Seaweed is an overlooked, but highly versatile climate solution, says Forbes in its coverage of a new study by investors. The article highlights the numerous co-benefits of seaweed; it’s a low-carbon food crop that requires few inputs, it has the potential to replace fossil fuel-derived plastics, and, the article even touts the crop as “the largest carbon sinks in the world”, although research disputes this claim. 

This paper gives an overview of the prospects for algae production as a source of protein as well as other nutrients including vitamins, beta-carotene and polyunsaturated fatty acids in Europe. The authors examine algae as a source of protein, the current European protein market and challenges and opportunities for production in Europe.

Seaweed farming is being championed as a magic bullet for food systems and the environment, promising to capture carbon, rehabilitate ecosystems and feed the world. Recent reporting from the Guardian investigates one seaweed enterprise, the Climate Foundation, and its mission to win Elon Musk’s $100m Xprize. 

This paper maps the global potential for producing 34 varieties of seaweed and uses five scenarios to model the impacts of expanding the use of seaweed for human food (10% of diets), animal feed (10% of intake), transport fuels (50%), all three of the previous uses, or supplementing ruminant feed (0.5% of feed) to reduce enteric methane production and increase feed conversion efficiency.

This article by FoodPrint discusses the tension between the purported environmental benefits of kelp farming and consumers’ lack of familiarity with kelp as a food, and describes “regenerative” kelp farming systems that also produce oysters, clams and mussels. It sets out several ways in which kelp can be used, including in foods such as pesto or lasagne, as well as other uses such as bioplastics, fertiliser, biofuel and animal feed.

This book by Ruth Kassinger uses case studies to explore how algae could be used to produce food, fuel and packaging materials.

This report from US charity The Nature Conservancy explores how private investors can help to meet the demand for sustainable seafood by investing in new forms of aquaculture that have lower negative environmental impacts than conventional aquaculture.

The World Bank has released a short working paper arguing that the expansion of seaweed farming in tropical developing countries could have large positive impacts on local poverty, ecosystem management and climate change mitigation. The report goes through different benefits and uses of seaweed production and briefly discusses current and potential markets for the crop.