[C]Worthy scientists partnered with American University to host a workshop series in the Salish Sea Basin, bringing coastal community members into conversation about marine carbon dioxide removal using regionally-tailored ocean models and deployment simulations.

A look back at the major milestones that defined mCDR in 2025—from first verified ocean-based carbon dioxide removal credits to new permits, protocols, and growing policy momentum.

To build trust in mCDR, the calculations that underpin carbon crediting need to be transparent and reproducible. This piece introduces the C-Star Blueprint: a new tool that makes ocean models auditable.

[C]Worthy and Third Derivative have released a practical roadmap for developing credible monitoring, reporting, and verification (MRV) systems in marine carbon removal. It outlines key stages, milestones, and considerations to help accelerate learning, reduce duplication, and guide informed investment.

[C]Worthy is building the scientific and technical foundation for credible marine carbon dioxide removal (mCDR), starting with C-Star, a software platform that uses regional ocean models to quantify how much atmospheric CO₂ is removed during an mCDR deployment. This post explores a model simulation of a hypothetical Ocean Alkalinity Enhancement (OAE) deployment, including the spread of added alkalinity and resulting reduction in atmospheric CO₂.