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  • Description: Atmospheric carbon dioxide concentration during the past 417,000 years (kya = one thousand years ago; i.e., present is at zero, right-hand side). Carbon dioxide levels are expressed as parts per million (volume). The blue part of the curve comes from historical carbon dioxide records from ice cores drilled at the Vostok station in Antarctica. The red part of the curve, on the other hand, illustrates the CO2 increase to 380 ppm between 1800 and today due to anthropogenic emissions from fossil fuels. This increase happened (and happens) on a time scale below the resolution (and outside the time frame) of the Vostok data. The values are taken from other sources instead (see Image:CO2-Temp.png and Image:CO2-Mauna-Loa.png)
  • Source: graph drawn by Hanno using data published on the web by J.-M. Barnola, D. Raynaud, C. Lorius & N.I. Barkov (2003) as "Historical carbon dioxide record from the Vostok ice core". In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A. [http://cdiac.esd.ornl.gov/trends/co2/vostok.htm]
  • Licence: released into the public domain by the originator
Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Dedhyans/EurSkeusennikMynsowDevnydhyerKampol
a-lemmyn11:42, 6 Kevardhu 2005Skeusennik an versyon a-dhia 11:42, 6 Kevardhu 20051,200 × 809 (16 KB)Hanno

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