Paine et al. show that seaweed farming (with Macrocystis) for CO2 sequestration (#OceanAfforestation) requires much more iron nutrients than available in the open ocean. Thus, offshore Ocean Afforestation would potentially require Ocean Iron Fertilization
nature.com/articles/s4200…
Growing seaweed in the open ocean is seen as a viable way to remove CO2 from the atmosphere. But a new IMAS PhD study reveals the ocean's iron levels are too low to sustain seaweed growth–a fact scientists say should be part of the ocean afforest'n debate: tinyurl.com/23rd5yrj
My new paper titled, 'Iron limitation of kelp growth may prevent ocean afforestation’, was recently published in Nature Communications Biology!
Read here: nature.com/articles/s4200…