Storyboard: What is permafrost?

What is permafrost?
Modeling
Near-surface air temperature
Soil temperature
Rainfall
Snowfall
Permafrost extent 2015
Permafrost extent 2099
Permafrost area
Change in permafrost area
Subsidence sub-regions
Future subsidence changes
Outputs

What is permafrost?

  • Permafrost is ground that stays frozen for at least two consecutive years, covering nearly a quarter of the Northern Hemisphere.
  • As Arctic temperatures rise rapidly, this frozen ground begins to thaw,causing the land to subside, damaging roads and buildings, and releasing ancient carbon stores in the form of greenhouse gases.
  • The thaw of permafrost is both a local hazard and a global climate concern.
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