Which cascading failure results when thermokarst degradation compromises Arctic infrastructure?

A)Methane release exacerbates warming trends✓

B)Decreased albedo increases solar absorption

C)Ecosystems shift toward temperate forest

D)Glacial rebound induces seismic activity

💡 Explanation

Positive feedback occurs when the melting permafrost releases methane (a strong greenhouse gas) via microbial action, a process called methanogenesis; because this enhances atmospheric warming, which further accelerates permafrost thaw, it leads to further methane release, rather than the immediate effects on other systems.

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Which cascading failure results when thermokarst degradation compromises Arctic infrastructure?

💡 Explanation

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