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Measuring photosynthesis: the Fluxnet network refines theoretical models
Using measurements of the FLUXNET global network , an international team led by the Max Planck Institute, with participation of the Laboratoire des Sciences du Climat et de l’Environnement (LSCE / IPSL, CEA-CNRS-UVSQ), was able to quantify more precisely the exchange between atmosphere and terrestrial ecosystems, related to photosynthesis.
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What is the link between atmospheric ozone and early solar system solids ?
Finding out whether such a link does or does not exist is one of the key questions allowing to better understand solar system formation. Current knowledge suggests that the oxygen isotopic composition of the oldest solar system solids is either caused by molecular self shielding in the solar nebula or by a certain class of chemical reactions. Depending on the mechanism, physico-chemical conditions in the nebula are very different, explaining the interest in this question.
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