Topic
Tundra, greenhouse gases, melting ice & snow, warming - Arctic Ocean, vegetation cover - tundra, tundra ecosystem, last ice age, shrub vegetation, predominant grasses, mosses and lichens
2
Tundra
1
greenhouse gases
1
last ice age
1
melting ice & snow
1
mosses and lichens
1
predominant grasses
1
shrub vegetation
1
tundra ecosystem
1
vegetation cover - tundra
1
warming - Arctic Ocean
1