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g. in the opal skeleton of diatoms). The special thing about this is that the geochemical fingerprint of both substances differs depending on the environmental conditions that prevailed when the diatoms [...] example, the air temperature that prevailed at the time of formation," says AWI climate researcher Dr Hanno Meyer. He heads the ISOLAB Stable Isotope Facility at the AWI Potsdam, where some of the world's most [...] Temperature data of the last 200,000 years The EPICA DML ice core had a length of 2.892 metres. In order to find out what temperature data is stored in the various ice layers of the core, the scientists took