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News and Views
Nature 406, 468-469 (3 August 2000) | doi:10.1038/35020176
Global change: Iron uncertainty
Adina Paytan
In these pages last week, there was an account1 of a new explanation2 for the lower levels of CO2 in the atmosphere during the last glaciation (about 130,000 to 20,000 years ago) compared with the ensuing interglacial3. Given that CO2 remains one of the main determinants of global warming, the matter is of obvious interest.
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