* Microsoft and Running Tide signed Two-Year agreement in 2023 to remove up to 12,000 tons of carbon through an ocean-based carbon removal system.
* In Canada, a North Atlantic Carbon Observatory (NACO) project is underway to establish an accurate measurement of the ocean's ability to continue to absorb carbon with particular emphasis on deep blue capacity.
* In Denmark, the "Greensand" project  is underway to capture carbon at source and deposit it in the deep blue regions of the North Sea, creating a CO graveyard. The project is expected to store up to eight million tonnes of CO per year by 2030.
* A restoration project in South Australia will cover  of mangroves, salt marsh and sea grasses extending  in the St Vincents Gulf and Spencer Gulf in South Australia. The project will also look at various possibilities of insuring the huge expanse of existing blue carbon ecosystems.
* In South Korea, macroalgae have been utilized as part of a climate change mitigation program. The country has established the Coastal CO Removal Belt (CCRB) which is composed of artificial and natural ecosystems. The goal is to capture carbon using large areas of kelp forest.
* Marine permaculture also fixes carbon in seaweed forest projects offshore in Tasmania and the Philippines, with potential use from the tropics to temperate oceans.