg with research focusing on international and environmental law.

University of Hamburg

Episode: Professor Dr. Alexander Proelss on the current state of international legal frameworks regulating oCDR

Dr. Grace Andrews

Founder and executive director of Hourglass Climate, a nonprofit focused on marine carbon dioxide removal strategies

Hourglass Climate

Episode: Hourglass Climate's Dr. Grace Andrews and Kristi Weighman on the launch of the Framework for Ecotoxicological Modeling of mCDR

Hosts

Wil Burns

Co-host; Co-Executive Director of the Institute for Responsible Carbon Removal; affiliated with American University.

Anna Madlener

Co-host; MRV Lead/Manager for the Carbon to Sea Initiative; senior MRV professional.

Reviews

4.9 out of 5 stars from 28 ratings

Biased and disingenuous
A pro-geoengineering podcast dressed up as an objective and investigative show. The only decent guest was Lisa Levin who was largely ignored or misunderstood.
Apple Podcasts
1
JamesCT39
Switzerland2 years ago

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Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

One reviewer notes strong guest quality but felt some topics were not fully explored.

Some listeners see a bias toward geoengineering or ocean-based removal as the primary solution, rather than a balanced view of risks and alternatives.

Overall, the show is likely valued for bringing practitioners and researchers to the table, though perceptions of balance may vary.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts	#97	Germany/Science/Nature
Apple Podcasts	#133	Italy/Science/Nature
Apple Podcasts	#227	France/Science/Nature
Apple Podcasts	#120	India/Science/Nature
Apple Podcasts	#130	Belgium/Science/Nature
Apple Podcasts	#189	Taiwan/Science/Nature

Talking Points

Recent interactions between the hosts and their guests.

Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan

Q: What are the recommended next steps for states and funders following the roadmap?

Focus on public-benefit outcomes, early community engagement, and creating policy mechanisms that support both mitigation and adaptation while enabling scalable MRV and monitoring for coastal resilience projects.

Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan

Q: Are carbon credits required for these integrations, and what is their role in near-term pilots?

Credits are not required, but they can finance pilot projects and help learn about MRV and processing; near-term pilots may rely on voluntary buyers and non-credit funding to test approaches.

Coastal Resilience and oCDR with Carbon Removal Standards Initiative’s Dr. Gabby Kitch and Anu Khan

Q: Why is coastal resilience a key topic for integrating abiotic MCDR and how would that work in practice?

Coastal resilience provides existing, funded infrastructure and monitoring systems that can be augmented with abiotic CDR components, allowing carbon removal to be realized as a co-benefit while leveraging established policy environments and community priorities.

Planeteers’ Frank Rattey and Dr. Thorben Amann on closed-system, alkalinity-based carbon removal

Q: What are the advantages of a closed system approach compared to open-system methods?

The closed system provides measurable, well-controlled inputs and outputs, enabling easier monitoring and initial reporting, and it can be attached to existing point-source infrastructure, reducing integration challenges.

Hourglass Climate's Dr. Grace Andrews and Kristi Weighman on the launch of the Framework for Ecotoxicological Modeling of mCDR

Q: What technologies is FEMM applicable to?

FEMM is immediately ready for certain applications in the context of ocean alkalinity enhancement and aims to expand to other mCDR technologies, including direct ocean capture.

Audience Metrics

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Frequently Asked Questions About This Podcast

What is This Podcast about and what kind of topics does it cover?

The show frequently centers on ocean-based climate solutions with a focus on carbon removal, governance, and community impact. Episodes explore practical pathways for integrating coastal resilience, ocean-based carbon removal, and related MRV practices, often weighing regulatory, ethical, and social considerations alongside technical feasibility. A notable strength is bringing together researchers, policy experts, and industry practitioners to discuss real-world pilots, governance gaps, and the interplay between science and policy, which can help listeners assess opportunities for collaboration or sponsorship in the blue carbon and ocean-tech spaces.

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1. The Climate Question
2. The Daily
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this podcast launched 3 years ago and published 45 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on this podcast?

Recent guests on this podcast include:

1. Gabby Kitch
2. Anu Khan
3. Kohen Bauer
4. Abigale Wyatt
5. Mariam Maku Swaleh
6. Frank Rattey
7. Thorben Amann
8. Professor Dr. Alexander Proelss

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