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File:N2O Protoxyde d'azote Nitrous Oxide évolution sur 260 ans selon AEE de 1750 à 2020.png

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Français : Evolution de la teneur en N20 (protoxyde d'azote) dans l'atmosphère sur 260 ans (rappel : le N20 est un gaz à effet de serre, et il détruit la couche d'ozone), d'après les données chiffrées retenues par 'Agence européenne de l'environnement :Unité : ppmv (parties par milliard en volume)
voir aussi sur Commons, une comparaison avec 3 autres gaz à effet de serre, montrant notamment une croissance aussi régulière que celle du CO2.
English: Evolution over time (260 years) of the contents of the Earth's atmosphere of N2O, a greenhouse gase ; Nitrous oxide occurs in small amounts in the atmosphere, but recently has been found to be a major scavenger of stratospheric ozone, with an impact comparable to that of CFCs. It is estimated that 30% of the N2O in the atmosphere is the result of human activity, chiefly agriculture. English name of the unit PPB = parts per billons (PPB)
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Author Lamiot

Data source : EEA : https://www.eea.europa.eu/data-and-maps/daviz/atmospheric-concentration-of-carbon-dioxide-4#tab-chart_5_filters=%7B%22rowFilters%22%3A%7B%7D%3B%22columnFilters%22%3A%7B%22pre_config_polutant%22%3A%5B%22CH4%20(ppb)%22%5D%7D%7D


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current14:42, 25 May 2019Thumbnail for version as of 14:42, 25 May 20193,349 × 2,661 (25.52 MB)Lamiot (talk | contribs)User created page with UploadWizard

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