Fig. 4: Changes in voyage CO2 emissions among major countries from March 2021 to February 2024.

Left: 2021.03–2022.02, Centre: 2022.03–2023.02, Right: 2023.03–2024.02. In each subplot, line colours represent the origin countries of the voyages.

Left: 2021.03–2022.02, Centre: 2022.03–2023.02, Right: 2023.03–2024.02. In each subplot, line colours represent the origin countries of the voyages.