Title: Deglacial%20Climate%20Change
1Deglacial Climate Change
2Radiocarbon dates showing the retreat of the N.
American ice sheet
3Coral data provided data on the rate of sea level
change
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5Proxy records provide evidence for a cold episode
(Younger Dryas) that interrupted the deglacial
process.
6The Greenland ice cores show rapid (lt100 yrs)
changes in ice accumulation and dust.
7Routes of meltwater flow
8Deglaciation flooding of coastlines
9Tropical monsoons were stronger in the northern
hemisphere 9,000 yrs ago
10Proxy records also show tropical monsoon maximum
9,000 yrs ago.
11Decreased summer insolation in the northern
tropics has produced weaker tropical monsoons.
12Decreased summer insolation at high northern
latitudes during the last 6,000 yrs coincides
with cooler temperatures.
13Humans and Paleoclimate
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16The spread of agriculture
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18Quelccaya ice cap in Peru
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21The Little Ice Age could have resulted from
orbital-scale cooling or from a millennial-scale
oscillation.