deglacial

The onset of the deglacial warming and gradual southward retreat of the winter sea-ice field between 18 and 17 cal kyr BP, occurrence of a thermal reversal centered at ca. 13 cal kyr BP Antarctic Cold Reversal, or ACR, and early Holocene occurrence of the “climatic optimum” well correlate with climatic reconstructions available from the Indian Southern Ocean and from Antarctic ice cores.

Holocene Optimum « Climate Audit 2007

The cause of this deglacial deep water warming does not lie within the tropics, nor can its early onset between 19-17 ka B.P. be attributed to CO2 forcing.

Unthreaded #21 « Climate Audit 2007

As soon as we go into an Ice age, cover the norhtern lattitudes with Ice, then go through a deglacial and hit peak ice melt and sustain it till the end of the century, all in a hundred years, then yes it might be possible.

Inhofe, UCAR and NCAR « Climate Audit 2006

This results in a 1640 yr deglacial interval for H2.

Some Geologists at Quelccaya « Climate Audit 2006

Temperature, accumulation, and ice sheet elevation in central Greenland through the last deglacial transition.

Alley at the NAS Panel « Climate Audit 2006

Deglacial Volume km3 represents the volume lost from the paleoglacier in two possible deglacial scenarios: a large volume from complete deglaciation and a small volume considering only the volume lost between successive moraine positions.

Some Geologists at Quelccaya « Climate Audit 2006

So you have taken an extraordinary warming (deglacial) where warming (natural I might add) is significantly higher than now, and then took the PEAK rate, rather than the average.

Inhofe, UCAR and NCAR « Climate Audit 2006

Thus, the deglacial interval for H1 is 290 yr, the difference between the maximum H1 Peat buried beneath a Huancane I moraine dates to 11,190 cal yr B.P., a minimum age for the H2 paleoglacier, which indicates that deglaciation of H2 was rapid and extensive.

Some Geologists at Quelccaya « Climate Audit 2006

First, the deglacial increase in pCO2 leads ice volume, eliminating sea-level-driven explanations such as those based on the submersion of the continental shelves Sowers and Bender, 1995; Broecker and Henderson, 1998.

Ice Age CO2 Cycles: Archer et al [2000] « Climate Audit 2005

Second, the deglacial pCO2 transition was slow: 6–7 kyr in one case and as much as 14 kyr in the other.

Ice Age CO2 Cycles: Archer et al [2000] « Climate Audit 2005