Increased freshwater influx into the North Atlantic disrupts the Atlantic Meridional Overturning Circulation by which mechanism?

💡 Explanation

When freshwater influx increases, surface water density reduction weakens the density gradient that drives the sinking of cold, saline water in the North Atlantic, disrupting the AMOC. Therefore reduced surface water density results, rather than other changes, because buoyancy differences from salinity and temperature drive thermohaline circulation.

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