Table 2 Carbon flux estimates for European regions.

Data	SURF	GOSAT	OCO2	L-VOD	JPL^a	WRI^a	UNFCCC	BLUE°^a
Period	2010–18	2010–15	2015–18	2010–19	2010–2019	2010–19	2010–19	2010–19
North	−0.08	−0.07	0.02	0.02	−0.06	−0.08	−0.07	−0.01
West	−0.20	−0.17	0.04	−0.08	−0.04	−0.13	−0.06	−0.06
South	−0.09	0.01	0.04	−0.07	−0.05	−0.11	−0.10	−0.07
East	−0.09	−0.17	−0.09	−0.04	−0.09	−0.15	−0.16	−0.08
Russia	−0.44	−0.33	−0.22	−0.41	−0.24	−0.22	−0.04	−0.04
EE	−0.53	−0.50	−0.32	−0.45	−0.32	−0.38	−0.20	−0.11
EE share	59%	68%	143%	77%	68%	54%	47%	46%
Europe	−0.89	−0.73	−0.22	−0.59	−0.47	−0.69	−0.44	−0.25

Average land carbon flux (in Gt C a⁻¹) from different datasets (see Table 1 and Fig. 2) for European regions (see Supplementary Table 1). Negative values indicate an atmospheric CO₂ sink or an increase in land C stock. Uncertainties in form of standard deviations are given in Supplementary Table 2. Net AGB carbon fluxes (if available) are given in Supplementary Table 3. Values for the study region Eastern Europe (EE: East + Russia) are displayed in bold. EE share shows the share of the Eastern European (EE) in the total European (Europe) carbon fluxes.
°Includes not only AGB, but also below-ground biomass (BGB) and soil organic carbon (SOC).
^aRefers to gross carbon sink estimates.

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