PerspectivePALEOCLIMATE

Glacial Puzzles

Science  04 Sep 1998:
Vol. 281, Issue 5382, pp. 1467-1468
DOI: 10.1126/science.281.5382.1467

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Summary

One of the great puzzles of geoscience is the origin of the 100,000 year cycle between ice ages. In her Perspective, Raymo discusses efforts to model glacial and interglacial climate changes. A very promising attempt, inspired by models of ocean circulation, has recently been published that treats the climate as a system of steady states with rules for moving from one to the next. Although our understanding of these rules is far from perfect, such efforts are essential to solve the puzzle of past climate.

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