Kelp: The Wonder Plant Restoring Ocean Biodiversity
- Apr 29, 2025
- 4 min read
Updated: Apr 29
The Urgent Need for Kelp Restoration
Kelp is a wonder plant with many critical roles. It acts as a natural coastal defense system and a foundational species for a variety of ocean life. These underwater rainforests are also essential carbon sinks. However, in northern Norway, native kelp has been devastated. Urchins, a species with an insatiable appetite, have proliferated due to overfishing of their natural predators. This has turned once-vibrant kelp-green waters into barren landscapes, stripped of their natural biodiversity.

Ocean Green Consortium’s Mission
The Ocean Green consortium aims to restore this balance. The UN Ocean Decade-endorsed project is unprecedented in its scale and ambition. It plans to restore kelp forests over a large area, with a long-term vision.
“We know that restoring the kelp forests of northern Norway will provide a huge boost to local biodiversity,”
– Dagny-Elise Anastassiou, chief impact officer at Ava Ocean, lead on the Ocean Green Project.
Anastassiou highlights how quickly kelp can return when urchins are cleared. Ocean life flourishes alongside it. This restoration is not just beneficial; it’s essential. Healthy kelp forests serve as nature-based sea defense systems and offer significant carbon sequestration. By creating a new urchin fishery, Ocean Green promotes a zero-waste circular economy that provides social benefits to local communities. These tangible, holistic advantages should accompany any credit system—whether focused on carbon removal or biodiversity.
Investment in a Sustainable Future
Anastassiou stresses the need for a robust investment framework that enhances transparency. “Carbon and biodiversity credits are a genuine win-win for hard-to-abate emissions,” she notes. However, they must deliver real value. High-quality credits allow companies to invest in sustainability projects like Ocean Green while providing funding stability for these initiatives, enabling them to achieve more over time.

Exploring Biodiversity Credits
Nata Tavonvunchai, a sustainability consultant with Across Nature, collaborates with Ocean Green on innovative solutions. She explains that biodiversity credits are a relatively new concept. They provide a more tangible alternative to traditional carbon-focused models, which can be harder to visualize. Biodiversity credits evaluate metrics like species count, diversity, habitat complexity, and structure.
Tavonvunchai emphasizes the need for permanence in credits. “The focus should be on holistic benefits, not just carbon,” she states. The lifespan of a kelp plant affects its carbon sequestration ability, and research continues in areas like the role of kelp detritus in the deep sea. However, the Ocean Green project emphasizes the importance of ensuring that biodiversity and social benefits endure, targeting both longevity and tangibility.

Understanding Carbon Credits
What Are Carbon Credits?
Carbon credits are designed to offset unavoidable emissions as companies strive to become greener. However, critics question the efficacy and impact of some traditional credits. It is increasingly recognized that certain sectors—especially those with hard-to-abate emissions—cannot achieve net-zero goals without a carbon credit system. Tavonvunchai also emphasizes that with biodiversity credits being relatively new, they provide a unique opportunity to learn from prior criticisms and to deliver a higher impact.
As the sector evolves, experts from major firms like Nasdaq and McKinsey, as well as the Science Based Targets Initiative, advocate for an upgraded credits system. There is a pressing need for new solutions that address a broader range of challenges beyond carbon alone.
The Growing Demand for Biodiversity Credits
The demand for high-quality credits significantly surpasses the current offerings in the carbon market. There is an urgent necessity for innovative, high-quality solutions that can address multiple challenges in the long term. Investors—including major entities like Norges Bank Investment Management —are driving the potential for biodiversity credits as a solution to sustainability challenges.
A Circular Economy Project
One of Ocean Green's objectives is to become a self-sustaining endeavor. The project has secured NOK 47 million from the Norwegian government’s Green Platform grant for a three-year term. Additionally, they are exploring the establishment of a new fishery to support their efforts financially.
As they work to remove urchins on a large scale, allowing kelp to flourish in northern waters, scientists are also investigating economically viable products that can stem from zero-waste practices. These products not only advance the project but also create a model for others battling urchin barrens globally.
Carbon and biodiversity credits provide another funding avenue. “These credits are intended to create a long-term, independent funding source for projects like Ocean Green,” Tavonvunchai explains. The vision is a virtuous cycle: funding from credits nurtures regenerative projects that enhance biodiversity. This market represents a significant opportunity with an estimated worth of $479.4 billion in 2023, projected to grow at a compound annual growth rate of 39.4% from 2024 to 2030. There is a distinctive chance to channel financial resources into projects that leave a lasting positive impact on the environment.
In conclusion, the restoration of kelp forests is critical. It not only aids in the recovery of biodiversity but also fosters a sustainable economic model that benefits both the environment and local communities. The efforts of the Ocean Green consortium represent a model approach to addressing the pressing issues facing our oceans today.




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