Björk Brynjarsdóttir
Credit: Karim Iliya
2026

Björk Brynjarsdóttir

Systems Designer & Environmental Entrepreneur

from leftovers to living earth

meet björk

Björk Brynjarsdóttir is a systems designer and environmental entrepreneur working at the intersection of circular economy, community innovation, and climate action. With a mission to bring life back into desert soils, she’s the co-founder and CEO of Melta, a decentralized system that transforms food waste into nutrient-rich fertilizer through fermentation. With a background from the human-centered business school Kaospilot, Björk brings a deeply participatory and design-driven approach to systemic change. Her work is reshaping rural waste management and soil regeneration by combining microbial science, behavioral insights, and scalable low-tech infrastructure. In just a few years, Melta has proven its potential to reduce emissions, restore degraded soils, and make sustainable agriculture more accessible. Björk is driven by the belief that when we design systems that allow people to participate meaningfully, people will rise to the challenge of climate adaptation.

from leftovers to living earth
Nominated by: Karim Iliya MI'24
Class of 2026 Location Iceland
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Credit: Karim Iliya
Credit: Karim Iliya

In a world where so much of the conversation revolves around sacrifice or catastrophe, I believe we need new stories that are grounded in participation, agency, and restoration. That’s what led me to co-found Melta, a system that transforms food waste into regenerative fertilizer, helping rural communities cut emissions, reduce costs, and bring life back to degraded soils. In Iceland, where up to 40% of our soils are severely eroded, we’ve seen firsthand how a single dose of Melta fertilizer can bring life back into our soils. It’s powerful to know that something as ordinary as food waste can become a tool for healing if we design the system right.

The impact of my work lives in both the soil and the system. On the ground, we’re making soil carbon sequestration and regenerative agriculture more accessible. In the bigger picture, we’re proving that small municipalities which often get left behind can lead in climate innovation.

Looking ahead, my hope is to continue designing systems that build trust between people and the planet. Systems where residents are seen not as waste producers, but as vital participants in regeneration. Where microbes, not machines, drive transformation. And where every banana peel and leftover plate becomes part of a much bigger story of circularity, restoration, and hope.

“My hope is to continue designing systems that build trust between people and the planet. Systems where residents are seen not as waste producers, but as vital participants in regeneration.”

- Björk Brynjarsdóttir

At Melta, we are exploring what happens when we treat food waste not as a burden to be managed, but as a living material full of potential. We are challenging the idea that innovation needs to be high-tech, urban, or large-scale. Our tools are buckets, microbes, and community. Our laboratory is the home, the compost bin, the wind-swept field. And our goal is to restore something fundamental: the relationship between people, land, and the cycles that connect them.

In rural communities, where infrastructure is often outdated or inaccessible, we are designing circular systems that are deeply local, human-centered, and scalable. We’re pushing the boundaries of what waste management can look like when it is rooted in trust, not control. When residents become active participants in regeneration rather than passive users of a system.

Exploration, to me, is about being willing to look closer. To pay attention to overlooked materials and marginal places. It is about listening to people who are often left out of climate innovation, and asking how their knowledge, care, and labor can lead the way forward. Our work with Melta is not just about reducing emissions or producing fertilizer. It is about expanding who gets to be part of environmental change, and what that change looks like in practice.

never stop exploring

LEARN MORE ABOUT THE CLASS OF 2026

View the EC50 print publication