Carbon isotope composition of atmospheric CO2 during the last ice age from an Antarctic ice core

@article{Leuenberger1992CarbonIC,
  title={Carbon isotope composition of atmospheric CO2 during the last ice age from an Antarctic ice core},
  author={Markus Leuenberger and Ulrich Siegenthaler and Chester Langway},
  journal={Nature},
  year={1992},
  volume={357},
  pages={488-490}
}
BUBBLES of ancient air in polar ice cores have revealed that the atmospheric concentration of CO2 during the Last Glacial Maximum was 180–200 p.p.m.v., substantially lower than the pre-industrial value of about 280 p.p.m.v. (refs 1, 2). It is generally thought that this reduction in atmospheric CO2 during glacial time was driven by oceanic processes. The most likely explanations invoke either a decrease in dissolved CO2 in surface waters because of a more efficient 'biological pump… CONTINUE READING
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