Which mechanism accelerates the melting of permafrost when organic matter thaws in previously frozen soils?

💡 Explanation

When organic matter thaws, microbial decomposition occurs releasing carbon dioxide and methane because anaerobic conditions foster methanogenesis accelerating atmospheric warming. Therefore greenhouse gas release results, rather than albedo change or conductivity increase which require different processes.

• Which process causes isostatic rebound when glacial ice melts completely from a substantial fjord?
• Which process amplifies rock fracturing during continental collision?
• Which outcome arises when increased sediment deposition at an alluvial fan's distributary channels exceeds the channel's incision rate?
• Which soil profile alteration results from prolonged bioturbation?
• Which mechanism influences the meandering patterns of geostrophic boundary currents along coastlines?
• Which outcome occurs when extensive loess deposits erode?