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Published online 14 April 2005 | Nature | doi:10.1038/news050411-9

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Sea-level records reveal surprising choppiness

Fresh analysis shows that levels changed even between ice ages.

A new reconstruction of past changes shows that the level of the oceans varied more dramatically during between ice ages than was previously thought, implying that the global climate during these intervals was not as stable as most scientists think.

One of the best ways to document the rising and falling of the oceans over time is by coral dating.

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