What is the primary technical challenge associated with Direct Ocean Capture (DOC) of CO2 from seawater?

Answer

The high energy intensity required to capture $ ext{CO}_2$ from water where it is highly diluted.

A major hurdle for $ ext{DOC}$ is the low concentration of dissolved $ ext{CO}_2$ in seawater, which necessitates energy-intensive electrochemical or separation processes to achieve efficient extraction.

What is the primary technical challenge associated with Direct Ocean Capture (DOC) of CO2 from seawater?
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