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← GeographyWhich risk increases where the North Atlantic Deep Water formation slows?
A)Reduced ocean carbon dioxide sequestration✓
B)Increased coastal upwelling intensity
C)Amplified equatorial current shear
D)Decreased thermocline layer depth
💡 Explanation
Slowing North Atlantic Deep Water reduces the ocean's vertical Heat Transport Circulation, because less dense, fresh water stays at the surface capping colder, saltier water. Therefore, less cold, CO2-rich water sinks to the deep ocean, rather than enhancing global carbon sequestration.
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