Seaweed grows rapidly and is very efficient at capturing CO₂ from the ocean. According to current estimations, cultivating kelp over an area of 1,400km2 could yield annually as much as 20 million tonnes, capturing 4 million tonnes of CO₂ from the sea in the process. This amounts to about 8% of Norway’s total annual emissions.
By depositing the kelp on the seabed in deep sea areas (at a depth of more than 1,000 meters), the carbon is sedimented, effectively removing it for a long period of time – maybe forever. The Seaweed CDR project aims at quantifying the potential for CO₂-removal through kelp cultivation. The main focus will be on Norwegian waters, but the results will be applicable globally.
Contact person: Jorunn Skjermo