Which mechanism disrupts marine ecosystem nutrient cycling given increased Arctic glacial meltwater inflow?

💡 Explanation

When increased meltwater flows into the Arctic, it introduces freshwater which is less dense, leading to increased stratification, which slows thermohaline circulation by reducing overturning, limiting nutrient upwelling. Therefore, stratification results, rather than methane release, sediment deposition, or gyre divergence, processes driven by independent geological or climatological forcings.

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