• Current GCM
models
predict an increase
in
temperature of
around
+2.5oC with a doubling
in [CO2] from 1994
levels.
• This increase would
result in an
increase
in the levels of
the
worlds oceans.
• Including the feedback
effects of clouds may
vary DT from 1.5
- 4.5 oC.
• GCM models are
now
coupled to the C cycle
(biotic influences).