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← GeographyWhich outcome occurs when global glacier melt accelerates?
A)Shifting deep ocean current pathways✓
B)Increased coastal upwelling intensity
C)Expansion of subtropical atmospheric gyres
D)Strengthened El Niño-Southern Oscillation cycles
💡 Explanation
Accelerated glacial melt causes a reduction in water density in polar regions, thus disrupting thermohaline circulation because increased freshwater input overrides salinity gradients, which drive sinking; therefore, ocean current pathways shift, rather than directly influencing upwelling, gyres, or ENSO, which are driven by wind and pressure.
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