. 2016 Sep 14;11(9):e0161947. doi: 10.1371/journal.pone.0161947

Table 3. Global estimates of carbon emissions using the average of both models and applying correction factors without (model A_C) and with allocation (alloc. A_C), and results from the training dataset or previous literature (prev.).

		Average (kg/MWh)	Median (kg/MWh)	Max (kg/MWh)	Total (Tg/a)	Total (Tg C/a)
CO₂	Prev.	85.0^a	74.4^b	47055^b	NA	82.0^a ^c ^d
	Model A_C	236	102	62733	840	229
	Alloc. A_C	173	55.1	62733	615	168
CH₄	Prev.	3.5^a	0.9^b	2523^b	NA	7.9^a ^c ^d
	Model A_C	4.94	0.63	15072	17.5	13.2
	Alloc. A_C	2.95	0.43	5024	10.5	7.84
CO_2e	Prev.	NA	NA	NA	288.0^c	NA
	Model A_C	404	136	501387	1436	NA
	Alloc. A_C	273	84.0	167129	970	NA

^a Hertwich [8]

^b Derived from the training dataset as provided in the supporting information of Barros et al. [7] and Hertwich [8]

^c Barros et al. [7]

^d The values are recalculated from the average emissions given by Hertwich [8]. The author reported 76 and 7.3 Tg C for CO₂ and CH₄, assuming 3288 TWh total hydroelectricity generation in 2009 compared to 3551 TWh assumed in this study. Barros et al. [7] reported 48 and 3 Tg C.

Table 3. Global estimates of carbon emissions using the average of both models and applying correction factors without (model AC) and with allocation (alloc. AC), and results from the training dataset or previous literature (prev.).

Table 3. Global estimates of carbon emissions using the average of both models and applying correction factors without (model A_C) and with allocation (alloc. A_C), and results from the training dataset or previous literature (prev.).