Wetlands represent a globally important sources methane yet remain net carbon sinks because of the slow accumulation of sediments or peats under anoxic conditions. This stratigraphic accumulation of sediment and peat provides an ideal archive of changes in paleoclimate and associated changes carbon and greenhouse gas fluxes. Shifts in climate and sea level have altered distributions of wetlands through past climate transitions, and questions remain about the role of wetlands in sequestering carbon and emitting greenhouse gases across these transitions, which have implications for understanding their role in contributing to or mitigating future climate change. We welcome presentations that use paleoclimate archives of any kind, or modelling approaches, to 1) evaluate controls of paleoclimate or landscape transitions on carbon accumulation and loss rates in wetland contexts, or 2) quantify the impacts of wetland change on paleoclimate and carbon cycling from local to global scales spanning centuries to millennia.