Tree rings serve as remarkably detailed natural records, revealing past environmental and climate changes for annual, decadal to centennial scale, offering insights that range from local to global in scale. In recent decades, notable progress has been made in reconstructing climate variables such as temperature and hydroclimate (precipitation, drought, and streamflow) using tree-ring data from diverse regions. This progress has been driven by novel parameters beyond traditional ring-widths. This session invites contributions applying interdisciplinary tree-ring methods to reconstruct past climate across spatial and temporal scales. We encourage studies using ring width, MXD, Blue Intensity, stable isotopes, dendrochemistry, and wood anatomy. Focus areas include methodological advances, multi-proxy integration, and regional to hemispheric reconstructions. Contributions on data processing, calibration, and climate modelling are also welcome. The outcome of this session is vital for understanding past climate extremes like droughts and floods, supporting better predictions, risk assessments, and policy planning to address climate and societal challenges.