Which mechanism disrupts global thermohaline circulation when extensive freshwater enters Arctic sea?

💡 Explanation

When large quantities of freshwater enter the Arctic, density decreases in the surface layers of the ocean because freshwater is less dense than saline water, inhibiting convective sinking which drives thermohaline circulation. Therefore disrupting the global circulation. This is distinct from ice melt driving increased sea level or increases in carbon sequestration due to different biological mechanisms.

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