As the new Government comes into power, the UK’s ambition to position itself as a global clean Energy Superpower has been renewed. Government has expressed the need to invest in a new industrial strategy where sustainability goals are critical to deliver economic growth and achieve clean energy by 2030. This includes investing in new jobs and technologies and exploring responsible ways to utilise the UK’s naturally available bioresources.

Seaweed (macroalgae) has a pivotal role to play in delivering ambitions on clean energy, and incubation and support for this emerging industry must feature in the future industrial strategy to unlock the transformative potential it can offer. Seaweed-derived bioproducts can be used to displace fossil fuel-derived compounds across multiple sectors, including plastics, fabrics, fuels, pharmaceuticals, and the nutraceuticals industries. Furthermore, seaweed can capture more carbon than it releases to the atmosphere (carbon sink), contributing as a natural tool to tackle climate change.

To unlock these benefits, we must scale up seaweed biorefineries in the UK, but there are several engineering, bioscience and societal challenges currently holding this back. Tackling these challenges and demonstrating the feasibility and potential of scaled-up seaweed biorefineries in the UK, is the focus of important research currently being conducted by Dr Emily Kostas at the new Manufacturing Futures Lab at UCL East. It is envisioned that this research will encourage Government to support UK seaweed aquaculture and increase the availability of this versatile and sustainable feedstock.

Despite important efforts to map and characterize opportunities for seaweed farming across the UK [1]^,[2], there has been no strong policies and support at the necessary scale to realize the ambitions set above. Numerous UK companies are, in fact, currently importing seaweed from abroad (Norway and the Faroe Islands) due to the lack of a constant supply and adequate amount of seaweed biomass that is currently available here in the UK, which clearly demonstrates that there is demand and that the market is ready for this transition.

We believe there is an opportunity to sink carbon and support green energy domestically by promoting the scale-up of seaweed-derived bioproducts, biofuels, biochemicals and biomaterials that have been manufactured from UK farmed seaweed.

Therefore, we have identified three key recommendations for policy action going forward:

• Build on existing evidence base of suitable areas for sustainable aquaculture[3] and monitor the regional landscape availability and production of native seaweed feedstocks; this would ensure a constant supply and will meet the demand for a future UK bioeconomy.
• Design and deliver a new regulatory and policy framework that promotes sustainable seaweed farming and cultivation in the UK, based on solid, sustainable and responsible planning on how to best manage marine environments[4]^,[5].
• Work with coastal communities and stakeholders to explore how to meaningfully develop a plan to create job security whilst protecting natural resources and landscape.

Seaweed can provide a fresh start to ignite a new UK industrial strategy and contribute to achieving the ambitious goals of delivering clean energy by 2030 and production of alternative and sustainable products. The ability to do so rests on how effectively we can bolster the UK’s aquaculture in the years ahead.

References

[1] https://thefishsite.com/articles/initiative-aims-to-take-uk-seaweed-sector-to-the-next-level

[2]  https://www.carymor.wales/seaweed/seaweed-farming-in-the-uk

[3] Identification of strategic areas of sustainable aquaculture production in English waters: Final Report

[4] https://www.gov.uk/government/collections/marine-planning-in-england

[5] https://www.gov.scot/policies/marine-planning/