Which risk increases because excessive removal of vegetation occurs in permafrost regions?

💡 Explanation

When vegetation is removed in permafrost regions, the active layer thickens because the insulating effect is reduced, prompting thawing and subsequent organic matter decay which releases methane, a potent greenhouse gas, into the atmosphere. Therefore more methane is relased, rather than decreased sediment/albedo or higher sequestration because these would require increased vegetation.

• Which outcome occurs when silicate rocks undergo hydrolysis?
• Which consequence results when increased storm frequency overwhelms coastal hydraulic barriers?
• Which risk greatly increases when excessive groundwater extraction collapses subterranean karst systems?
• Which mineral accumulation occurs due to prolonged groundwater evaporation?
• Which mechanism causes loess deposition next to glacial outwash?
• Which process limits dissolved oxygen level when coastal upwelling reverses direction offshore?