Aggregating XCO₂ anomaly values at the economy level, nearly half of the economies in Asia and the Pacific acted, on average, as net sources of carbon, based on XCO₂ measurements from 2014 to 2021 (see figure below). Among the economies with available data, Hong Kong, China recorded the highest positive XCO₂ anomaly (2.0), while Bhutan recorded the lowest negative XCO₂ anomaly (-2.0). Furthermore, despite their relatively small land areas, 9 of the 11 Pacific economies with available data were possibly net XCO₂ sources with positive anomalies.

The figure below shows that exactly half the economies with available data had a majority of their observation locations (at 25 km² grids) characterized as carbon sources from 2014 to 2021, while the other half had a majority of locations defined as carbon sinks. A few economies had 100% of their locations reporting XCO₂ positive anomalies (as in Micronesia; Hong Kong, China; and Niue) or 100% negative anomalies (as in Maldives and Palau), although it must be noted that these economies were each represented by only a single observation location.