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Artwork for Plan Sea: Ocean Interventions to Address Climate Change

Plan Sea: Ocean Interventions to Address Climate Change

Wil Burns and Anna Madlener
Marine Carbon Dioxide Removal
Ocean Alkalinity Enhancement
Carbon Dioxide Removal
Climate Change
Carbon Removal
Enhanced Rock Weathering
Data Standardization
Ocean Iron Fertilization
Carbon Credits
Cost-Efficiency Analysis
Southern Ocean
Marine Carbon Removal
Legal and Regulatory Framework
Monitoring, Reporting, and Verification
Environmental Monitoring
Carbon To Sea Initiative
Legal Frameworks
Fisheries Impact
Nutrient Robbing
Climate Engineering

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

PublishesTwice monthlyEpisodes44Founded3 years ago
Number of ListenersCategories
ScienceNature

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Artwork for Plan Sea: Ocean Interventions to Address Climate Change

Latest Episodes

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

YouTube

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

YouTube

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

YouTube

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... more

YouTube

Key Facts

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Podcast Host
Number of Listeners
Find out how many people listen to this podcast per episode and each month.

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Recent Guests

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
Dr. Kristi Weighman
Ecotoxicologist at Hourglass Climate, focusing on mechanistic modeling and how substances affect organisms and ecosystems
Hourglass Climate
Episode: Hourglass Climate's Dr. Grace Andrews and Kristi Weighman on the launch of the Framework for Ecotoxicological Modeling of mCDR
Stefano Capello
CEO and founder of Limenet, with a background in mechanical engineering.
Limenet
Episode: Stefano Capello and Sara Groppelli on Limenet’s approach to limestone-based OAE

Hosts

Anna Madlener
Senior Manager for MRV at the Carbon to Sea Initiative, and co-host of an environmental podcast focusing on ocean-based climate solutions.
Wil Burns
Co-Executive Director of the Institute for Responsible Carbon Removal and co-host focusing on marine carbon dioxide removal projects.

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

Listeners Say

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

Positive feedback highlights thoughtful discussions around ocean-based climate strategies and the knowledgeable guests featured.
Some listeners critique the perceived bias in the content, mentioning it seems to have a pro-geoengineering stance rather than fostering objective discussions.

Chart Rankings

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

Apple Podcasts
#191
United States/Science/Nature
Apple Podcasts
#76
United Kingdom/Science/Nature
Apple Podcasts
#118
Canada/Science/Nature
Apple Podcasts
#219
Germany/Science/Nature
Apple Podcasts
#137
Taiwan/Science/Nature
Apple Podcasts
#161
New Zealand/Science/Nature

Talking Points

Recent interactions between the hosts and their guests.

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.
Hourglass Climate's Dr. Grace Andrews and Kristi Weighman on the launch of the Framework for Ecotoxicological Modeling of mCDR
Q: What is FEMM and what was your motivation in developing this?
FEMM is a framework for evaluating environmental risk from marine carbon dioxide removal projects. Its development was motivated by the need for better integration of ecotoxicological data and understanding of ecological safety in mCDR projects.
Stefano Capello and Sara Groppelli on Limenet’s approach to limestone-based OAE
Q: What additional research do you think is needed to reach large scale utilization at this point?
We need scientific research on the non-equilibrated methods and environmental impact assessments specific to different regions.
Stefano Capello and Sara Groppelli on Limenet’s approach to limestone-based OAE
Q: How are you currently using the terms pre-dissolved, pre-equilibrated, or non-equilibrated?
Our process aims to decrease scientific uncertainty when injecting alkalinity into the ocean by ensuring it is pre-dissolved and not in solid forms.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

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

This podcast focuses on innovative ocean-based strategies for tackling climate change, particularly through carbon dioxide removal (CDR) methods. It features in-depth discussions with scientists, researchers, and practitioners who share insights and expertise regarding the environmental implications, technological advancements, and the governance surrounding these approaches. Episodes often highlight the ecological impacts of different solutions, regulatory frameworks, and the importance of community engagement in implementing these initiatives. The discussions emphasize critical aspects such as ethical considerations and collaboration across various stakeholders to foster more sustainable practices in ocean carbon management.

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1. Outrage + Optimism: The Climate Podcast
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this podcast launched 3 years ago and published 44 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. Kohen Bauer
2. Abigale Wyatt
3. Mariam Maku Swaleh
4. Frank Rattey
5. Thorben Amann
6. Professor Dr. Alexander Proelss
7. Dr. Grace Andrews
8. Dr. Kristi Weighman

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