Tundra: This is a type of biome where the tree growth is hindered by low temperatures and short growing seasons. It's like the 'neighborhood' where permafrost 'lives'.
Thawing Permafrost: This refers to when warming temperatures cause permafrost to melt, often releasing trapped gases like methane into the atmosphere.
Cryosphere: This term encompasses all places on Earth where water is in its solid form, including ice caps, glaciers, and permafrost.