permafrost

noun

per·ma·frost ˈpər-mə-ˌfrȯst

: a permanently frozen layer at variable depth below the surface in frigid regions of a planet (such as earth)

Examples of permafrost in a Sentence

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This projection does not factor in tipping points, such as the collapse of the West Antarctic glacier and the thawing of methane-rich Arctic permafrost, that if reached would further destabilize the economy. —

John Kostyack, Forbes, 15 Oct. 2024 The creek is fed from the pure ice of shrunken glaciers above and ancient permafrost in the ground below. —

Jon Waterman, Outside Online, 22 Oct. 2024 When the permafrost under airstrips melted, the pavement buckled, and the resulting potholes could damage landing gear. —

Paul Bierman, Smithsonian Magazine, 19 Sep. 2024 In the fall of 2016, soaring temperatures caused the permafrost encasing a remote Norwegian mountainside to thaw. —

Ayurella Horn-Muller Syris Valentine, WIRED, 31 Aug. 2024 See all Example Sentences for permafrost