West Antarctic Ice Sheet – 3,563 Years Before Present

West Antarctic Ice Sheet – 3,563 Years Before Present

from 300.00

Thin Slice
Depth: 842m
Age: 3,563 Years Before Present

Air bubbles dot a thin slice of ice from the West Antarctic ice sheet. As we travel deeper into the polar ice sheets, we go back in time. Chemical analyses of ancient ice cores have uncovered a regular cycle of planetary warming and cooling over the last 800,000 years. This cycle is intricately tied to carbon dioxide concentrations, as carbon dioxide traps heat. Our current atmosphere contains carbon dioxide levels higher than those seen at anytime in the past 800,000 years.
[Click here to see 400,000 years of earth’s climate history.]

Museum grade materials
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