The first International Open Science Conference organized by PalMod will be held in Vienna, Austria back-to-back with the 2018 EGU meeting. Sessions: (i) Feedbacks, thresholds, and abrupt changes in the Earth System dynamics during the last deglaciation (ii) Spectrum of climate variability (governing processes, energy transfer across century-to-orbital timescales (iii) Cryosphere-climate interactions (iv) Novel methodological aspects of long-term simulations and reconstructions