A transport refrigeration system (TRS) for an enclosed space of a transport unit that includes a ventilation pathway to direct air to flow from the enclosed space. The TRS includes a refrigerant circuit with an evaporator configured to cool the air, and a CO.sub.2 scrubber. The CO.sub.2 scrubber includes a metal organic framework (MOF) configured to adsorb CO.sub.2 from the air in an adsorption mode and is regenerated with ambient air in a regeneration mode. A transport unit includes an enclosed space for storing produce, a ventilation pathway, and a TRS. A method of conditioning an enclosed space of a transport unit includes operating a TRS in a first mode that cools air from the enclosed space and adsorbs, with a MOF in a CO.sub.2 scrubber, CO.sub.2 from the air, and operating the TRS in a second mode that regenerates the MOF with ambient air.

A storage system for a boat includes one or more storage compartments situated in a bow of a boat. An air flow path includes an air inlet opening, the storage compartment, and an air outlet opening. A fan is situated to move air along the air flow path. The fan may be positioned proximate one of the air inlet and the air outlet, for example.

A storage system for a boat includes one or more storage compartments situated in a bow of a boat. An air flow path includes an air inlet opening, the storage compartment, and an air outlet opening. A fan is situated to move air along the air flow path. The fan may be positioned proximate one of the air inlet and the air outlet, for example.

A methods and systems of fumigating a vessel include delivering fumigant to a cargo area of the vessel. In particular, the vessel may be a roll-on/roll-off vessel. In such a system, an air pressure system is provided for maintaining a selected minimum pressure differential between a selected area of the vessel above the cargo area and the cargo area, such that pressure of the selected area is greater than the cargo area. A control system may maintain the pressure differential.

A methods and systems of fumigating a vessel include delivering fumigant to a cargo area of the vessel. In particular, the vessel may be a roll-on/roll-off vessel. In such a system, an air pressure system is provided for maintaining a selected minimum pressure differential between a selected area of the vessel above the cargo area and the cargo area, such that pressure of the selected area is greater than the cargo area. A control system may maintain the pressure differential.