Environmental Engineering Reference
In-Depth Information
bitmap (looks like a duplicate of box 2-9 made from ps)
FIGURE 2.9 Components of the global CO
2
budget. (a) The atmospheric CO
2
growth rate. (b) CO
2
emissions
from fossil fuel combustion and cement production and from land-use change. (c) Land CO
2
sink (negative
values correspond to land uptake). (d) Ocean CO
2
sink (negative values correspond to ocean uptake). The
land and ocean sinks (c,d) are shown as an average of several models normalized to the observed mean
land and ocean sinks for 1990-2000. The shaded area is the uncertainty associated with each component.
Adapted from Le Quéré et al. (2009).
