This study investigates how CO₂ microbubble injection influences dissolution plume migration and trapping in porous media compared to conventional gas injection. Conventional CO₂ injection often leads to rapid buoyant rise and limited dissolution. Microbubble technology, with its enhanced interfacial area and reduced buoyancy, offers potential improvements in solubility and retention, reducing the buoyant CO₂ plume. The objective is to visualize and quantify these differences in a controlled sand tank setting, providing insights for subsurface carbon storage strategies.