Scientists Doubt Ocean-Based Natural CO2 Removal Efficacy

University of East Anglia

Limited understanding of basic ocean processes is hindering progress in marine carbon dioxide removal, with the on-going commercialisation of some approaches "premature and misguided".

In a new paper, scientists from the University of East Anglia (UEA), the University of Tasmania's Institute for Marine and Antarctic Studies, Centre National de la Recherche Scientifique, and the Institute for Sustainable Development and International Relations, review the climatic effectiveness of four 'nature-based' techniques using marine biological processes.

These involve shellfish cultivation, seaweed farming, coastal blue carbon - using the restoration of seagrass, saltmarsh and mangrove forests - and increasing whale populations through 're-wilding'.

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