Abstract: A ship and a method are for bringing liquified gas, such as liquified carbon dioxide, CO2, from an onshore terminal for captured gas across a sea to a subsurface permanent storage reservoir. The ship has a loading line for communicating liquified gas from the onshore terminal into at least one vessel, and a processing plant. The processing plant of the ship has an injection processing module configured for injecting liquified gas into the subsurface permanent storage reservoir, wherein the injection processing module is operatively connected to the at least one vessel and an injection line provided with a connector for connecting to a flexible injection hose being in fluid communication with the subsurface permanent storage reservoir.