July 9, 2026
Ocean alkalinity enhancement (OAE) is an emerging marine carbon dioxide removal (mCDR) pathway that boosts the ocean’s capacity to absorb atmospheric CO2. OAE is still in the research and field-trial phases and has not been deployed at scale. The En‑ROADS Simulator, co-developed by Climate Interactive and MIT Sloan, now includes detailed modeling of OAE so you can test its potential.
Developed in partnership with Ocean Visions, this new feature in En‑ROADS models two methods of OAE: mineral-based and electrochemical. Discover how much this experimental solution could contribute to carbon removal, along with its limitations and interactions with other parts of the system.
With this feature, you can:
Visualize and test scaling mineral-based and electrochemical OAE with new graphs and sliders
Adjust a scenario based on factors such as cost, energy requirements, material inputs, and more
Assess the impact of deploying OAE at scale on atmospheric CO2
Watch a summary and demonstration of the OAE update in En‑ROADS.
Whether you’re preparing for an upcoming event, briefing decision-makers, or are curious about the dynamics of OAE, this new feature in En‑ROADS creates opportunities to test alternative scenarios. Use it to add a new layer to your En‑ROADS workshops, games, and discussions by grounding conversations about carbon removal in the latest science. If you want to go deeper, our explainer includes guidance on the new features and how to use them in practice.
We’re grateful to everyone who contributed to this update. Development of this feature was generously funded by Ocean Visions. This work was guided by recommendations, review, and testing by colleagues, En‑ROADS Climate Ambassadors, and experts from institutions including: