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Global change

Oceanic action at a distance

A Correction to this article was published on 26 September 2002

Glacial intervals are characterized by low levels of atmospheric CO2. A new explanation for that connection invokes nutrient export from the Southern Ocean to warmer waters at such times.

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Figure 1: Variation of nitrogen and silicon isotopes from Antarctic sediments over the past 350,000 years.


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Correspondence to Raja S. Ganeshram.

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Ganeshram, R. Oceanic action at a distance. Nature 419, 123–124 (2002).

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