Permafrost degradation is widespread across the Arctic and subarctic, occurring both through gradual top-down thaw and also through more abrupt thaw processes associated with surface subsidence and collapse, known as thermokarst. Thermokarst terrain is expanding in many areas and poses a significant threat to ecosystems, human infrastructure and communities, and landscape stability. Identification of thermokarst features in their early stages remains challenging, with the exact drivers and subsurface mechanics still poorly understood. This makes forecasting even at short timescales difficult to constrain. We invite contributions that integrate data from a variety of disciplines (including geology, ecology, soil science, and polar science) and a range of approaches (including field, remote sensing, and modeling efforts) that explore the detection, drivers, underlying dynamics, and prediction of thermokarst across diverse landscapes. We seek to bring together interdisciplinary presenters to gain a more holistic understanding of the state of thermokarst research.