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    • Graph of Radiocarbon carbon dioxide in the atmosphere.
    Rights: Kim Currie Published 30 June 2010 Size: 95 KB Referencing Hub media

    Atmospheric 14CO2 rose in the 1950s and 60s due to nuclear bomb testing. It has since dropped and levelled out.

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      Carbon dioxide in the atmosphere

      Long-term studies show carbon dioxide levels in the atmosphere are rising. Radiocarbon carbon dioxide peaked in the 1960s but has since decreased. Much has been taken up by the ocean. Dr Kim ...

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