Which risk increases when glacial meltwater disrupts North Atlantic circulation?

💡 Explanation

Reduced salinity from meltwater slows down the Thermohaline Circulation due to decreased density differences at high latitudes; this inhibits North Atlantic Deep Water formation because the density gradient weakens; therefore the ocean absorbs less CO2, rather than alternatives related to oxygen, nutrients, or coastal currents.

• Which mechanism causes lake upwelling following seasonal stratification?
• Which outcome occurs when acidic rainforest litter accumulates?
• Which erosional effect results from prolonged lahar flows?
• Which risk increases when significant continental glaciation retreats?
• Which outcome occurs when stratospheric air descends near 30° latitude?
• Which landform feature forms when longshore drift connects an island to the mainland?