Environmental Engineering Reference
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(a)
700
1000
1000 C
1000 CS
UVic2.8
MPI-UW
CC_sed
GENIE-16
LTC M
Geocyc
600
500
400
300
Original CO 2 concentration
0
200
400
600
800
1000
2000
4000
6000
8000
10000
Time (year)
(b)
2500
5000
5000 C
5000 CS
UVic2.8
MPI-UW
CLIMBER
GENIE-16
LTC M
Geocyc
2000
1500
1000
500
Original CO 2 concentration
0
200
400
600
800
1000
2000
4000
8000
6000
10000
Time (year)
Figure 3.6.4 Predictions of the CO 2 concentration in the atmosphere from various
climate models
(a) The moderate scenario.
(b) The large scenario.
The fi rst 1,000 years are expanded, which gives the split scale. Colors denote different
climate models and the line styles represent different aspects that are included in the
calculations, for example, the climate feedback (C) and the climate plus sediment feed-
back (CS). Figures adapted from Archer et al. [3.14].
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