The Great Thaw is a project about permafrost thaw and how landscape is changed by it. We take a close look at ecosystems like the boreal forest, the tundra and the arctic coastline to document the impacts of the melting permafrost caused by climate change and to present the beauty of permafrost itself. After Antarctic Traces, The Great Thaw is a new part of the Ecological Grief Series which focuses on different aspects of human interaction with nature in the Anthropocene. The series investigates environmental melancholia and the loss of places, species and ecosystems. (directors' note)