A system for capturing CO2 from a dilute gas source includes a gas-liquid contactor including a housing coupled to a plurality of structural members; one or more basins positioned within the housing and configured to hold a CO2 capture solution, the one or more basins including a bottom basin; one or more packing sections positioned at least partially above the bottom basin; a fan operable to circulate a CO2-laden gas through the one or more packing sections; and a liquid distribution system configured to flow the CO2 capture solution onto the one or more packing sections.