Which risk increases when construction on permafrost causes thaw and subsequent subsidence?

💡 Explanation

When permafrost thaws due to construction, destabilization of methane clathrates occurs because these hydrates become unstable at higher temperatures, causing methane, a potent greenhouse gas, to be released into the atmosphere. Therefore, increased methane release results, rather than albedo, enhanced nutrients, or carbon reduction, which depend on other mechanisms.

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