These photos show a variety of terrain in the arctic tundra that is undergoing change.

Drunken trees in a black spruce forest near Fairbanks, Alaska. As permafrost thaws, the ground subsides, and surface moisture conditions can become too wet for the trees to survive.
Miriam Jones

Rainbow over a peatland in the Susitna Valley, just to the south of the Alaska Range.
Miriam Jones

Permafrost degradation on the southern Seward Peninsula. The lake formed as a previously frozen ice wedge thawed.
Miriam Jones

Collapse scar fen near Fairbanks formed when permafrost thawed, the ground subsided, and surface moisture conditions increased.
Marian Jones

Peat overlying an ice wedge that is exposed as a result of permafrost thaw.
Miriam Jones

Rainbow on the southern Seward Peninsula.
Miriam Jones

Thermokarst lakes in the Yukon-Kuskokwim Delta.
Miriam Jones

Massive ice wedge on near Cape Espenberg.
Miriam Jones
