How Do Ice Cores of Glaciers Tell Us about Past Climates?
ES2105  Predicting Temperature from Dust Data

Data on dust amounts from the Vostok ice core extend about 25,000 years further back in time than CO2 and temperature data.

  !   Use the drawing tool and the relationship you observed between temperature and dust levels to draw in your best estimate of the temperature between 165,000 and 190,000 years ago.


Jouzel et al, 1987 and Petit et al, 1990


12. Explain your reasons for drawing the temperature line as you did.


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