The activities are as follows: The Arctic is home to a unique biome, known as tundra. Found at Earth’s northernmost region, the tundra ecosystem is defined by frozen land. Permafrost is a thick underground layer of organic matter, soil, rock, and ice that has been frozen for at least two full years. Each summer as the temperature warms, a thin
permafrost
Streams as sensors: Arctic watersheds as indicators of change
The activities are as follows: The Arctic, Earth’s region above 66° 33’N latitude, is home to a unique biome, known as tundra. A defining trait of tundra ecosystems is the frozen land. Permafrost is the underground layer of organic matter, soil, rock, and ice that has been frozen for at least 2 full years. Plant material decays slowly in the