General cooling since when? The 1930s?
Nah, since the latter quarter of the current interglacial period.
Figure 1-2 Climate of the last 2400 years (GISP2)
Figure 1-3 Climate of the last 12,000 years (GISP2)
General cooling since when? The 1930s?
Nah, since the latter quarter of the current interglacial period.
Figure 1-2 Climate of the last 2400 years (GISP2)
Figure 1-3 Climate of the last 12,000 years (GISP2)
AG, your point is well-taken. In fact, the Holocene Maximum occurred about 5 to 6 thousand years ago, and generally we have been cooling since then. In fact, just by looking at charts, it would seem that we have already begun a downward trend toward the next ice age. I know that timing of ice ages are generally understood to be driven by peak points of Milankovich Cycles. Does anyone know just what the current status is of the 3 Milankovitch cycles are: (Eccentricity, Obliquity, and Precession)? Just from graphs, it would seem we must be very near to the next 100kyr Eccentricity cycle peak.
How dare you introduce facts into this discussion.
Holocene periodicity in North Atlantic climate and deep-ocean flow south of Iceland, Bianchi and McCave, Nature 397, 515-517.
Centennial-Scale Holocene Climate Variability Revealed by a High-Resolution Speleothem del 18 O Record from SW Ireland, McDermott, Mattey, and Hawkesworth, Science, 294(5545), 1328-1331.
I tried but I can't find a sufficiently high-resolution del 18 0 record from the Southern Hemisphere allowing discernment of the late BC -- early AD era.
