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Panelists call for scrutiny of marine carbon dioxide removal and clearer governance
Summary
Speakers warned that marine carbon dioxide removal techniques — from ocean alkalinity enhancement to kelp burial — are early-stage and could alter food webs; they urged better scientific understanding and cross-sectoral governance rather than rapid deployment.
At a session hosted by the International Science Council at the UN Ocean Conference in Nice, panelists described marine carbon dioxide removal (MCDR) techniques as poorly understood and urged caution before large-scale deployment. "If I say the word marine carbon dioxide removal, I think many people wouldn't know what that is," said Dr. Peter Oan, policy director at the Institute of Marine Research in Norway.
Dr. Oan reviewed approaches sometimes discussed under MCDR — ranging from ocean alkalinity…
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