We empower the tiny mighty plankton
We have a problem.
We are one minute to midnight.
Humanity has impacted natural environments, our climate and biodiversity.
Our time to act is now.
Everything is connected.
We are going towards a vicious downward spiral.
Heating
Earth’s energy imbalance more than doubled in two decades, reaching 1.8 W/m² in 2023.¹
About 90% of the excess heat is stored in the ocean.²
The main cause of the rise is a darker planet: in 2023, planetary albedo hit a record low, mainly because of reduced low-cloud cover.³
Acidification
The ocean has absorbed about a quarter of human CO₂ emissions.⁴
Open ocean surface pH has fallen by 0.017 to 0.027 units per decade since the late 1980s.⁵
Declining marine life
Monitored marine vertebrate populations have declined by 56% on average since 1970.6
WHAT IF WE COULD CATALYZE THE REGENERATIVE POWER OF NATURE?
We have a solution:
We harness plankton to do what it’s best at: to capture carbon and boost oxygen.
Nature has created the perfect carbon removal mechanism, known as the biological carbon pump.
Tiny phytoplankton converts CO2 into biomass and oxygen. This is the beginning of the food chain.
Due to humans, the carbon pump has been disrupted.
We have a way to turn this around.
Our goals
1
Contribute to removing the excess >2 teratons of CO2 from the atmosphere.
2
Develop phytoplankton-based carbon removal methods that biomimic the ocean’s natural carbon cycle.
3
Develop global regulation and standardization to conduct phytoplankton-based carbon dioxide removal in a safe and controlled manner.
Catalyzing photosynthesis provides multiple benefits.
When done correctly, phytoplankton-based carbon removal such as ocean iron replenishment can be one of the most scalable, impactful, and cost-efficient solutions to address climate change & biodiversity loss.
Oceanry Policy Papers
Two perspectives on Ocean Iron Replenishment for decision makers.
Policy Paper 1: Marine carbon dioxide removal
How Ocean Iron Replenishment could fit into a marine carbon dioxide removal portfolio, and what research and governance are needed first?
Policy Paper 2: Water and nature resilience
How Ocean Iron Replenishment relates to the health and resilience of ocean ecosystems and water systems, and why this matters for EU policy?
Ocean Iron Replenishment raises questions for climate policy and for water and ocean policy.
Our two recently published policy papers look at both, using the same science and the same evidence base.
For the love of the ocean: plankton pioneers
Join us in a groundbreaking mission to heal our seas, capture carbon, and bring marine life back to full bloom — through the power of plankton.
Together, we can address the planet’s most urgent challenges.
- Mauritsen et al. (2025) AGU Advances 6, e2024AV001636
- von Schuckmann et al. (2023) Earth System Science Data 15, 1675
- Goessling, Rackow & Jung (2024) Science 387, 68
- Friedlingstein et al. (2025) Global Carbon Budget 2024, ESSD
- IPCC (2019) SROCC, Summary for Policymakers A.2.5
- Findlay et al. (2025) Global Change Biology 31, e70238
- WWF/ZSL (2024) Living Planet Report
- Pacoureau et al. (2021) Nature 589, 567
- Silsbe et al. (2025) Nature Communications 16, 5821
