| Spectrum
of ice volume history |
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| Note the
clear peaks |
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| in the
spectrum at |
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| the time
scales |
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| associated
with |
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| orbital
variability. In |
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| fact over
95% of the |
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| variability
occurs at |
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| these time
scales. |
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| The idea
that orbital |
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| variations
might be |
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| responsible
for |
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| climate
variability is |
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| called the |
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| Milankovitch
theory |
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| of
climate. |
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