At Planetary, we believe the ocean holds one of the most powerful tools for tackling climate change, and today, we’re proud to share a milestone that helps bring this vision closer to reality.
Frontier buyers have signed a $31.3 million offtake agreement with Planetary to remove over 115,000 tons of CO₂ between 2026 and 2030 through ocean alkalinity enhancement (OAE).
This announcement comes on the heels of two major milestones: our XPRIZE win and the delivery of the world’s first third-party verified OAE credits. Together, they mark a new era for responsible, science-led carbon removal.
Why this matters
- Scale and cost. OAE has the potential to remove gigatons of CO₂ each year, with a credible path to costs below $100/ton.
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Innovation and leadership. Planetary delivered the world’s first verified OAE credits and is now advancing the field with the first multi-year offtake at scale.
- Community and co-benefits. Our work is shaped by partnerships with Indigenous leaders, researchers, and local communities. OAE not only removes CO₂, it also helps counter ocean acidification, improving conditions for shellfish, fisheries, and ecosystems.
Voices of support
From global buyers like Google and Stripe, to local partners like the Confederacy of Mainland Mi’kmaq, this milestone reflects growing recognition that climate solutions must be both effective and inclusive.
“This offtake with Frontier buyers allows us to demonstrate that OAE can safely and effectively remove CO₂ beyond small-scale trials,” said Mike Kelland, CEO of Planetary. “This approach could be the cheapest and most scalable carbon removal solution , and we’re eager to show how it can be rolled out responsibly.”
That recognition extends to government leaders as well:
The Honourable Julie Dabrusin, Minister of Environment and Climate Change: “I am excited to learn more about the approach of Ocean Alkalinity Enhancement (OAE) by Planetary and how it could represent a significant step forward in the fight against climate change. With its potential to remove considerable amounts of CO₂ globally each year while also potentially helping to mitigate ocean acidification, this proposed solution could contribute to the urgent carbon removal needs and benefit coastal ecosystems.”
What comes next
Deliveries under this agreement will begin in 2026, building on our Tufts Cove pilot and expanding capacity to demonstrate OAE at new scales.
We are proud of what this milestone represents: proof that ocean-based carbon removal can be rigorous, responsible, and ready to scale.
→ [Read the full annoucement here]
