What happens to the rate of methane release from thawing permafrost soil as the depth of the active layer increases?

💡 Explanation

Methane production increases as more organic material becomes available for decomposition by methanogenic microbes in the thawed active layer, because increased active layer depth enables greater decomposition; therefore, methane release rates increase, rather than decrease or remain constant.

• Seismic surveys use controlled explosions; what happens to P-waves at the mantle-core boundary because of the density change?
• A prolonged drought reduces soil moisture, intensifying a dust storm. What happens to the saltation threshold wind speed?
• A coastal engineer proposes planting mangrove forests to protect a shoreline. Which outcome occurs when mangrove root systems are fully established?
• A volume of cold, salty water sinks in the North Atlantic — which process explains this phenomenon?
• If ice sheets experience increased melting, which consequence follows?
• Which mechanism explains why index minerals indicate specific pressure-temperature metamorphic facies?