Which mechanism reduces surface nutrient concentration when upper ocean stratification intensifies?

💡 Explanation

When stratification intensifies because of warming surface waters, thermohaline circulation weakens because density-driven sinking is reduced, thereby decreasing nutrient transport from deep waters. Therefore decreased thermohaline circulation results, rather than Ekman transport, upwelling or dust deposition, which involve different physical drivers.

• In wetlands, which outcome from iron oxidation accelerating?
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