iGlass (Using Interglacials to assess future sea level rise scenarios): The NERC funded iGlass consortium aims to better understand the processes of ice-sheet and sea-level response to climatic forcing, using data from the recent geological past. Existing sea-level rise projections do not account for the longer-term changes in global land-based ice volume. Although this ice-sheet contribution to sea-level change develops over decades to centuries, its long-term impact is large and virtually irreversible. It therefore dominates the uncertainty in future sea-level projections. The aim of the project is to quantify sea-level variation during interglacial periods (warm periods in between ice ages) and quantify relationships between global ice volume and climatological control processes.