About

Seafields is a UK-based seaweed valorisation and climate-tech business which is strongly focused on delivering innovative solutions to tackle climate change. The company is pioneering new technologies focused on the tracking, managing, cultivating, harvesting, and processing of Sargassum, a sustainable seaweed biomass feedstock that can power a new regenerative ocean economy.

Using its unique approach, Seafields is radically tackling the challenge of climate change and ultimately aims to remove over 1Gt (one billion metric tonnes) of CO2 from the atmosphere each year.

Every year, millions of tonnes of Sargassum wash up on coastlines across the Caribbean and Mexico, choking ecosystems, damaging tourism and harming fishing industries. But Seafields is rewriting the script by turning this threat into an opportunity. Through its innovative SeaClear solution, Seafields is intercepting the seaweed, managing it and unlocking its value by providing it as an industrial feedstock to companies who can turn it into useful circular products such as sustainable packaging, skincare, bioplastics, biochar and eventually biofuels.

Seafields takes this a step further with its revolutionary SeaGrow solution, cultivating and harvesting Sargassum in the open ocean to create a consistent, year-round supply of biomass. This biomass becomes a critical feedstock for emerging bio-based industries, with the primary focus on producing high-value biostimulants. Any remaining pulp that is not sold on to industry is then converted into biochar, creating permanent carbon removal credits and completing a zero-waste, closed-loop circular business model.

The open ocean operations that Seafields is planning have virtually unlimited potential. By deploying SeaGrow to cultivate Sargassum seaweed in subtropical ocean gyres, Seafields will utilise areas of the ocean that are currently totally unproductive and where giant floating garbage patches are growing. If Seafields replaced the garbage patches in the Indian Ocean and South Atlantic with seaweed, it would remove 42 billion tonnes of CO2 (one billion metric tonnes = a gigatonne = Gt). 42Gt CO2 is equivalent to humanity's entire annual carbon footprint.