We propose 2 keynote sessions of 2 hours each on multifaceted aspects of dendrochronology. The sessions provide a platform for contributions from all aspects of dendrosciences including recent advances, new approaches and cross-disciplinary challenges. Session 1 is inviting submissions addressing the variety of (palaeo)climatological and ecological aspects. Session 2 will focus on existing and novel approaches on land-surface processes, human-vegetation and climate-biosphere interactions. Presentations in the climate and ecology session will introduce research on tree growth/climate interactions, palaeoclimate, and dynamics of forest stand structure, biomass and tree-lines. The session "Natural hazards and Human perspective" incorporates topics on the impacts of extreme climate events and natural hazards (forest fires, insect outbreaks, geohazards), forest resilience, long-term growth dynamics, archaeological dating, and on new methodologies/technical advances in tree-ring proxies.