Stefano Capello and Sara Groppelli on Limenet’s approach to limestone-based OAE
From Plan Sea: Ocean Interventions to Address Climate Change by Wil Burns and Anna Madlener
January 22, 2026 · 1h 3m · Season 3 · Episode 5
About this episode
The episode features a discussion with Stefano Capello and Sara Groppelli about Limenet's limestone-based ocean alkalinity enhancement approach and its impact on phytoplankton communities.
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...
People in this episode
Hosts: Anna Madlener, Wil Burns
Guests: Stefano Capello, Sara Groppelli
Topics covered
- ocean alkalinity enhancement
- climate change
- phytoplankton
- limestone
- sustainability
Keywords
- ocean alkalinity
- limestone
- climate interventions
- phytoplankton communities
- sustainability
Mentioned in this episode
Organizations: Limenet, University of Milano-Bicocca
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