Which outcome initiates glacial expansion when lava flows affect ice sheets?

💡 Explanation

Basal lubrication leads to faster glacial movement and expansion because the lava melts the base of the ice sheet causing increased sliding, therefore the glacier expands rather than shrinking from albedo changes or isostatic adjustments.

• Which outcome increases when polar ice melt accelerates?
• Which phenomenon occurs when air masses move poleward along the Earth's surface due to pressure gradients?
• Which erosion pattern emerges after halting longshore drift?
• Which outcome results as rivers discharge into coastal delta systems with significant sediment load and reduced flow rate during the dry season?
• Which cascading failure results when thermokarst degradation compromises Arctic infrastructure?
• Which flow pattern results due to combined orographic lift and Coriolis effect?