Figure 27. A schematic illustration of the enhanced
warming of the surface and lower atmosphere and of the ocean that would
be expected to follow from an increase in infrared opacity of the lower
layers, i.e. an enhanced greenhouse effect. With increased downward radiation,
the surface heats up from TS to the new temperature TG at which the upward
radiation just balances the sum of the downwards solar radiation and the
increased downward infrared radiation. T0 is the planetary temperature
of 255K (cf. Figure 5).
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