Which outcome occurs when glacial melt increases substantially?

💡 Explanation

Increased glacial melt introduces freshwater, diluting ocean salinity and decreasing water density; therefore thermohaline circulation slows because 'density stratification' reduces vertical mixing, rather than upwelling intensification, which requires stronger winds.

• Which ecosystem collapse mechanism occurs in coastal South America during a strong El Niño event?
• Which mechanism governs lahar directionality flowing from stratovolcanoes?
• Which risk increases for structures founded upon unstable alluvial soils?
• Which process causes increased deposition of alluvial sediment at a river delta when average sea level rises steadily?
• Which process determines cirque orientation when valley glaciers form on mountains?
• Which geologic response commonly follows rapid isostatic rebound after glacial melt near fault lines?