Which impact accelerates glacial melting when glaciers are covered by a layer of dark tephra?

💡 Explanation

Dark tephra lowers the albedo, which means more solar radiation is absorbed causing enhanced melting via radiative forcing; therefore glacial melting accelerates rather than slows, because a reduction causes a positive feedback melting cycle rather than reduced recrystallization.

• Which phenomenon initiates volcanic island formation above hotspots?
• Which outcome occurs in Arctic soils featuring construction when freeze-thaw cycles are amplified?
• Which process primarily influences the orientation aspect of cirques located in the Northern Hemisphere?
• Which pattern results from Ekman transport deflecting surface currents?
• Which effect accelerates chemical weathering rates along transform fault zones?
• Which mechanism increases stream discharge during intense orographic precipitation events?