The Knowledge Factory - Sur le même thème https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Launch-of-the--Trace-industrial-chair-for-the-monitoring-of-greenhouse-gas-emissions.aspx DRF english version en-US https://www.cea.fr/_layouts/15/images/i2i/icon-144x144-1033.png The Knowledge Factory - Sur le même thème https://www.cea.fr/drf/english Rapid screening of lithium-ion battery electrolytes by radiolysis https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/rapid-screening-of-lithium-ion-battery-electrolytes-by-radiolysis.aspx Researchers at Iramis, CEA-Liten and their partners in Nantes have shown that it is possible to quickly select the best electrolyte for a lithium-ion battery by gamma irradiation. The production of dihydrogen therefore provides a marker of the electrolyte’s performance. Lithium-ion batteries ; Energy storage ; Tools & research instruments general public ; Researchers ; Journalists Iramis Découvertes et avancées ; Scientific result Thu, 20 Oct 2022 10:00:00 GMT Shifting the acidity peak from winter to summer in the Arctic Ocean and the threat to its ecosystem https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/shifting-the-acidity-peak-from-winter-to-summer-in-the-arctic-ocean-and-the-threat-to-its-ecosystem.aspx A Franco-German study coordinated by the LSCE (CEA-CNRS-UVSQ) estimates that climate change could shift the peak in Arctic Ocean acidity from winter to summer, which would be disruptive to the ecosystem. Impact of climate change ; Oceanography ; Climate general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Wed, 05 Oct 2022 10:00:00 GMT Climate change could greatly diminish the effectiveness of biomass-based CO2 capture technologies https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/climate-change-could-greatly-diminish-the-effectiveness-of-biomass-based-co-capture-technologies.aspx An international collaboration involving the LSCE (CEA-CNRS-UVSQ) recommends the earliest possible deployment of these technologies on a large scale. If postponed to the latter half of this century, the available biomass production would be largely reduced by climate change, jeopardizing the goal of containing global warming to 2°C by 2100, and potentially leading to food shortages. Climate general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Thu, 08 Sep 2022 10:00:00 GMT Extreme fire events: how Australia’s forests are rising from the ashes https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/Extreme-fire-events-how-Australia’s-forests-are-rising-from-the-ashes.aspx Climate ; Environment Press release ; News Thu, 08 Sep 2022 10:00:00 GMT High-energy ions reduce plasma turbulence https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/high-energy-ions-reduce-plasma-turbulence.aspx Based on experiments conducted in the European tokamak JET, physicists from the IRFM and their partners demonstrated that the increased presence of highly energetic deuterium ions improves the stability of the fusion plasma. ITER’s plasma should benefit from a similar effect, thanks to the helium nuclei produced by fusion. Tokamak general public ; Journalists ; Researchers IRFM Découvertes et avancées ; Scientific result Thu, 21 Jul 2022 10:00:00 GMT Plutonium isotopy as a dating tool to reconstruct the recent history of land use in South America https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/plutonium-isotopy-as-a-dating-tool-to-reconstruct-the-recent-history-of-land-use-in-south-america.aspx A French-South American consortium led by the LSCE (CEA-CNRS-UVSQ) is working to explain the chronology and spatial distribution of radionuclides deposited in South America following atmospheric nuclear testing. Their research, based on measurements of plutonium isotopes in soil and sediment samples, will enable the precise reconstruction of the evolution in land use since the 1960s. Environment ; Agronomy ; Radioactivity ; Dating ; Impact of climate change general public ; Journalists ; Researchers LSCE Scientific result ; Découvertes et avancées Mon, 11 Jul 2022 10:00:00 GMT An artificial leaf that produces solar hydrogen https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/an-artificial-leaf-that-produces-solar-hydrogen.aspx Researchers from the CEA-Irig and their Vietnamese partners have developed an artificial leaf capable of converting solar energy into hydrogen, with a 2% conversion yield. This is a promising achievement towards the storage of renewable energy sources! Hydrogen ; Photovoltaic solar power ; Chemistry general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Fri, 17 Jun 2022 10:00:00 GMT The photosynthetic “booster” of microalgae revealed https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/the-photosynthetic-booster-of-microalgae-revealed.aspx An international collaboration involving researchers from the CEA-BIAM and the Carnegie Institution at Stanford University (USA) has just deciphered the mechanisms that microalgae use to capture atmospheric CO2 in a highly efficient manner. Vegetal physiology ; Microalgae ; Photosynthesis general public ; Journalists ; Researchers BIAM Découvertes et avancées ; Scientific result Thu, 28 Apr 2022 10:00:00 GMT The world’s largest CO2 emitters can now be identified by satellite https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/the-worlds-largest-emitters-can-now-be-identified-by-satellite.aspx For the first time ever, an international collaboration involving the LSCE (CEA-CNRS-UVSQ) is providing a global view of large CO2 plumes attributable to fossil fuels through satellite observations. Greenhouse effect ; Climate ; Satellites general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Tue, 19 Apr 2022 10:00:00 GMT 5,500 new RNA virus species identified in the global ocean https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/new-rna-virus-species-identified-in-the-global-ocean.aspx Using seawater samples collected during Tara Ocean expeditions and sequenced by the CEA-Jacob (Genoscope), an international team has identified 5,500 new species of RNA viruses, most of which belong to previously unknown phylogenetic branches. Metagenomics ; Oceanography ; Biodiversity general public ; Journalists ; Researchers Jacob Découvertes et avancées ; Scientific result Fri, 08 Apr 2022 10:00:00 GMT Using genomics to shed a light on climate https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/using-genomics-to-shed-a-light-on-climate.aspx Using metagenomic analysis, researchers from the CEA-Jacob/Genoscope and the LSCE (CEA-CNRS-UVSQ) have unveiled a “biogeography” of ocean plankton communities. Based on this work, they predict the evolution of their geographical distribution by 2100, with a reduction in the flux of organic carbon from surface waters to the depths. Climate ; Oceanography ; Carbon cycle ; Large-scale biology ; Metagenomics general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Tue, 05 Apr 2022 10:00:00 GMT Certain millet genotypes store more carbon in the soil than others https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/certain-millet-genotypes-store-more-carbon-in-the-soil-than-others.aspx Relying on isotopic measurements, a collaboration involving BIAM (CEA-CNRS-AMU) and the LSCE (CEA-CNRS-UVSQ) has succeeded in quantifying the amount of carbon released into the soil by the roots of millet after only a few weeks of growth. The researchers were thus able to identify millet genotypes (lines) that offer optimal carbon storage while preserving the older carbon stocks already present in the soil. Environment ; Carbon cycle ; Agronomy general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Tue, 15 Mar 2022 11:00:00 GMT Europe: a key dimension of the CEA's research strategy https://www.cea.fr/drf/english/Pages/News/Institutional-news/2022/Europe-important-arena-CEA-research.aspx Involvement in funding programmes, contribution to public policies through its scientific expertise, and development of major partnerships: the CEA has strengthened its European strategy over the past few years, making cooperation its watchword. Bertrand Bouchet, the CEA director of European Affairs, discusses the CEA’s position on Europe and the French presidency of the EU Council. Institutional ; Fundamental Research ; Energies ; New technologies Décryptage ; Europe ; Focus horizon 2020;EARTO;PFUE;Europe;EU; Mon, 28 Feb 2022 11:00:00 GMT Discovery of significant methane leaks linked to the oil and gas industry https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/discovery-of-significant-methane-leaks-linked-to-the-oil-and-gas-industry.aspx A new international study coordinated by the LSCE (CEA-CNRS-UVSQ) has revealed hundreds of very large methane leaks from oil and gas production facilities. This work draws on data collected by the European satellite Sentinel-5P. Greenhouse effect ; Impact of climate change general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Fri, 04 Feb 2022 11:00:00 GMT The effectiveness of bioenergy crops must be properly assessed https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/the-effectiveness-of-bioenergy-crops-must-be-properly-assessed.aspx According to a collaboration coordinated by the LSCE (CEA-CNRS-UVSQ), it is necessary to take into account the biophysical effects of bioenergy crops (including CO2 capture and sequestration) in order to properly assess their effectiveness in the fight against climate change. Bioenergy ; Climate ; Climatic models general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Tue, 21 Dec 2021 11:00:00 GMT A global compilation of marine and continental sediment cores dated by cesium-137 and lead-210 https://www.cea.fr/drf/english/Pages/News/Scientific-results/2022/a-global-compilation-of-marine-and-continental-sediment-cores-dated-by-cesium-and-lead.aspx The LSCE (CEA-CNRS-UVSQ) and the EDYTEM laboratory (CNRS - Université Savoie Mont Blanc - Ministère de la Culture) have established a comprehensive overview of cesium-137 fallout observed in sedimentary archives around the world. This database makes it possible to improve the dating of sedimentary cores. Environment ; Dating ; Climate general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Fri, 03 Dec 2021 11:00:00 GMT Biomass Carbon Monitor: a new tool for monitoring carbon exchanges between forests and the atmosphere around the world https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/biomass-carbon-monitor-a-new-tool-for-monitoring-carbon-exchanges-between-forests-and-the-atmosphere-around-the-world.aspx The firm Kayrros and its partners, the LSCE (CEA-CNRS-UVSQ) and INRAE, are launching the first measurement platform to monitor, on a regional scale, the capacity of forests to reduce atmospheric CO2. These open access data are based on spatial observations of biomass and capitalize on nearly 30 years of research. Carbon cycle ; Greenhouse effect ; Climate Companies ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Fri, 29 Oct 2021 10:00:00 GMT CO2 emissions have nearly returned to pre-pandemic levels https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/emissions-have-nearly-returned-to-pre-pandemic-levels.aspx Ahead of the opening of the 26th Conference of the Parties (COP 26) of the United Nations Framework Convention on Climate Change in Glasgow, Scotland, the latest estimates from Carbon Monitor – an international research initiative launched during the pandemic involving Tsinghua University (China), the LSCE (CEA-CNRS-UVSQ) and University of California, Irvine – show that global CO2 emissions at the end of September 2021 snapped back from 2020, and were only 1% lower than emissions at the same time in 2019. Carbon cycle ; Greenhouse effect ; Climate general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Wed, 27 Oct 2021 10:00:00 GMT Climate: N2O emissions from soil can be effectively reduced https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/climate--emissions-from-soil-can-be-effectively-reduced.aspx According to a Peking University study involving the LSCE (CEA-CNRS-UVSQ), there are “hot spots” of soil-based emissions of nitrous oxide (N2O), a very powerful greenhouse gas. Just by focusing on those soils that receive excessive nitrogen fertilizer deposits, it should be possible to reduce total nitrous oxide emissions from soils by nearly 20%. Climate ; Agronomy ; Climatic models general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Fri, 22 Oct 2021 10:00:00 GMT When reactor physics meets game theory https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/when-reactor-physics-meets-game-theory.aspx An international collaboration involving the CEA-Irfu and the CEA’s Energy Directorate has revealed a subtle neutron clustering mechanism by rigorously combining nuclear reactor experiments, modelling and simulations, all of which are extremely demanding. This result goes beyond the scope of just nuclear safety. Research reactor ; Nuclear safety ; Simulation & modelling general public ; Journalists ; Researchers Irfu Découvertes et avancées ; Scientific result Tue, 12 Oct 2021 10:00:00 GMT An enzymatic process for reducing CO2 https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/An-enzymatic-process-for-reducing-CO2.aspx Researchers from the CEA-Irig and their partners have developed a new enzymatic process for reducing CO2 and oxidizing CO. Efficient and able to operate under mild conditions, it could be used to purify gas from biomass pyrolysis in order to produce fuels or chemical precursors. Bioenergy ; Molecular mechanisms ; Chemistry general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Mon, 06 Sep 2021 10:00:00 GMT Quantum physics finds its way into the heart of flowers https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/quantum-physics-finds-its-way-into-the-heart-of-flowers.aspx Researchers from the CEA-Joliot (I2BC) and their partners have deciphered for the first time the quantum process of energy dissipation in aggregates of natural flower carotenoids. This fundamental biological mechanism could inspire the design of photovoltaic materials capable of supplying two electrons for every photon. Molecular mechanisms ; Vegetal physiology ; Quantum Physics ; Photovoltaic solar power general public ; Journalists ; Researchers Joliot Découvertes et avancées ; Scientific result Fri, 03 Sep 2021 10:00:00 GMT Heating of fusion plasmas: validation of an innovative antenna concept https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/heating-of-fusion-plasmas-validation-of-an-innovative-antenna-concept.aspx A mock-up of a high-power travelling wave antenna has been successfully tested at the IRFM. This new family of antennas operates at a lower voltage than current antennas, requires fewer adjustments, and can be deployed inside the tokamak. In short, it is better adapted to the hostile environment of a tokamak! Tools & research instruments ; Tokamak ; Fusion through magnetic containment general public ; Journalists ; Researchers Irfu Découvertes et avancées ; Scientific result Wed, 28 Jul 2021 10:00:00 GMT Climate change increased the likelihood of damaging frosts from the French April 2021 cold wave by about 60% https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/Climate-change-increased-the-likelihood-of-damaging-frosts-from-the-French-April-2021-cold-wave-by-about-60.aspx Climate ; Environment Press release ; News ; Focus Fri, 18 Jun 2021 10:00:00 GMT Peatlands drained for agriculture: estimating carbon emissions over the last millennium https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/Peatlands-drained-for-agriculture-estimating-carbon-emissions-over-the-last-millennium.aspx Environment ; Agronomy News ; Press release Tue, 15 Jun 2021 10:00:00 GMT Alpaga : the search for mountain snow microalgae https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/ALPALGA-the-search-for-mountain-snow-microalgae.aspx Environment ; Biodiversity ; Climate ; Impact of climate change News ; Press release ; Focus CEA;Mountain;Snow;UGA;CNRS;microalgue;inrae; Mon, 07 Jun 2021 10:00:00 GMT Phytoplankton: cellular architecture and energy metabolism https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/phytoplankton-cellular-architecture-and-energy-metabolism.aspx Drawing upon the 3D reconstruction of the cellular architecture of several phytoplankton families, researchers at the CEA-Irig have demonstrated that the physiological responses of these eukaryotes are associated with certain characteristics of their energy-producing organelles. This work thus provides new perspectives for the production of algal biomass, upstream of biotechnology applications. Cell and molecular imaging ; Microalgae ; Molecular mechanisms general public ; Journalists ; Researchers IRIG Scientific result ; Découvertes et avancées Thu, 03 Jun 2021 10:00:00 GMT More durable hybrid membranes for fuel cells https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/more-durable-hybrid-membranes-for-fuel-cells-.aspx Based in particular on multiscale morphological analyses, researchers at the CEA-Irig have developed a new generation of hybrid proton exchange membranes for fuel cells with promising performance and durability. Energy storage general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Tue, 01 Jun 2021 10:00:00 GMT Optimizing the cost of greenhouse gas mitigation by adjusting CO2 equivalents https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/optimizing-the-cost-of-greenhouse-gas-mitigation-by-adjusting-co-equivalents.aspx Different greenhouse gases do not have the same levels of persistence in the atmosphere. The calculation of their CO2 equivalent emissions therefore depends on the time periods in question. According to a collaboration led by the LSCE (CEA-CNRS-UVSQ), adjusting these durations will make it possible to better identify the most economically advantageous policies for reducing warming. Greenhouse effect ; Impact of climate change ; Climate general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Mon, 31 May 2021 10:00:00 GMT How do bio-inspired iron porphyrin catalysts work? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/how-do-bio-inspired-iron-porphyrin-catalysts-work.aspx Researchers from the CEA-Joliot and their partners have studied the efficiency of bio-inspired catalysts at reducing CO2 on the basis of their chemical structure. Their results provide an opportunity to develop catalysts that can be used on a large scale ... as well as reduce the accumulation of CO2 in the atmosphere! Bio-inspired catalysis ; Bioenergy general public ; Journalists ; Researchers Joliot Découvertes et avancées ; Scientific result Tue, 11 May 2021 10:00:00 GMT IAEA Conference Reviews Latest Advancements in Fusion https://www.cea.fr/drf/english/Pages/News/Institutional-news/2021/fec-2020-conference-fusion.aspx High-level experts from around the world will discuss progress towards achieving energy production from nuclear fusion at an International Atomic Energy Agency (IAEA) meeting next week. The 28th IAEA Fusion Energy Conference (FEC) will take place virtually from 10 to 15 May. It is organized by the IAEA and co-hosted by the ITER Organization and the Government of France through the French Alternative Energies and Atomic Energy Commission (CEA). Energies ; Nuclear energy ; Nuclear fusion ; Fusion through inertial containment ; Fusion through magnetic containment Companies ; general public ; Institutions ; Journalists ; Researchers Cadarache Articles & files ; News ; Highlight ; Event fusion;nuclear;AIEA;reactor;ITER; Fri, 07 May 2021 14:19:55 GMT Photocatalysis: imogolites facilitate charge separation https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/photocatalysis-imogolites-facilitate-charge-separation.aspx A team from the Iramis (CEA-CNRS) has shown that aluminosilicate nanotubes (imogolites) have an interesting potential for photocatalysis. These light-activated semiconductors could be functionalized to depollute water, in an environmentally friendly way. Remediation ; Green Chemistry ; Micro-nanotechnologies ; New industrial production processes general public ; Journalists ; Researchers Iramis Découvertes et avancées ; Scientific result Thu, 06 May 2021 10:00:00 GMT A deuterium “airbag” that protects against the potentially harmful effects of plasma instabilities https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/a-deuterium-airbag-that-protects-against-the-potentially-harmful-effects-of-plasma-instabilities.aspx A collaboration involving the CEA-IRFM, the European consortium EUROfusion, Iter and American partners has shown that it is possible to protect successfully the internal structures of a fusion reactor against damage caused by very energetic electrons that escape the fusion plasma following a major instability. Tokamak ; Fusion through magnetic containment general public ; Journalists ; Researchers IRFM Découvertes et avancées Fri, 30 Apr 2021 10:00:00 GMT The Brazilian Amazon rainforest has been losing its carbon stock over the past decade https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/the-brazilian-amazon-rainforest-has-been-losing-its-carbon-stock-over-the-past-decade.aspx According to a study involving scientists from the University of Oklahoma (USA), INRAE and the LSCE (CEA-CNRS-UVSQ), the Brazilian Amazon rainforest has released more carbon than it has absorbed over the last ten years. The cause: the degradation of the forest due to human activities and climate change. Carbon cycle ; Impact of climate change ; Climate ; Satellites general public ; Journalists ; Researchers LSCE Découvertes et avancées ; Scientific result Fri, 30 Apr 2021 10:00:00 GMT Green chemistry and biofuel: the mechanism of a key photoenzyme decrypted https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/Green-chemistry-and-biofuel-the-mechanism-of-a-key-photoenzyme-decrypted-.aspx Green Chemistry ; Chemistry ; 3rd generation biofuel ; Microalgae ; Synchrotron ; Laser ; Molecular mechanisms ; Bioenergy Press release Fri, 09 Apr 2021 10:00:00 GMT What are the contributions of different countries to climate change? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/what-are-the-contributions-of-different-countries-to-climate-change.aspx An international collaboration of climate researchers including the LSCE (CEA-CNRS-UVSQ) is using a model of the Earth System to determine the different regional contributions to global warming, as well as the individual factors that modify and amplify it, such as CO2 emissions, or, on the opposite, by temporarily attenuating it, such as aerosols. This model represents a valuable tool for implementing a responsible climate policy. Climate ; Climatic models general public ; Journalists ; Researchers Découvertes et avancées ; Scientific result Tue, 06 Apr 2021 10:00:00 GMT Arctic: Where do wet air masses come from in winter? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/arctic--where-do-wet-air-masses-come-from-in-winter.aspx Thanks to the first full-length record of the isotopic composition of water vapor from Svalbard (Norway), climatologists at LSCE (CEA-CNRS-UVSQ) documented the origin of winter air masses during peak moisture events. Climate ; Laser general public ; Journalists ; Researchers LSCE Scientific result Thu, 18 Mar 2021 11:00:00 GMT Tungsten and fusion plasma: Cohabitation without contamination! https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/tungsten-and-fusion-plasma--cohabitation-without-contamination-.aspx Physicists from the IRFM explain for the first time why, contrary to what is observed in most tokamaks, tungsten atoms from the inner walls do not accumulate in the WEST fusion plasma. ITER should also be free of this contamination, which degrades plasma performance. Tokamak ; Fusion through magnetic containment ; Tools & research instruments general public ; Journalists ; Researchers IRFM Scientific result Mon, 01 Mar 2021 11:00:00 GMT Chlordecone : When the herbicide releases the pesticide from the West Indian soil https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/chlordecone--when-the-herbicide-releases-the-pesticide-from-the-west-indian-soil.aspx According to a collaboration involving the LSCE (CEA-CNRS-UVSQ), chlordecone has reappeared massively in the French West Indies since the end of the 1990s - when the use of glyphosate was introduced - years after it was banned. Environment ; Agronomy ; Oceanography general public ; Journalists ; Researchers LSCE Scientific result Mon, 15 Feb 2021 11:00:00 GMT Mapping radioactive fallout from atmospheric nuclear tests to study soils in South America https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/mapping-radioactive-fallout-from-atmospheric-nuclear-tests-to-study-soils-in-south-america.aspx A collaboration between the LSCE (CEA-CNRS-UVSQ), the INRAE and Brazilian and Uruguayan universities established a first map of radioactive cesium deposits, following the nuclear tests of the 1960s. This map is a reference for sciences, which will allow the of soil erosion and redistribution in South America. Environment ; Agronomy ; Climate general public ; Journalists ; Researchers LSCE Scientific result Fri, 12 Feb 2021 11:00:00 GMT Accelerating green chemistry using artificial enzymes https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/accelerating-green-chemistry-using-artificial-enzymes.aspx Researchers at the CEA-Irig have introduced a new catalysis tool for green chemistry, by creating crystalline artificial enzymes whose solid form increases stability and allows more reaction cycles under harsher conditions. Green Chemistry ; Bacteria general public ; Journalists ; Researchers IRIG Découvertes et avancées ; Scientific result Tue, 09 Feb 2021 11:00:00 GMT When artificial enzymes accelerate green chemistry https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/When-artificial-enzymes-accelerate-green-chemistry.aspx Researchers at CEA- Irig have offered a new catalysis tool to green chemistry by creating artificial crystalline enzymes whose solid form increases stability and allows more cycles of reactions under harder conditions of use. Green Chemistry ; Bacteria Companies ; general public ; Institutions ; Journalists ; Researchers IRIG News ; Scientific result Tue, 09 Feb 2021 11:00:00 GMT Paleoclimatic simulations PMIP4: First analyses https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/paleoclimatic-simulations-pmip--first-analyses.aspx The PMIP (Paleoclimate Modelling Intercomparison Project) collaboration publishes the first results of its 4th "phase", for the study of the climates of the Middle Holocene (6,000 years ago) and the last interglacial (127,000 years ago). These periods are characterized by a greater than average seasonality in the northern hemisphere, which increases the amplitude of the seasonal cycle of boreal temperatures and strengthens the monsoons in the north. Paleoclimates ; Climatic models ; Climate general public ; Journalists ; Researchers LSCE Scientific result ; International Mon, 08 Feb 2021 11:00:00 GMT A direct way to transform CO2 into methane with green electricity https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/A-direct-way-to-transform-CO2-into-methane-with-green-electricity.aspx CEA-Irig researchers are identifying a catalyst to produce methane directly from CO2. Bio-inspired catalysis Companies ; general public ; Institutions ; Journalists ; Researchers IRIG News ; Scientific result Wed, 03 Feb 2021 11:00:00 GMT Corrosion models predict the behavior of radioactive waste stored at depth https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/corrosion-models-predict-the-behavior-of-radioactive-waste-stored-at-depth.aspx Using an approach combining experimentation, characterization and multi-scale modeling, researchers from Iramis and their partners from the Direction des énergies and Andra have studied the corrosion of glass and metal in particular conditions of radioactive waste storage. Radioactive waste ; Chemistry ; Materials ; Characterisation general public ; Journalists ; Researchers Iramis Scientific result Wed, 03 Feb 2021 11:00:00 GMT Geochemistry reveals ancient trade in cotton between Arabia and India https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/geochemistry-reveals-ancient-trade-in-cotton-between-arabia-and-india.aspx According to a study carried out by scientists from the LSCE (CEA-CNRS-UVSQ), CNRS and the Muséum national d’histoire naturelle, an isotopic analysis of strontium reveals the Indian origin of archaeological cottons dating from the 2nd-3rd centuries, in southeastern Arabia. Characterisation ; Chemistry ; Environment ; Science & society general public ; Journalists ; Researchers LSCE Scientific result Wed, 27 Jan 2021 11:00:00 GMT North-South Prize of the Council of Europe: the “Mediterranean IPCC” sounds the alarm! https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/north-south-prize-of-the-council-of-europe-the-mediterranean-ipcc-sounds-the-alarm.aspx Created in 2015, the independent network MedECC (Mediterranean Experts on Climate and Environmental Change) has published its first evaluation report, MAR1 (Mediterranean Assessment Report), accompanied by a summary for policy-makers. This publication earned the group the Council of Europe’s North-South 2020 Prize. Read on for a close-up on ‘Ecosystems’, a chapter from the report that features an LSCE researcher as “lead author”. Climate ; Impact of climate change ; Environment general public ; Journalists ; Researchers LSCE Prizes and awards ; Scientific result ; Europe Wed, 13 Jan 2021 11:00:00 GMT In-Pb anodes for use with Mg-ion batteries https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/in-pb-anodes-for-use-with-mg-ion-batteries.aspx A team from the CEA-Iramis has developed a new negative electrode material for Mg-ion batteries, based on the compound In-Pb. The synergistic action of indium and lead favors a high electrical capacity, to the detriment of the material’s reversibility, which needs to be further investigated. Batteries ; Chemistry ; Energy storage general public ; Journalists ; Researchers Iramis Scientific result Mon, 14 Dec 2020 11:00:00 GMT Ocean circulation would have contributed to the first colonization of North America https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/ocean-circulation-would-have-contributed-to-the-first-colonization-of-north-america.aspx According to an international study involving researchers from the LSCE (CEA-CNRS-UVSQ), a significant change in ocean currents in the North Pacific would have favored the first human migration from Asia to North America, at the end of the last ice age. Paleoclimates ; Climatic models ; Oceanography general public ; Journalists ; Researchers LSCE Scientific result Thu, 10 Dec 2020 11:00:00 GMT Discovery of a giant protein with a key role in the storage of energy-rich molecules in microalgae https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Discovery-of-a-giant-protein-with-a-key-role-in-the-storage-of-energy-rich-molecules-in-microalgae.aspx Researchers from the Biam (CEA) have discovered an essential role for a novel giant protein involved in the degradation of “lipid droplets”, which are the primary site of carbon and energy storage in certain microalgae. Microalgae Companies ; Institutions ; Journalists ; Researchers BIAM News ; Scientific result Thu, 03 Dec 2020 11:00:00 GMT The Notre-Dame fire: how has it contributed to lead pollution in the Parisian environment? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/the-notre-dame-fire-how-has-it-contributed-to-lead-pollution-in-the-parisian-environment.aspx The Métal du Chantier Notre-Dame group, which includes researchers from the LSCE (CEA-CNRS-UVSQ), has been using the isotopic signatures of lead to reveal that the Notre-Dame fire released this metal into the atmosphere. This event caused, on the very day, a sudden peak in pollution reaching up to one hundred times the normal value. Environment general public ; Journalists ; Researchers LSCE Scientific result Wed, 25 Nov 2020 11:00:00 GMT CO2 valorization: optimization of a bio-inspired catalyst https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/CO2-valorization-optimization-of-a-bio-inspired-catalyst.aspx Researchers at CEA-Joliot (I2BC) have optimized a bio-inspired CO2 reduction catalyst by modifying its 3D topology. Bio-inspired catalysis Companies ; general public ; Institutions ; Journalists ; Researchers Joliot News ; Scientific result Tue, 24 Nov 2020 11:00:00 GMT Modeling the city: an equation that settles a century-old controversy https://www.cea.fr/drf/english/Pages/News/Scientific-results/2021/modeling-the-city-an-equation-that-settles-a-century-old-controversy.aspx Researchers at the IPhT have proposed a new equation describing the evolution of the population of cities that for the first time embraces the observations of economists, geographers and historians. Theoretical physics ; Environment Researchers ; general public ; Journalists IPhT Scientific result Wed, 18 Nov 2020 11:00:00 GMT Nature-inspired solutions to sustainably increase crop yield https://www.cea.fr/drf/english/Pages/News/Institutional-news/2020/nature-inspired-solutions-to-sustainably-increase-crop-yield.aspx The recently launched EU-funded project GAIN4CROPS aims to improve photosynthetic efficiency of the oil crop sunflower using nature-inspired solutions and innovative breeding techniques. The 5-year 8M € project, funded under the EU Horizon 2020 Framework Programme, will pave the way for the introduction of strategic crops which might decrease the use of major resources in agriculture: land, nitrogen, and water. Agronomy ; Environment general public ; Researchers ; Journalists IRIG Europe Thu, 05 Nov 2020 11:00:00 GMT Investigation of a nano-architectured composite anode https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/investigation-of-a-nano-architectured-composite-anode.aspx In order to improve lithium-ion batteries, IRIG researchers are replacing the graphite of the negative electrode with silicon-based materials that can store much more lithium. These new nano-architected composite materials are made up of active domains of Si-amorphous and crystalline FeSi2 nanoparticles dispersed in a graphite matrix. They are studying the ageing phenomenon of these anodes capable of withstanding 700 cycles with a capacity of nearly 70%. Lithium-ion batteries general public ; Journalists ; Researchers IRIG Scientific result Mon, 02 Nov 2020 11:00:00 GMT SCARCE: 18 months of collaboration between a university in Singapore and CEA https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/scarce--months-of-collaboration-between-a-university-in-sSingapore-and-cea.aspx Inaugurated in March 2019, the joint laboratory between Nanyang Technological University (NTU) of Singapore and CEA displays its first series of publications co-signed by researchers from NTU, CEA-Iramis, ICSM and DES in Marcoule. Environment ; Energies ; New industrial production processes ; Electronics ; Materials general public ; Journalists ; Researchers DRF Scientific result ; International Mon, 28 Sep 2020 10:00:00 GMT Polar ice caps: how high will the sea level rise? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/polar-ice-caps-how-high-will-the-sea-level-rise.aspx Publication of a large set of interdisciplinary simulations to which researchers from LSCE (CEA-CNRS-UVSQ) have contributed offers an opportunity to assess the future impact of the melting of the polar ice caps. What are the trends and uncertainties? Impact of climate change ; Climatic models general public ; Journalists ; Researchers LSCE Scientific result ; International Fri, 18 Sep 2020 10:00:00 GMT The low value of climate sensitivity is revised upwards https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/the-low-value-of-climate-sensitivity-is-revised-upwards-.aspx According to an international collaboration involving the LSCE (CEA-CNRS-UVSQ), the doubling of atmospheric CO2 content compared to the pre-industrial era would “probably” warm the earth between 2.6°C to 3.9°C. This assessment – the best to date – is based on three independent data sources that do not use climate models. Climatic models ; Climate ; Impact of climate change general public ; Journalists ; Researchers LSCE Scientific result ; International Thu, 30 Jul 2020 10:00:00 GMT New reference map of radionuclide concentrations in soils of Western Europe https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/new-reference-map-of-radionuclide-concentrations-in-soils-of-Western-Europe.aspx An international consortium of scientists, including the Laboratoire des Sciences du Climat et de l'Environnement (LSCE - CEA/CNRS/UVSQ, Institut Pierre Simon Laplace, Université Paris-Saclay), used a new method to refine the map of caesium and plutonium radionuclide concentrations in soils in France and several neighbouring countries. Environment ; Radioactivity general public ; Journalists ; Researchers LSCE Scientific result Thu, 16 Jul 2020 10:00:00 GMT Methanol synthesis as part of the circular economy of carbon and silicon https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Methanol-synthesis-as-part-of-the-circular-economy-of-carbon-and-silicon.aspx Chemists at Iramis have proposed a new pathway for the catalytic synthesis of methanol from a formic acid derivative – a waste product of the silicon industry – whose by-products can be recycled. This is a high-yield, sustainable and environmentally friendly process that can be used for energy storage and fine chemistry! Chemistry ; Recovery of CO2 ; Innovation for industry general public ; Journalists ; Researchers Iramis Scientific result Wed, 15 Jul 2020 10:00:00 GMT A first step towards photochromic photovoltaic window panes https://www.cea.fr/drf/english/Pages/News/a-first-step-towards-photochromic-photovoltaic-window-panes.aspx A CEA team, in collaboration with the Pablo de Olavide University (Seville, Spain) and the Swiss company Solaronix, has invented a new family of photochromic dyes for photovoltaics. The result of this work paves the way for photovoltaic glasses whose transparency adapts to the luminosity, an interesting application in particular in the buildings and automotive sectors. Photovoltaic solar power general public ; Journalists ; Researchers IRIG Scientific result Mon, 15 Jun 2020 10:00:00 GMT Highly controlled radical chemistry https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Highly-controlled-radical-chemistry.aspx The CEA-Irig (IBS) has reported in Nature Catalysis a review on SAM proteins, a type of catalyst that produces highly reactive radical species. Chemistry ; Bio-inspired catalysis Companies ; Institutions ; Journalists ; Researchers IRIG Scientific result Wed, 03 Jun 2020 10:00:00 GMT Reducing cultivated land area by half in the interest of climate and biodiversity https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/reducing-cultivated-land-area-by-half-in-the-interest-of-climate-and-biodiversity.aspx An international collaboration involving the LSCE (CEA-CNRS-UVSQ) is proposing an agronomic scenario that is beneficial for the climate and biodiversity: cultivated areas reduced by half, without changing the input volumes, could be as productive as they are today if our practices are revised on a global scale. Agronomy ; Environment ; Climate ; Biodiversity general public ; Journalists ; Researchers LSCE Scientific result Tue, 05 May 2020 10:00:00 GMT Reducing mosquito populations https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Reducing-mosquito-populations.aspx Researchers at the CEA-Irig have elucidated the activation cascade of one of the four Bacillus thuringiensis toxins that specifically target mosquito larvae, in order to prevent them from becoming vectors of devastating diseases. Bacteria ; Environment ; Health & life sciences Companies ; general public ; Institutions ; Journalists ; Researchers IRIG Scientific result Tue, 07 Apr 2020 10:00:00 GMT Separation chemistry: a step toward greener metal recycling processes https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Separation-chemistry-a-step-toward-greener-metal-recycling-processes.aspx Fundamental Research ; Environment ; Dismantling ; Chemistry ; Materials News ; Press release ; Focus Tue, 25 Feb 2020 11:00:00 GMT Supercapacitors: carbon nanotube “mats” on aluminum foil https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/supercapacitors-carbon-nanotube-mats-on-aluminum-foil.aspx A new electrode material for supercapacitors has been developed by the Iramis and its partners: composed of carbon nanotube “mats” aligned on aluminum foil, it should significantly increase the amount of stored electrical power. This is an essential result for their industrialization by the startup company NawaTechnologies. Energy storage ; Innovation for industry general public ; Journalists ; Researchers Scientific result Thu, 20 Feb 2020 11:00:00 GMT Study of the possible toxicity of tungsten particles emitted by Iter https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/Study-of-the-possible-toxicity-of-tungsten-particles-emitted-by-Iter.aspx CEA researchers and their partners have synthesized and characterized tungsten particles similar to those to be produced by the Iter fusion reactor and have identified their cyto-genotoxic properties in lung models. Iter ; Toxicology Companies ; general public ; Institutions ; Researchers Joliot News ; Scientific result Wed, 29 Jan 2020 11:00:00 GMT Detecting trace amounts of uranium in water https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/detecting-trace-amounts-of-uranium-in-water.aspx The Captot heavy metal sensor, developed by the Iramis-LSI over the last ten years, could be used to detect traces of uranium in water. This would be a simple, rapid field solution to monitor the environment, for example during the cleanup and dismantling of nuclear facilities. Chemistry ; Environment ; Remediation ; Radioactivity ; Materials ; Technologies ; Innovation for industry general public ; Journalists ; Researchers Iramis Scientific result ; Industrial partnerships Thu, 09 Jan 2020 11:00:00 GMT Fukushima: lessons learnt from an extraordinary case of soil decontamination https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/Fukushima-lessons-learnt-from-an-extraordinary-case-soil-decontamination.aspx Following the accident at the Fukushima nuclear power plant, in 2011, the Japanese authorities decided to carry out major decontamination works in the affected area. The EGU is publishing a synthesis of approximately sixty scientific publications that together provide an overview of the decontamination strategies used and their effectiveness. Environment ; Radioactivity ; Nuclear energy Companies ; general public ; Institutions ; Journalists ; Researchers LSCE Scientific result Thu, 12 Dec 2019 11:00:00 GMT What will the wind do in the coming decades? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2020/What-will-the-wind-do-in-the-coming-decades.aspx According to an international study involving the LSCE, a reversal in the trend of terrestrial wind potential was observed in 2010. Its correlation with well-identified climatic mechanisms suggests the potential to optimize wind generation throughout the lifetime of facilities. Climate ; Renewable energies general public ; Journalists ; Researchers LSCE Scientific result ; International Tue, 19 Nov 2019 11:00:00 GMT The Tara Oceans mission reveals variations in plankton biodiversity and activity from the equator to the poles https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/The-Tara-Oceans-mission-reveals-variations-in-plankton-biodiversity-and-activity-from-the-equator-to-the-poles.aspx New results from the Tara Oceans expedition, led by a collaboration between the Tara Ocean Foundation and teams from the CNRS, EMBL, CEA, Sorbonne Université and Université Paris Science Lettres between 2009 and 2013 show that the diversity and functions of planktonic species in the global ocean change dramatically according to latitude. Biodiversity ; Genomics ; Environment ; Climate Companies ; general public ; Institutions ; Journalists ; Researchers Jacob Scientific result Mon, 18 Nov 2019 11:00:00 GMT Submarine symbiosis: microorganisms that never get lost https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/Submarine-symbiosis-microorganisms-that-never-get-lost--.aspx A team of CEA-Biam has uncovered a symbiotic behavior between magnetism-using bacteria and eukaryotic microorganisms. Biodiversity ; Bacteria ; Genomics Researchers ; Journalists ; general public BIAM En direct ; Scientific result Tue, 14 May 2019 10:00:00 GMT The Arctic Ocean, cradle of viral biodiversity https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/The-Arctic-Ocean,-cradle-of-viral-biodiversity.aspx Fundamental Research ; Cellular mechanisms ; Impact of climate change ; Climate ; Oceanography Press release ; Scientific result ; Focus Mon, 29 Apr 2019 10:00:00 GMT Southern CO2 versus Northern CO2: the Northern vegetation makes the difference https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/southern-co-versus-northern-co-the-northern-vegetation-makes-the-difference.aspx A team of international researchers coordinated by the LSCE has been able to retrace for the first time the evolution of the Northern Hemisphere land carbon sink over more than five decades, based on differential CO2 measurements collected since 1958 in both hemispheres. This is a precious indicator to understand how to encourage carbon sequestration in the ground and the biomass. Carbon cycle ; Climatic models ; Greenhouse effect ; Impact of climate change general public ; Journalists ; Researchers LSCE Scientific result Thu, 04 Apr 2019 10:00:00 GMT Irradiating electrodes for more powerful and long-lived Li-ion batteries https://www.cea.fr/drf/english/Pages/News/Scientific-results/2019/irradiating-electrodes-for-more-powerful-li-ion-batteries.aspx A large collaboration including the Iramis and two other CEA divisions (Basic Research Division and Nuclear Energy Division) has proposed to irradiate the graphite anodes of Li-ion batteries before their first use. This technique, similar to food or medicine processing, would lead to better results than the current industrial techniques for a potentially lower cost. Batteries ; Innovation for industry Journalists ; general public ; Researchers Iramis Scientific result Mon, 18 Feb 2019 11:00:00 GMT Fukushima: a French soil decontamination process experimented in Japan https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Fukushima-a-French-soil-decontamination-process-experimented-in-Japan.aspx The CEA, Orano and Veolia tested out a radioactive soil decontamination process in Japan between 13 and 17 November 2017. Radioactivity ; Environment Companies ; Partners ; Suppliers ; general public ; Institutions ; Journalists ; Researchers ; Higher education DRF Press release ; Focus Wed, 11 Apr 2018 10:00:00 GMT VERIFYing greenhouse gas emissions monitoring https://www.cea.fr/drf/english/Pages/News/Institutional-news/2018/VERIFYing-greenhouse-gas-emissions-monitoring.aspx The European project VERIFY, coordinated by the CEA, aims to provide the European Commission with a system to monitor greenhouse gas emissions declarations submitted by each country under the United Nations Framework Convention on climate change. Environment ; Climate ; Recovery of CO2 ; Carbon cycle ; Greenhouse effect ; Impact of climate change ; Science & society ; Tools & research instruments Journalists ; Researchers ; general public ; Companies LSCE News ; Newsletter ; CEA Research News ; European & international partnerships Greenhouse;energy union and climate;H2020;Paris clilmate change agreement;IPCC;greenhouse gas emissions; Tue, 10 Apr 2018 10:00:00 GMT Cultivated plants: moving towards sustainable resistance https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Cultivated-plants-moving-towards-sustainable-resistance.aspx Researchers from the Biam and Inra have shown how the modification of a protein in a plant leads to an effective resistance against potyviruses. Agronomy ; Vegetal physiology Researchers ; Journalists ; general public BIAM Scientific result Tue, 13 Mar 2018 11:00:00 GMT Nuclear fusion: French superconducting coils ready for the JT-60SA tokamak https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Nuclear-fusion-French-superconducting-coils-ready-for-the-JT-60SA-tokamak-.aspx Energies ; Nuclear energy ; Nuclear fusion ; Fusion through magnetic containment ; Tokamak ; Iter Press release ; Partnerships ; European & international partnerships ; International Mon, 05 Feb 2018 11:00:00 GMT BACCARA discovers the secret of capacity decay in Nano-silicon-based Lithium-ion Batteries https://www.cea.fr/drf/english/Pages/News/Institutional-news/2018/BACCARA-discovers-the-secret-of-capacity-decay--in-Nano-silicon-based-Lithium-ion-Batteries.aspx Scientists have performed a thorough analysis of promising silicon-based electrode technology with regard to Li-ion battery decay in the course of charge/discharge cycles. Oversaw by the CEA, this project was carried out through a balanced partnership between three academic and as many industry partners. Energies ; Energy efficiency ; Energy storage ; Batteries ; Lithium-ion batteries Journalists ; general public ; Researchers Grenoble News ; Newsletter ; CEA Research News ; European & international partnerships decay;H2020;batteries;Li-Ion;energy union and climate; Fri, 02 Feb 2018 17:00:00 GMT Ocean acidity: what impact will greater seasonal variations have? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Ocean-acidity-what-impact-will-greater-seasonal-variations-have.aspx According to an international collaboration involving the LSCE, seasonal variations in ocean acidity will be more pronounced at the end of the century than today and could even double. The seasonality of pH, until now considered favorable to the adaptation of marine organisms to global warming, could then prove to have a deleterious effect. This must now be taken into account in climate models. Impact of climate change Researchers ; general public ; Journalists LSCE Scientific result Fri, 02 Feb 2018 11:00:00 GMT New developments in plant resistance to drought https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/New-developments-in-plant-resistance-to-drought.aspx Plant stomata open or close in response to their needs, in addition to water stress or pathogen attack. A team from the Biam and its partners have demonstrated the role of the protein AQP in stomatal closure movements. Vegetal physiology ; Climate general public ; Journalists ; Researchers BIAM Scientific result Mon, 29 Jan 2018 11:00:00 GMT The first migration of the earliest modern humans out of Africa https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/The first-migration-of-the-earliest-modern-humans-out-of-Africa.aspx The African exodus of our species, Homo sapiens, has just been pushed back by at least 60,000 years in comparison to what we previously thought. This now places the date at around 177,000 - 194,000 years ago. This international study, which includes the LSCE, is based on the dating of the oldest modern human fossil found outside of Africa (Israel). Environment Researchers ; general public ; Journalists Scientific result Fri, 26 Jan 2018 11:00:00 GMT Uranium’s dual effect on plants https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Uraniums-dual-effect-on-plants.aspx A team from the BIG Institute has just demonstrated that uranium is not necessarily toxic to plants. Vegetal physiology ; Environment general public ; Researchers ; Journalists BIG Scientific result Fri, 26 Jan 2018 11:00:00 GMT An industrial chair for the monitoring of greenhouse gas emissions https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Launch-of-the--Trace-industrial-chair-for-the-monitoring-of-greenhouse-gas-emissions.aspx The Trace industrial chair aims to develop better monitoring methodologies of greenhouse gas emissions (carbon dioxide and methane) by satellite and with the help of new sensors deployed close to methane-emitting sites. Climate ; Energies ; Environment Institutions ; Journalists ; Researchers ; Partners ; Suppliers DRF Valorisation Press release ; Focus Thu, 18 Jan 2018 11:00:00 GMT Carbon storage in the ocean: diatoms are under surveillance! https://www.cea.fr/drf/english/Pages/News/Scientific-results/2018/Carbon-storage-in-the-ocean-diatoms-are-under-surveillance.aspx An in-depth study of microalgae with a siliceous cell wall (i.e. diatoms) emphasizes that their role in carbon sequestration in the ocean depths has been underestimated and may decline in the coming decades. This prognosis could be affected by the evolution of these species. Oceanography ; Climate Researchers ; general public ; Journalists LSCE Scientific result Mon, 15 Jan 2018 08:00:00 GMT Doping graphene nanosheets for on-chip supercapacitors https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/doping-graphene-nanosheets-for-on-chip-supercapacitors.aspx Three teams from the Inac have manufactured and characterized highly nitrogen-doped graphene nanosheets and tested them as supercapacitor electrodes. The performances obtained compare favorably with state of the art carbon electrodes. This promising technology has yet to be optimized for on-chip applications. Energy storage Researchers ; general public ; Journalists Inac Scientific result Wed, 13 Dec 2017 11:00:00 GMT Cement as a way to condition certain nuclear wastes? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/cement-as-a-way-to-condition-certain-nuclear-wastes.aspx Researchers from Iramis studied the irradiation resistance of several different cements, so as to incorporate nuclear waste from the CEA center of Marcoule into them. The result: these cements are resistant to the doses planned for this storage. Radioactive waste Researchers ; general public ; Journalists Iramis Scientific result Mon, 11 Dec 2017 11:00:00 GMT The corrosion of steel in a clay environment https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/the-corrosion-of-steal-in-a-clay-environment.aspx A team from Iramis analyzed the long-term corrosion of steel in a clay environment, under conditions of geological storage for nuclear waste. They observed that an iron oxide layer of sub-micron thickness appears on the steel surface, stabilizing the kinetics of the deterioration. This result enhances the corrosion models of the CEA and the Andra! Radioactive waste Researchers ; general public ; Journalists Iramis Scientific result Mon, 27 Nov 2017 11:00:00 GMT Global Warming, a New Threat to Air Quality in Europe https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/global-warming-a-new-threat-to-air-quality-in-europe.aspx Should countries reduce their greenhouse gas emissions to meet their December 2015 pledges at COP21, global temperatures would expected to rise by about 3°C by 2050 with respect to pre-industrial climate. For the first time, an international team of LSCE researchers has studied the impact of such a scenario on the air quality in Europe in 2050. Their results show that current efforts to reduce European anthropogenic emission reductions would probably be annihilated. Environment Researchers ; general public ; Journalists LSCE Scientific result ; European & international partnerships qualité de l'air;atmosphère;ozone;air;gaz à effet de serre;précurseurs d'ozone;COP 21; Mon, 20 Nov 2017 11:00:00 GMT A better understanding of heat deposits on Iter’s divertor https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/a-better-understanding-of-heat-deposits-on-iters-divertor.aspx A team from the IRFM performed digital 3D simulations of the turbulence of fusion plasma in a geometry identical to that of Iter, particularly in terms of the floor of the tokamak (divertor). These studies make it possible to consider ways to control the thermal flows that are received by the most exposed components. Tokamak Researchers ; general public ; Journalists IRFM Scientific result Mon, 13 Nov 2017 11:00:00 GMT When the Earth was a “snowball” https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/when-the-earth-was-a-snowball.aspx An international collaboration has published a synopsis of two climatic episodes during which the Earth was covered in ice and snow. This report takes stock of more than 35 years of scientific questioning regarding the functioning of a “snowball” Earth. Paleoclimates Researchers ; general public ; Journalists LSCE Highlight Mon, 13 Nov 2017 11:00:00 GMT Photosynthesis: oil in the gears https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/Photosynthesis-oil-in-the-gears.aspx Researchers from the Biam have discovered one of the "lubricants" of the complex gears involved in photosynthesis. Photosynthesis general public ; Researchers ; Journalists BIAM Scientific result Fri, 10 Nov 2017 11:00:00 GMT The 2017 Heat waves in Europe Are a Signature of Global Warming https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/the-2017-heat-waves-in-europe-are-a-signature-of-global-warming.aspx The heat waves experienced in Europe in 2017 were a result of global warming induced by human activities. Every summer, there is now a 10% chance of seeing a summer as hot as 2017, as shown by an international collaboration involving researchers from LSCE. Climate Researchers ; general public ; Journalists LSCE Scientific result Fri, 20 Oct 2017 10:00:00 GMT Ionic Liquid: Weak or Strong Electrolyte? https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/ionic-liquid-weak-or-strong-electrolyte.aspx A collaboration involving IRAMIS has characterized the paradoxical properties of ionic liquids— electrolytes which appear as either strong or weak depending on the scale that they are probed—and inferred a path to improve their electrical conductivity. Confined in carbon nanotubes, the electrolyte under scrutiny is very stable at high temperature and could be put to good use in batteries or fuel cells. Energy storage Researchers ; general public ; Journalists Iramis Scientific result Sun, 15 Oct 2017 10:00:00 GMT A Super-Resolution Thermal Diagnosis for WEST https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/a-super-resolution-thermal-diagnosis-for-west.aspx The WEST tokamak is now equipped with an infrared thermographic endoscope developed by IRFM. Its very high spatial resolution (100 microns) will enable researchers to study the thermal behavior of a critical component in ITER, the divertor, in great detail. Tokamak Researchers ; general public ; Journalists IRFM Scientific result Fri, 13 Oct 2017 10:00:00 GMT Deciphering the Fall Armyworm as it Invades Africa https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/deciphering-the-fall-armyworm-as-it-invades-africa.aspx In collaboration with the CEA François-Jacob Institute and INRIA, scientists from INRA have sequenced the genome of butterfly Spodoptera frugiperda. This common agricultural pest in the Americas is now moving towards the East. Genomics ; Biodiversity Journalists ; Researchers ; general public Fontenay-aux-Roses Scientific result Wed, 27 Sep 2017 10:00:00 GMT Microalgae: the Enzyme that Produces Hydrocarbons https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/microalgae-the-enzyme-that-produces-hydrocarbons.aspx In collaboration with peers from the Frédéric-Joliot Institute at CEA, researchers from BIAM have discovered an enzyme that allows microalgae to convert some of their fatty acids into hydrocarbons using light energy. Bioenergy ; Vegetal physiology ; Microalgae Researchers ; Journalists ; general public Joliot Highlight ; Scientific result Fri, 01 Sep 2017 10:00:00 GMT Earthworms Set the Tempo of the Last Glaciation https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/earthworms-set-the-tempo-of-the-last-glaciation.aspx Through the radiocarbon dating of calcite granules secreted by earthworms, a multidisciplinary team involving LSCE proposed the first precise chronological framework for all thawing phases in the last glacial period. Paleoclimates Researchers ; general public ; Journalists LSCE Scientific result loess;gleys;carotte glaciaire;événement de Dansgaard–Oeschger;datation au carbone 14;Paléoclimat;Ver de terre;sédiments marins;climatologie; Tue, 01 Aug 2017 10:00:00 GMT Using Carrots to Boost Solar Technologies https://www.cea.fr/drf/english/Pages/News/Scientific-results/2017/using-carrots-to-boost-solar-technologies.aspx Researchers from the CEA Frédéric-Joliot Institute have identified photosynthesis mechanisms that protect plants from excessive sunlight, with the idea of mimicking them to optimize solar technologies. Renewable energies ; Photosynthesis Researchers ; general public ; Journalists Joliot Scientific result Tue, 25 Jul 2017 10:00:00 GMT