Dire predictions of global climate change call for drastic action. CO₂ geological storage is expected to have a significant role in reducing carbon emissions – an essential step in mitigating climate change. Safe and efficient implementation of this technology requires understanding the physical processes occurring when CO₂ is injected into subsurface reservoirs (e.g., deep saline aquifers) and accurate modeling. This session will present recent advances in modeling CO₂ geological storage. Processes may include flow, convection, dissolution, geochemical reactions, geomechanics and more. Both experimental and computational investigations on various scales, spanning from core samples to reservoir scales, are included.