Human Activity Drives Growth of Methane Concentrations in the Atmosphere
Mean CH4 emissions for Period 1 (1988-1998) (a) and the emission changes from Period 1 to Period 3 (2007-2016) (b). The pie charts show relative fractions of the mean sectorial emissions for the Period 1. Note here that the inverse model optimized total emissions and the sectorial emissions are determined mainly from the emission inventories. The emission differences in Panel b suggests emissions have decreased over much of the Europe and Japan from Period 1 to Period 3, while emissions over China and other parts of Asia, Africa and South America have increased significantly.
(Picture: NIES)
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