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Environmental Science

Thermokarst Lakes and Permafrost Lowlands

Quick fact

In some regions of Siberia and Alaska, thermokarst lakes can expand by more than 20 meters per year, consuming the surrounding landscape.

Why this is interesting

You've probably seen pictures of circular ponds in the Arctic tundra. But did you know these lakes are actively carving the ground beneath them, and a single summer of warming can cause the land to slump and sink?