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Researchers are exploring the causes of variations in atmospheric CO2 emissions
Researchers are exploring the causes of variations in atmospheric CO2 emissions
03-09-2018 - A la une
Recent results obtained by climatologists working at the Laboratory of Environmental and Climate Science (LSCE: CEA/CNRS/UVSQ, Paris-Saclay) explain the relations between periods of drought and CO2 exchange between vegetation and the air. These different phenomena have a significant impact on increased levels of CO2 in the Earth's atmosphere. The atmospheric concentration of CO2 increases more rapidly during dry years: an innovative approach based on satellite More »

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Choosing the future of Antarctica
Choosing the future of Antarctica
23-08-2018 - News scientifiques
Choosing the future of Antarctica S.R. rintoul, S. L. chown, r. M. Deconto, M. H. england, H. A. Fricker, V. Masson-Delmotte, T.R. Naish, M. J. siegert & J. C. Xavier https://doi.org/10.1038/s41586-018-0173-4 Nature, Published: 13 June 2018 "We present two narratives on the future of Antarctica and the Southern Ocean, from the perspective of an observer looking back from 2070. In the first scenario, greenhouse gas emissions remained unchecked, the More »
Carbon-14 provides direct evidence of synthetic chemicals in ancient cosmetics
Carbon-14 provides direct evidence of synthetic chemicals in ancient cosmetics
23-08-2018 - News scientifiques
Absolute dating of lead carbonates in ancient cosmetics by radiocarbon, Communications Chemistry, Lucile Beck, Ingrid Caffy, Emmanuelle Delqué-Količ, Christophe Moreau, Jean-Pascal Dumoulin, Marion Perron, Hélène Guichard, Violaine Jeammet – DOI : 10.1038/s42004-018-0034-y Thanks to the measurement of carbon-14 in lead carbonates for the first time ever, French researchers have been able to distinguish between chemicals of natural origin and chemicals More »
Lessons about a future warmer world using data from the past
Lessons about a future warmer world using data from the past
23-08-2018 - News scientifiques
Selected intervals in the past that were as warm or warmer than today can help us understand what the Earth may be like under future global warming. A latest assessment of past warm periods, published in Nature Geoscience by an international team of 59 scientists from 17 nations, shows that in response to the warming ecosystems and climate zones will spatially shift and on millennial time scales ice sheets will substantially shrink.   The study was an outcome of a workshop that More »

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