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  • Profile image of Dr Katja Riedel, an atmospheric chemist
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 13 June 2016 Size: 300 KB Referencing Hub media

    Katja is an atmospheric chemist working at NIWA. She looks at trapped gases in the Antarctic ice to see what it can tell us about past climates.

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