Which hazard is heightened as talik formation expands?

💡 Explanation

A talik promotes subsurface thawing, leading to decomposition of organic material through microbial activity within the permafrost producing increased rates of methane emission, a potent Greenhouse gas, because anaerobic conditions are produced. Therefore, methane release increases under talik expansion, rather than decreases in thermokarst features.

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• Which risk significantly increases after a pyroclastic surge buries a temperate glacier?