This is how CO2 can be transformed into food for animals

(Credit: Unsplash)

This article is brought to you thanks to the collaboration of The European Sting with the World Economic Forum.

Author: Mark McCord, Writer, Formative Content


  • Deep Branch is among companies trying to boost food output without adding to climate-warming greenhouse gas emissions.
  • It uses micro-organisms to convert carbon dioxide into a protein powder that can be used in animal feed.
  • The company claims its product, Proton, can be produced with 90% less carbon than alternative protein sources, such as soy.
  • Deep Branch is one of 17 members of the Circulars Accelerator Cohort on UpLink

A British biotechnology start-up is converting industrial greenhouses gases into protein for animal fodder. The company uses a process it says can help to feed the world’s growing population while simultaneously being sustainable.

Deep Branch uses micro-organisms to synthesize carbon dioxide (CO2), the main climate-warming greenhouse gas, into a protein-rich powder.

This can be used in livestock feed, enabling farmers to reduce their reliance on traditional ingredients such as soy and fishmeal. These consume huge amounts of land and fish stocks that can instead be utilized to produce food for the growing population of humans.

“We face two big issues: how do we reduce CO2 and how do we provide more food in a sustainable manner,” says Deep Branch chief executive and co-founder Pete Rowe. “But what if you could solve two problems in one – what if you could use carbon to produce food?”

a diagram to show Deep Branch boosts the sustainable production of food
This is how Proton makes animal food more sustainable. Image: Deep Branch

Deep Branch, which was formed in 2018, calls its protein product Proton.

It has signed a deal to use CO2 captured at the power plants of British energy giant Drax. Deep Branch estimates Proton can be produced with 90% less carbon than alternative protein sources. And from a single production site, its technology would sequester as much CO2 as 300,000 cars emit from their exhausts in a year.

Keeping up with a growing population

The company is among start-ups that are searching for ways to boost food production and nutrition security for a population that’s expected to grow to almost 10 billion by 2050, according to the United Nations.

But the researchers don’t expect current food production technology to keep up the pace. The challenge is to increase food yields in a way that doesn’t worsen the already high emissions of the food production industry.

Agriculture contributes around a quarter of all greenhouse gases, according to ScienceMag.org.

Livestock farming is by far the least efficient form of food production in terms of its impact on the environment and the amount of nutrition it produces.

Beef farming, for instance, produces 60kg of CO2-equivalents per kilogram of meat, while pea production emits just 1kg.

Despite this, meat demand is expected to double in the next 30 years, Rowe said.

Circular economy pioneers

Deep Branch recognizes that protein diversification – the promotion of other forms of protein nutrition besides meat – will relieve pressure on natural resources. That’s one of the reasons the company has been accepted into The Circulars Accelerator initiative, which is backed by the World Economic Forum.

The accelerator is a collaboration with UpLink, the World Economic Forum’s innovation crowdsourcing platform, and is led by professional services company Accenture in partnership with Anglo American, Ecolab, and Schneider Electric.

UpLink is a crowdsourcing network that helps firms develop and commercialize innovations that contribute to the United Nations’ Sustainable Development Goals. sustainability

What is the World Economic Forum doing about the circular economy?

The World Economic Forum has created a series of initiatives to promote circularity.

1. Scale360° Playbook was designed to build lasting ecosystems for the circular economy and help solutions scale.

Its unique hub-based approach – launched this September – is designed to prioritize circular innovation while fostering communities that allow innovators from around the world to share ideas and solutions. Emerging innovators from around the world can connect and work together ideas and solutions through the UpLink, the Forum’s open innovation platform.

Discover how the Scale360° Playbook can drive circular innovation in your community.

Connect to Learn More →

2. A new Circular Cars Initiative (CCI) embodies an ambition for a more circular automotive industry. It represents a coalition of more than 60 automakers, suppliers, research institutions, NGOs and international organizations committed to realizing this near-term ambition.

CCI has recently released a new series of circularity “roadmaps”, developed in collaboration with the World Economic Forum, the World Business Council for Sustainable Development (WBCSD), McKinsey & Co. and Accenture Strategy. These reports explain the specifics of this new circular transition.

Connect to Learn More

3. The World Economic Forum’s Accelerating Digital Traceability for Sustainable Production initiative brings together manufacturers, suppliers, consumers and regulators to jointly establish solutions and provide a supporting ecosystem to increase supply chain visibility and accelerate sustainability and circularity across manufacturing and production sectors.

Connect to Learn More →

Among the companies working towards a circular economy are Indian tech firm Recykal, which is using cloud computing and mobile apps to coordinate recycling initiatives in India; and Hello Tractor, which is using technology to connect farmers in Africa with owners of tractors and other machinery to help them till their land more productively.

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