This table appears in chapter 15 of the Second State of the Carbon Cycle Report (SOCCR2): A Sustained Assessment Report report.

Notes
(a) Based on the Global Synthesis of Chen et al. (2013).
(b) MARCATS, MARgins and CATchments Segmentation.
(c) For regions 3 and 13, where no data were available within the segments, the methods of Chen et al. (2013) were used.
(d) CONUS, conterminous United States.
(e) Key: CO2, carbon dioxide; g C, grams of carbon; Tg C, teragrams of carbon.

This table is composed of this array :

1450726b (11x4)

MARCATS (b) Segment No.	CO2 Outgassing (c) (g C per m^2 per year)	Number of Systems	CO2 Outgassing (Tg C per year)
1	129	3	4.4
2	11	3	0.1
3	174	0	1.1
9	96	2	3.1
10	118	15	4.0
11	–9	1	–0.3
12	–5	1	–0.2
13	–13	0	–2.1
	Total North America	25	10.0
	Approximate CONUS (d) (2, 9, and 10)	20	7.2