{"id":225915,"date":"2022-10-10T11:14:03","date_gmt":"2022-10-10T02:14:03","guid":{"rendered":"https:\/\/dei.so\/?p=225915"},"modified":"2026-10-03T15:11:49","modified_gmt":"2026-10-03T06:11:49","slug":"life-cycle-assessment-a-getting-started-guide","status":"publish","type":"post","link":"https:\/\/dei.so\/fr\/life-cycle-assessment-a-getting-started-guide\/","title":{"rendered":"Analyse du cycle de vie\u00a0: guide pour d\u00e9buter"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"225915\" class=\"elementor elementor-225915\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9c91af4 e-flex e-con-boxed e-con e-parent\" data-id=\"9c91af4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c7c59ea elementor-widget elementor-widget-html\" data-id=\"c7c59ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"deiso-lca-g1\">\r\n<style>\r\n.deiso-lca-g1,.deiso-lca-g1 *,.deiso-lca-g1 *::before,.deiso-lca-g1 *::after{box-sizing:border-box;}\r\n.deiso-lca-g1{width:100%;padding:30px 0 !important;background:transparent !important;font-family:'Jost', system-ui, -apple-system, Segoe UI, sans-serif !important;}\r\n.deiso-lca-g1 .block-outer{max-width:1200px;margin:0 auto;padding:0 24px !important;}\r\n.deiso-lca-g1 .block-card{position:relative;background:#ffffff !important;border:1px solid rgba(26,26,26,0.10) !important;border-radius:22px;box-shadow:0 8px 20px rgba(26,26,26,0.04);overflow:hidden;padding:56px 56px 48px 56px !important;}\r\n.deiso-lca-g1 .block-card::before{content:\"\";position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,#63976B 0%,#2D8B8A 50%,#008194 100%);}\r\n.deiso-lca-g1 .block-section{padding:34px 0;border-bottom:1px solid rgba(26,26,26,0.08);}\r\n.deiso-lca-g1 .block-section:first-of-type{padding-top:8px;}\r\n.deiso-lca-g1 .block-section:last-of-type{border-bottom:none;padding-bottom:8px;}\r\n.deiso-lca-g1 .block-eyebrow{display:inline-block;background:rgba(0,129,148,0.07) !important;color:#006675 !important;border:1px solid rgba(0,129,148,0.20) !important;padding:5px 12px !important;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:14px;line-height:1.2;}\r\n.deiso-lca-g1 h2{font-family:'Jost', sans-serif !important;font-size:28px;line-height:1.3;letter-spacing:-0.3px;color:#1a1a1a !important;font-weight:600;margin:0 0 14px 0;}\r\n.deiso-lca-g1 p{font-size:17px;line-height:1.75;color:#475569 !important;font-weight:400;margin:0 0 16px 0;}\r\n.deiso-lca-g1 p:last-child{margin-bottom:0;}\r\n.deiso-lca-g1 p strong{color:#1a1a1a !important;font-weight:600;}\r\n.deiso-lca-g1 ul.page-list{list-style:none;padding:0 !important;margin:10px 0 16px 0;}\r\n.deiso-lca-g1 ul.page-list:last-child{margin-bottom:0;}\r\n.deiso-lca-g1 ul.page-list li{position:relative;padding:7px 0 7px 24px !important;font-size:17px;line-height:1.65;color:#475569 !important;}\r\n.deiso-lca-g1 ul.page-list li::before{content:\"\";position:absolute;left:2px;top:16px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#63976B,#008194);}\r\n@media (max-width:992px){.deiso-lca-g1 .block-card{padding:40px 32px !important;}.deiso-lca-g1 h2{font-size:24px;}.deiso-lca-g1 p{font-size:16.5px;}.deiso-lca-g1 ul.page-list li{font-size:16.5px;}}\r\n@media (max-width:767px){.deiso-lca-g1{padding:20px 0 !important;}.deiso-lca-g1 .block-outer{padding:0 18px !important;}.deiso-lca-g1 .block-card{padding:28px 22px !important;border-radius:18px;}.deiso-lca-g1 .block-section{padding:26px 0;}.deiso-lca-g1 .block-eyebrow{font-size:11.5px;padding:5px 11px !important;margin-bottom:12px;}.deiso-lca-g1 h2{font-size:21px;letter-spacing:-0.2px;}.deiso-lca-g1 p{font-size:15.8px;}.deiso-lca-g1 ul.page-list li{font-size:15.8px;padding-left:22px !important;}.deiso-lca-g1 ul.page-list li::before{width:7px;height:7px;top:15px;}}\r\n<\/style>\r\n\r\n<div class=\"block-outer\">\r\n<div class=\"block-card\">\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Contexte<\/span>\r\n    <h2>Analyse du cycle de vie : guide pour d\u00e9buter<\/h2>\r\n    <p>La durabilit\u00e9 fait largement d\u00e9bat ; sa mise en pratique est plus difficile. Apr\u00e8s une analyse, les d\u00e9clarations et les actions doivent suivre rapidement pour r\u00e9duire les dommages environnementaux et am\u00e9liorer les efforts d\u00e9j\u00e0 engag\u00e9s. Trois conditions doivent \u00eatre r\u00e9unies : une action doit pouvoir \u00eatre mise en \u0153uvre, les alternatives doivent \u00eatre hi\u00e9rarchis\u00e9es et la meilleure pratique doit \u00eatre choisie en tenant compte des co\u00fbts, des impacts environnementaux et des contraintes \u00e9conomiques.<\/p>\r\n    <p>Life Cycle Assessment (LCA) is the decision-making tool that helps select and optimize among the technology solutions or products available to meet that demand. The question is not how to solve a particular case of tight money &mdash; engineering already handles that. The question is how to set priorities, because no one can afford to fund everything. LCA shows which procedures most need to change.<\/p>\r\n    <p>Du point de vue de la durabilit\u00e9, LCA est importante car elle couvre l\u2019ensemble du cycle de vie d\u2019un produit ou d\u2019un service. Elle \u00e9vite qu\u2019une am\u00e9lioration locale ne d\u00e9place simplement la charge environnementale ailleurs. Les strat\u00e9gies d\u2019\u00e9valuation de la performance \u00e9cologique, de l\u2019utilisation des mati\u00e8res premi\u00e8res et des \u00e9missions de polluants d\u00e9pendent toutes de l\u2019objectif du syst\u00e8me ou de l\u2019\u00e9l\u00e9ment \u00e9tudi\u00e9 \u2014 ce qui n\u2019\u00e9tait pas le cas des \u00e9valuations environnementales ant\u00e9rieures.<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Concept<\/span>\r\n    <h2>Qu\u2019est-ce que l\u2019analyse du cycle de vie ?<\/h2>\r\n    <p>LCA est une m\u00e9thodologie permettant d\u2019\u00e9valuer les impacts environnementaux d\u2019un produit ou d\u2019un syst\u00e8me sur l\u2019ensemble de son cycle de vie, du berceau \u00e0 la tombe. Elle identifie et quantifie les effets \u00e9cologiques de ce syst\u00e8me afin de permettre aux d\u00e9cideurs de faire des choix plus durables. Elle s\u2019applique aussi bien aux voitures qu\u2019aux b\u00e2timents et aux syst\u00e8mes alimentaires, et prend en compte chaque \u00e9tape : l\u2019obtention des mati\u00e8res premi\u00e8res, la fabrication du produit, son utilisation et sa fin de vie.<\/p>\r\n    <p>LCA est un processus d\u00e9taill\u00e9 et souvent complexe, couramment utilis\u00e9 pour comparer les impacts environnementaux de produits et de services. Elle peut \u00eatre appliqu\u00e9e \u00e0 toutes les \u00e9chelles, du niveau local au niveau mondial. Plusieurs m\u00e9thodes et approches d\u2019\u00e9valuation existent ; l\u2019essentiel est de choisir la m\u00e9thode et la proc\u00e9dure adapt\u00e9es au produit ou au syst\u00e8me concern\u00e9.<\/p>\r\n    <p>LCA prend en compte :<\/p>\r\n    <ul class=\"page-list\">\r\n      <li>Extraction des mati\u00e8res premi\u00e8res<\/li>\r\n      <li>Fabrication du produit<\/li>\r\n      <li>Utilisation du produit<\/li>\r\n      <li>Transport et consommation d\u2019\u00e9nergie<\/li>\r\n      <li>Gestion des d\u00e9chets<\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Comment \u00e7a marche<\/span>\r\n    <h2>Comment r\u00e9aliser une LCA<\/h2>\r\n    <p>An LCA is performed by a trained analyst who collects data across all stages of a product&rsquo;s life cycle, enters that data into software, and models the system. It can be done by hand, but the calculation is slow; LCA software accelerates the process considerably.<\/p>\r\n    <p>L\u2019analyste examine ensuite l\u2019incidence de chaque \u00e9tape du cycle de vie sur l\u2019environnement et attribue \u00e0 chacune un poids, en fonction de la nature de l\u2019effet et de la contribution de cette \u00e9tape \u00e0 l\u2019impact global du produit. Le r\u00e9sultat est un profil environnemental du produit, accompagn\u00e9 de recommandations pour r\u00e9duire ses impacts.<\/p>\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45b058a elementor-widget elementor-widget-html\" data-id=\"45b058a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"deiso-lca-g2\">\r\n<style>\r\n.deiso-lca-g2,.deiso-lca-g2 *,.deiso-lca-g2 *::before,.deiso-lca-g2 *::after{box-sizing:border-box;}\r\n.deiso-lca-g2{width:100%;padding:30px 0 !important;background:transparent !important;font-family:'Jost', system-ui, -apple-system, Segoe UI, sans-serif !important;}\r\n.deiso-lca-g2 .block-outer{max-width:1200px;margin:0 auto;padding:0 24px !important;}\r\n.deiso-lca-g2 .block-card{position:relative;background:#ffffff !important;border:1px solid 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p{font-size:15.5px;}}\r\n<\/style>\r\n\r\n<div class=\"block-outer\">\r\n<div class=\"block-card\">\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Applications<\/span>\r\n    <h2>Utilisations de LCA<\/h2>\r\n    <ul class=\"page-list\">\r\n      <li>Identifier et r\u00e9duire les impacts environnementaux d\u2019une entreprise<\/li>\r\n      <li>Identifier des pratiques commerciales durables<\/li>\r\n      <li>D\u00e9velopper des technologies, produits et syst\u00e8mes plus respectueux de l\u2019environnement<\/li>\r\n      <li>Comprendre les impacts du changement climatique sur l\u2019environnement et la sant\u00e9, et \u00e9valuer les approches pour y r\u00e9pondre<\/li>\r\n      <li>Comparer des produits, des technologies ou des sc\u00e9narios futurs \u00e0 une r\u00e9f\u00e9rence \u2014 la situation actuelle, par exemple<\/li>\r\n      <li>Am\u00e9liorer la performance environnementale des technologies<\/li>\r\n      <li>R\u00e9pondre \u00e0 de grandes questions environnementales et de durabilit\u00e9, notamment en combinaison avec d\u2019autres m\u00e9thodes d\u2019\u00e9valuation<\/li>\r\n      <li>Identifier les points faibles des produits, technologies et services<\/li>\r\n      <li>Aider les consommateurs \u00e0 prendre des d\u00e9cisions \u00e9clair\u00e9es sur leurs achats<\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Types d\u2019\u00e9tudes<\/span>\r\n    <h2>Types d\u2019\u00e9tudes LCA<\/h2>\r\n    <div class=\"step-list\">\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">1<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>ACV de cadrage LCA<\/h3>\r\n          <p>Estimates how environmentally sound a product, service, or manufacturing process is. Drawing on a Life Cycle Inventory (LCI) database covering thousands of processes and sectors, it calculates several impacts &mdash; eutrophication, acidification, human toxicity, climate change &mdash; to give an overall picture of environmental load. It is useful for understanding whether choosing a particular product will improve or worsen a company&rsquo;s environmental profile.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">2<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>Produit LCA<\/h3>\r\n          <p>Examine la performance environnementale d\u2019un produit ou d\u2019une technologie, de sa conception \u00e0 son \u00e9limination, en couvrant chaque \u00e9tape du cycle de production depuis l\u2019extraction, y compris les fili\u00e8res de traitement en fin de vie et leurs cons\u00e9quences \u2014 pollution li\u00e9e \u00e0 la mise en d\u00e9charge, \u00e0 l\u2019incin\u00e9ration ou au traitement des d\u00e9chets dangereux.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">3<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>LCA comparative<\/h3>\r\n          <p>Prend en compte les impacts de chaque \u00e9tape pour deux alternatives ou plus. Le cas le plus courant consiste \u00e0 comparer un produit ou une technologie \u00e0 un autre, mais la m\u00eame approche s\u2019applique \u00e0 la comparaison de trajectoires ou de sc\u00e9narios de d\u00e9veloppement.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n    <\/div>\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa439e5 elementor-widget elementor-widget-html\" data-id=\"fa439e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"deiso-lca-g3\">\r\n<style>\r\n.deiso-lca-g3,.deiso-lca-g3 *,.deiso-lca-g3 *::before,.deiso-lca-g3 *::after{box-sizing:border-box;}\r\n.deiso-lca-g3{width:100%;padding:30px 0 !important;background:transparent !important;font-family:'Jost', system-ui, -apple-system, Segoe UI, sans-serif !important;}\r\n.deiso-lca-g3 .block-outer{max-width:1200px;margin:0 auto;padding:0 24px !important;}\r\n.deiso-lca-g3 .block-card{position:relative;background:#ffffff !important;border:1px solid rgba(26,26,26,0.10) !important;border-radius:22px;box-shadow:0 8px 20px rgba(26,26,26,0.04);overflow:hidden;padding:56px 56px 48px 56px !important;}\r\n.deiso-lca-g3 .block-card::before{content:\"\";position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,#63976B 0%,#2D8B8A 50%,#008194 100%);}\r\n.deiso-lca-g3 .block-section{padding:34px 0;border-bottom:1px solid rgba(26,26,26,0.08);}\r\n.deiso-lca-g3 .block-section:first-of-type{padding-top:8px;}\r\n.deiso-lca-g3 .block-section:last-of-type{border-bottom:none;padding-bottom:8px;}\r\n.deiso-lca-g3 .block-eyebrow{display:inline-block;background:rgba(0,129,148,0.07) !important;color:#006675 !important;border:1px solid rgba(0,129,148,0.20) !important;padding:5px 12px !important;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:14px;line-height:1.2;}\r\n.deiso-lca-g3 h2{font-family:'Jost', sans-serif !important;font-size:28px;line-height:1.3;letter-spacing:-0.3px;color:#1a1a1a !important;font-weight:600;margin:0 0 14px 0;}\r\n.deiso-lca-g3 p{font-size:17px;line-height:1.75;color:#475569 !important;font-weight:400;margin:0 0 16px 0;}\r\n.deiso-lca-g3 p:last-child{margin-bottom:0;}\r\n.deiso-lca-g3 p strong{color:#1a1a1a !important;font-weight:600;}\r\n.deiso-lca-g3 .callout-panel{background:#f7fafc !important;border:1px solid rgba(26,26,26,0.06) !important;border-left:4px solid #008194 !important;border-radius:18px;padding:22px 26px !important;margin:22px 0 0 0;}\r\n.deiso-lca-g3 .callout-panel p{color:#1a1a1a !important;font-weight:600;margin:0;}\r\n@media (max-width:992px){.deiso-lca-g3 .block-card{padding:40px 32px !important;}.deiso-lca-g3 h2{font-size:24px;}.deiso-lca-g3 p{font-size:16.5px;}}\r\n@media (max-width:767px){.deiso-lca-g3{padding:20px 0 !important;}.deiso-lca-g3 .block-outer{padding:0 18px !important;}.deiso-lca-g3 .block-card{padding:28px 22px !important;border-radius:18px;}.deiso-lca-g3 .block-section{padding:26px 0;}.deiso-lca-g3 .block-eyebrow{font-size:11.5px;padding:5px 11px !important;margin-bottom:12px;}.deiso-lca-g3 h2{font-size:21px;letter-spacing:-0.2px;}.deiso-lca-g3 p{font-size:15.8px;}.deiso-lca-g3 .callout-panel{padding:18px 20px !important;border-radius:14px;}}\r\n<\/style>\r\n\r\n<div class=\"block-outer\">\r\n<div class=\"block-card\">\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Comparison<\/span>\r\n    <h2>LCA par rapport \u00e0 l\u2019\u00e9tude d\u2019impact environnemental (EIA)<\/h2>\r\n    <p>La comparaison de LCA et de EIA \u00e0 leurs \u00e9chelles temporelles et g\u00e9ographiques respectives montre que ces deux outils sont compl\u00e9mentaires plut\u00f4t que concurrents. Une LCA \u00e9value un produit ou un service depuis l\u2019extraction (berceau) jusqu\u2019\u00e0 la fin de vie (tombe), g\u00e9n\u00e9ralement \u00e0 l\u2019\u00e9chelle mondiale.<\/p>\r\n    <p>Une EIA, \u00e0 l\u2019inverse, \u00e9tudie un lieu unique. Les \u00e9tudes d\u2019impact environnemental propres \u00e0 un site \u00e9valuent des variables sp\u00e9cifiques \u00e0 ce lieu \u2014 le nombre de personnes vivant \u00e0 proximit\u00e9, la distance entre le site et les zones r\u00e9sidentielles, ainsi que la pr\u00e9sence d\u2019\u00e9cosyst\u00e8mes particuliers.<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Amont<\/span>\r\n    <h2>Extraction des mati\u00e8res premi\u00e8res<\/h2>\r\n    <p>L\u2019extraction de ressources naturelles consiste \u00e0 pr\u00e9lever des mat\u00e9riaux de la terre afin de les fabriquer ou de les vendre comme mati\u00e8res premi\u00e8res \u2014 charbon, p\u00e9trole, gaz, m\u00e9taux. Ce processus peut \u00eatre dangereux et n\u00e9faste pour l\u2019environnement lorsqu\u2019il n\u2019est pas men\u00e9 de mani\u00e8re responsable.<\/p>\r\n    <p>Le p\u00e9trole et le gaz sont extraits par forage et pompage, selon des m\u00e9thodes conventionnelles ou par fracturation hydraulique, qui utilise de l\u2019eau sous haute pression pour fracturer la roche et lib\u00e9rer le combustible. L\u2019extraction du charbon implique d\u2019enlever les couches de terre situ\u00e9es au-dessus des gisements ou de forer le sol.<\/p>\r\n    <p>Les m\u00e9taux sont g\u00e9n\u00e9ralement extraits par exploitation mini\u00e8re : la terre est excav\u00e9e autour des gisements m\u00e9talliques, des outils sp\u00e9cialis\u00e9s extraient le m\u00e9tal, qui est ensuite nettoy\u00e9 et trait\u00e9 pour \u00e9liminer les impuret\u00e9s avant son transport vers une usine de fabrication ou une raffinerie.<\/p>\r\n    <p>L\u2019extraction des mati\u00e8res premi\u00e8res repr\u00e9sente une part importante de la charge environnementale totale d\u2019un syst\u00e8me ou d\u2019un produit ; cette phase doit donc \u00eatre trait\u00e9e avec soin dans toute LCA. Elle est \u00e9galement complexe sur le plan des donn\u00e9es : les fronti\u00e8res du syst\u00e8me \u00e9valu\u00e9, les sous-processus impliqu\u00e9s et l\u2019\u00e9nergie utilis\u00e9e doivent tous \u00eatre d\u00e9finis.<\/p>\r\n    <div class=\"callout-panel\">\r\n      <p>Cette phase correspond au \u201c\u00a0berceau\u00a0\u201d. L\u2019\u00e9limination finale d\u2019un produit fabriqu\u00e9 \u00e0 partir de ces mati\u00e8res premi\u00e8res correspond \u00e0 la \u201c\u00a0tombe\u00a0\u201d \u2014 \u00e9galement appel\u00e9e phase de fin de vie (EoL) ou de gestion des d\u00e9chets.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b29a76b elementor-widget elementor-widget-html\" data-id=\"b29a76b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"deiso-lca-g4\">\r\n<style>\r\n.deiso-lca-g4,.deiso-lca-g4 *,.deiso-lca-g4 *::before,.deiso-lca-g4 *::after{box-sizing:border-box;}\r\n.deiso-lca-g4{width:100%;padding:30px 0 !important;background:transparent !important;font-family:'Jost', system-ui, -apple-system, Segoe UI, sans-serif !important;}\r\n.deiso-lca-g4 .block-outer{max-width:1200px;margin:0 auto;padding:0 24px !important;}\r\n.deiso-lca-g4 .block-card{position:relative;background:#ffffff !important;border:1px solid rgba(26,26,26,0.10) !important;border-radius:22px;box-shadow:0 8px 20px rgba(26,26,26,0.04);overflow:hidden;padding:56px 56px 48px 56px !important;}\r\n.deiso-lca-g4 .block-card::before{content:\"\";position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,#63976B 0%,#2D8B8A 50%,#008194 100%);}\r\n.deiso-lca-g4 .block-section{padding:34px 0;border-bottom:1px solid rgba(26,26,26,0.08);}\r\n.deiso-lca-g4 .block-section:first-of-type{padding-top:8px;}\r\n.deiso-lca-g4 .block-section:last-of-type{border-bottom:none;padding-bottom:8px;}\r\n.deiso-lca-g4 .block-eyebrow{display:inline-block;background:rgba(0,129,148,0.07) !important;color:#006675 !important;border:1px solid rgba(0,129,148,0.20) !important;padding:5px 12px !important;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:14px;line-height:1.2;}\r\n.deiso-lca-g4 h2{font-family:'Jost', sans-serif !important;font-size:28px;line-height:1.3;letter-spacing:-0.3px;color:#1a1a1a !important;font-weight:600;margin:0 0 14px 0;}\r\n.deiso-lca-g4 h3{font-family:'Jost', sans-serif !important;font-size:19px;line-height:1.35;letter-spacing:-0.2px;color:#1a1a1a !important;font-weight:600;margin:26px 0 8px 0;}\r\n.deiso-lca-g4 p{font-size:17px;line-height:1.75;color:#475569 !important;font-weight:400;margin:0 0 16px 0;}\r\n.deiso-lca-g4 p:last-child{margin-bottom:0;}\r\n.deiso-lca-g4 p strong{color:#1a1a1a !important;font-weight:600;}\r\n.deiso-lca-g4 ul.page-list{list-style:none;padding:0 !important;margin:10px 0 16px 0;}\r\n.deiso-lca-g4 ul.page-list:last-child{margin-bottom:0;}\r\n.deiso-lca-g4 ul.page-list li{position:relative;padding:7px 0 7px 24px !important;font-size:17px;line-height:1.65;color:#475569 !important;}\r\n.deiso-lca-g4 ul.page-list li::before{content:\"\";position:absolute;left:2px;top:16px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#63976B,#008194);}\r\n.deiso-lca-g4 ul.page-list li strong{color:#1a1a1a !important;font-weight:600;}\r\n@media (max-width:992px){.deiso-lca-g4 .block-card{padding:40px 32px !important;}.deiso-lca-g4 h2{font-size:24px;}.deiso-lca-g4 h3{font-size:18.5px;}.deiso-lca-g4 p{font-size:16.5px;}.deiso-lca-g4 ul.page-list li{font-size:16.5px;}}\r\n@media (max-width:767px){.deiso-lca-g4{padding:20px 0 !important;}.deiso-lca-g4 .block-outer{padding:0 18px !important;}.deiso-lca-g4 .block-card{padding:28px 22px !important;border-radius:18px;}.deiso-lca-g4 .block-section{padding:26px 0;}.deiso-lca-g4 .block-eyebrow{font-size:11.5px;padding:5px 11px !important;margin-bottom:12px;}.deiso-lca-g4 h2{font-size:21px;letter-spacing:-0.2px;}.deiso-lca-g4 h3{font-size:17.5px;}.deiso-lca-g4 p{font-size:15.8px;}.deiso-lca-g4 ul.page-list li{font-size:15.8px;padding-left:22px !important;}.deiso-lca-g4 ul.page-list li::before{width:7px;height:7px;top:15px;}}\r\n<\/style>\r\n\r\n<div class=\"block-outer\">\r\n<div class=\"block-card\">\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Structure<\/span>\r\n    <h2>Les phases d\u2019une LCA<\/h2>\r\n    <p>Une LCA recense et analyse les effets environnementaux d\u2019un produit ou d\u2019un service sur l\u2019ensemble de son cycle de vie \u2014 approvisionnement en mati\u00e8res premi\u00e8res, fabrication du produit, emballage, distribution, utilisation et \u00e9limination. Cette m\u00e9thode est utilis\u00e9e depuis plus de trente ans, et l\u2019Organisation internationale de normalisation (ISO) a publi\u00e9 les normes qui l\u2019encadrent dans les ann\u00e9es 1990. Elle constitue aujourd\u2019hui une composante bien \u00e9tablie de l\u2019\u00e9valuation des produits et de l\u2019environnement, et peut \u00eatre appliqu\u00e9e \u00e0 toute \u00e9tape du d\u00e9veloppement d\u2019un produit.<\/p>\r\n    <p>LCA permet de\u00a0:<\/p>\r\n    <ul class=\"page-list\">\r\n      <li>\u00c9valuer les impacts environnementaux des produits et services<\/li>\r\n      <li>Identifier et mesurer leurs b\u00e9n\u00e9fices et co\u00fbts \u00e9cologiques<\/li>\r\n      <li>\u00c9valuer leur performance environnementale<\/li>\r\n      <li>Identifier leurs enjeux \u00e9cologiques significatifs<\/li>\r\n      <li>\u00c9clairer les d\u00e9cisions les concernant<\/li>\r\n    <\/ul>\r\n\r\n    <h3>Principales \u00e9tapes pour r\u00e9aliser une LCA<\/h3>\r\n    <ul class=\"page-list\">\r\n      <li>D\u00e9finir les fronti\u00e8res et le p\u00e9rim\u00e8tre de l\u2019\u00e9tude<\/li>\r\n      <li>S\u00e9lectionner le produit ou le service \u00e0 \u00e9valuer<\/li>\r\n      <li>Identifier et caract\u00e9riser les cat\u00e9gories d\u2019impact environnemental<\/li>\r\n      <li>\u00c9laborer une m\u00e9thode d\u2019estimation des impacts \u00e9cologiques<\/li>\r\n      <li>Estimer les impacts environnementaux<\/li>\r\n      <li>R\u00e9diger le rapport d\u2019LCA et communiquer les r\u00e9sultats<\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">\u00c9valuation des impacts<\/span>\r\n    <h2>\u00c9valuation des impacts du cycle de vie (LCIA)<\/h2>\r\n    <p>LCIA constitue une \u00e9tape essentielle de toute LCA. Des m\u00e9thodologies telles que CML, ReCiPe et TRACI ont \u00e9t\u00e9 d\u00e9velopp\u00e9es pour r\u00e9aliser cette \u00e9valuation et fonctionnent \u00e0 deux niveaux\u00a0: midpoint et endpoint.<\/p>\r\n    <p>La plupart des proc\u00e9dures LCIA fonctionnent au niveau midpoint. Certaines, dont ReCiPe, proposent une \u00e9valuation au niveau endpoint. \u00c0 ce niveau, des th\u00e9matiques environnementales telles que le potentiel de r\u00e9chauffement global (GWP), le potentiel de toxicit\u00e9 humaine (HTP), le potentiel d\u2019acidification (AP), l\u2019\u00e9puisement \u00e9nerg\u00e9tique, le potentiel d\u2019eutrophisation (EP) et l\u2019appauvrissement de la couche d\u2019ozone (OLD) sont regroup\u00e9es en cat\u00e9gories de dommages\u00a0: dommages \u00e0 la sant\u00e9, aux \u00e9cosyst\u00e8mes et aux ressources naturelles. Onze th\u00e9matiques environnementales ou plus sont ainsi ramen\u00e9es \u00e0 trois indicateurs \u00e9cologiques.<\/p>\r\n    <p>Le choix d\u2019une approche LCIA adapt\u00e9e est rarement simple. L\u2019examen de rapports sectoriels et d\u2019\u00e9tudes acad\u00e9miques \u00e9valu\u00e9es par les pairs constitue une solution concr\u00e8te pour surmonter cette difficult\u00e9.<\/p>\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e7e21af elementor-widget elementor-widget-html\" data-id=\"e7e21af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"deiso-lca-g5\">\r\n<style>\r\n.deiso-lca-g5,.deiso-lca-g5 *,.deiso-lca-g5 *::before,.deiso-lca-g5 *::after{box-sizing:border-box;}\r\n.deiso-lca-g5{width:100%;padding:30px 0 !important;background:transparent !important;font-family:'Jost', system-ui, -apple-system, Segoe UI, sans-serif !important;}\r\n.deiso-lca-g5 .block-outer{max-width:1200px;margin:0 auto;padding:0 24px !important;}\r\n.deiso-lca-g5 .block-card{position:relative;background:#ffffff !important;border:1px solid rgba(26,26,26,0.10) !important;border-radius:22px;box-shadow:0 8px 20px rgba(26,26,26,0.04);overflow:hidden;padding:56px 56px 48px 56px !important;}\r\n.deiso-lca-g5 .block-card::before{content:\"\";position:absolute;top:0;left:0;width:100%;height:6px;background:linear-gradient(90deg,#63976B 0%,#2D8B8A 50%,#008194 100%);}\r\n.deiso-lca-g5 .block-section{padding:34px 0;border-bottom:1px solid rgba(26,26,26,0.08);}\r\n.deiso-lca-g5 .block-section:first-of-type{padding-top:8px;}\r\n.deiso-lca-g5 .block-section:last-of-type{border-bottom:none;padding-bottom:8px;}\r\n.deiso-lca-g5 .block-eyebrow{display:inline-block;background:rgba(0,129,148,0.07) !important;color:#006675 !important;border:1px solid rgba(0,129,148,0.20) !important;padding:5px 12px !important;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:14px;line-height:1.2;}\r\n.deiso-lca-g5 h2{font-family:'Jost', sans-serif !important;font-size:28px;line-height:1.3;letter-spacing:-0.3px;color:#1a1a1a !important;font-weight:600;margin:0 0 14px 0;}\r\n.deiso-lca-g5 h3{font-family:'Jost', sans-serif !important;font-size:19px;line-height:1.35;letter-spacing:-0.2px;color:#1a1a1a !important;font-weight:600;margin:26px 0 8px 0;}\r\n.deiso-lca-g5 p{font-size:17px;line-height:1.75;color:#475569 !important;font-weight:400;margin:0 0 16px 0;}\r\n.deiso-lca-g5 p:last-child{margin-bottom:0;}\r\n.deiso-lca-g5 p strong{color:#1a1a1a !important;font-weight:600;}\r\n.deiso-lca-g5 ul.page-list{list-style:none;padding:0 !important;margin:10px 0 16px 0;}\r\n.deiso-lca-g5 ul.page-list:last-child{margin-bottom:0;}\r\n.deiso-lca-g5 ul.page-list li{position:relative;padding:7px 0 7px 24px !important;font-size:17px;line-height:1.65;color:#475569 !important;}\r\n.deiso-lca-g5 ul.page-list li::before{content:\"\";position:absolute;left:2px;top:16px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#63976B,#008194);}\r\n.deiso-lca-g5 ul.page-list li strong{color:#1a1a1a !important;font-weight:600;}\r\n@media (max-width:992px){.deiso-lca-g5 .block-card{padding:40px 32px !important;}.deiso-lca-g5 h2{font-size:24px;}.deiso-lca-g5 h3{font-size:18.5px;}.deiso-lca-g5 p{font-size:16.5px;}.deiso-lca-g5 ul.page-list li{font-size:16.5px;}}\r\n@media (max-width:767px){.deiso-lca-g5{padding:20px 0 !important;}.deiso-lca-g5 .block-outer{padding:0 18px !important;}.deiso-lca-g5 .block-card{padding:28px 22px !important;border-radius:18px;}.deiso-lca-g5 .block-section{padding:26px 0;}.deiso-lca-g5 .block-eyebrow{font-size:11.5px;padding:5px 11px !important;margin-bottom:12px;}.deiso-lca-g5 h2{font-size:21px;letter-spacing:-0.2px;}.deiso-lca-g5 h3{font-size:17.5px;}.deiso-lca-g5 p{font-size:15.8px;}.deiso-lca-g5 ul.page-list li{font-size:15.8px;padding-left:22px !important;}.deiso-lca-g5 ul.page-list li::before{width:7px;height:7px;top:15px;}}\r\n<\/style>\r\n\r\n<div class=\"block-outer\">\r\n<div class=\"block-card\">\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Cat\u00e9gories d\u2019impact<\/span>\r\n    <h2>Th\u00e9matiques environnementales<\/h2>\r\n    <p>Les th\u00e9matiques environnementales \u2014 \u00e9galement appel\u00e9es charges environnementales ou cat\u00e9gories d\u2019impact \u2014 correspondent aux r\u00e9sultats produits par la phase LCIA. Le changement climatique (GWP) est le plus connu\u00a0; HTP en est un autre. Les th\u00e9matiques les plus souvent \u00e9valu\u00e9es dans une LCA sont pr\u00e9sent\u00e9es ci-dessous.<\/p>\r\n    <ul class=\"page-list\">\r\n      <li><strong>\u00c9puisement abiotique des \u00e9l\u00e9ments (ADE)<\/strong> \u2014 mesur\u00e9 en kg \u00e9q. Sb, il \u00e9value l\u2019effet de l\u2019exploitation des ressources naturelles\u00a0: l\u2019\u00e9cart entre les ressources utilis\u00e9es sur l\u2019ensemble du cycle de vie et la consommation de ressources.<\/li>\r\n      <li><strong>\u00c9puisement abiotique des ressources fossiles (ADF)<\/strong> \u2014 exprim\u00e9 en MJ, il concerne l\u2019\u00e9puisement des ressources \u00e9nerg\u00e9tiques et non renouvelables telles que le gaz naturel.<\/li>\r\n      <li><strong>Potentiel d\u2019acidification (AP)<\/strong> \u2014 en kg \u00e9q. SO\u2082, la quantit\u00e9 d\u2019ions H\u207a g\u00e9n\u00e9r\u00e9e par kilogramme de mat\u00e9riau par rapport \u00e0 SO\u2082, repr\u00e9sentant l\u2019acidification maximale qu\u2019un mat\u00e9riau peut induire.<\/li>\r\n      <li><strong>Potentiel d\u2019eutrophisation (EP)<\/strong> \u2014 en kg \u00e9q. phosphate, le potentiel des engrais \u00e0 sur-fertiliser l\u2019eau et les sols.<\/li>\r\n      <li><strong>Potentiel d\u2019\u00e9cotoxicit\u00e9 aquatique en eau douce (FAETP)<\/strong> \u2014 en kg \u00e9q. DCB, il quantifie les dommages caus\u00e9s par les substances chimiques toxiques \u00e0 la vie aquatique.<\/li>\r\n      <li><strong>Potentiel de r\u00e9chauffement global (GWP)<\/strong> \u2014 en kg \u00e9q. CO\u2082, la mesure de r\u00e9f\u00e9rence du potentiel de changement climatique.<\/li>\r\n      <li><strong>Potentiel de toxicit\u00e9 humaine (HTP)<\/strong> \u2014 en kg \u00e9q. DCB, il refl\u00e8te les \u00e9missions de substances chimiques, telles que les m\u00e9taux lourds, auxquelles les personnes sont expos\u00e9es.<\/li>\r\n      <li><strong>Potentiel d\u2019\u00e9cotoxicit\u00e9 terrestre (TETP)<\/strong> \u2014 en kg \u00e9q. DCB, l\u2019impact des substances chimiques dangereuses sur les \u00e9cosyst\u00e8mes terrestres.<\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Donn\u00e9es<\/span>\r\n    <h2>Donn\u00e9es LCA<\/h2>\r\n    <p>Malgr\u00e9 le volume de donn\u00e9es secondaires disponibles, certains proc\u00e9d\u00e9s et mat\u00e9riaux sont tout simplement absents des bases de donn\u00e9es LCA. La collecte de donn\u00e9es est la partie la plus difficile de toute LCA. Selon le temps et les ressources disponibles, les donn\u00e9es manquantes peuvent \u00eatre collect\u00e9es directement ou estim\u00e9es de plusieurs fa\u00e7ons. Deux cat\u00e9gories m\u00e9ritent d\u2019\u00eatre distingu\u00e9es\u00a0:<\/p>\r\n    <ul class=\"page-list\">\r\n      <li><strong>Donn\u00e9es sp\u00e9cifiques<\/strong> \u2014 donn\u00e9es sp\u00e9cialis\u00e9es d\u00e9crivant le syst\u00e8me de production ou de produit sp\u00e9cifique mod\u00e9lis\u00e9.<\/li>\r\n      <li><strong>Donn\u00e9es d\u2019arri\u00e8re-plan<\/strong> \u2014 bases de donn\u00e9es de facteurs d\u2019\u00e9mission et litt\u00e9rature couvrant les mat\u00e9riaux g\u00e9n\u00e9riques, l\u2019\u00e9nergie, le transport et la gestion des d\u00e9chets.<\/li>\r\n    <\/ul>\r\n\r\n    <h3>Inventaire du cycle de vie (LCI)<\/h3>\r\n    <p>Les bases de donn\u00e9es LCI de facteurs d\u2019\u00e9mission repr\u00e9sentent l\u2019impact environnemental des produits et mat\u00e9riaux par unit\u00e9 fonctionnelle sur l\u2019ensemble de leur cycle de vie. Elles regroupent des informations sur les mat\u00e9riaux et l\u2019\u00e9nergie utilis\u00e9s lors de la production, ainsi que sur les d\u00e9chets g\u00e9n\u00e9r\u00e9s lors de l\u2019utilisation et de la fin de vie, ce qui permet d\u2019\u00e9valuer les impacts \u00e0 chaque \u00e9tape, de l\u2019extraction des mati\u00e8res premi\u00e8res \u00e0 l\u2019\u00e9limination finale. Elles facilitent \u00e9galement la comparaison entre les produits et mat\u00e9riaux et permettent d\u2019identifier les leviers de r\u00e9duction des impacts.<\/p>\r\n\r\n    <h3>Exemples de bases de donn\u00e9es LCI<\/h3>\r\n    <ul class=\"page-list\">\r\n      <li><strong>ecoinvent<\/strong> \u2014 la principale base de donn\u00e9es LCI mondiale, couvrant largement les proc\u00e9d\u00e9s propres \u00e0 chaque pays industrialis\u00e9, ainsi que de nombreux proc\u00e9d\u00e9s class\u00e9s comme China-Data ou Global Data. Elle fournit des donn\u00e9es d\u00e9taill\u00e9es sur des milliers de proc\u00e9d\u00e9s.<\/li>\r\n      <li><strong>IDEA (Base de donn\u00e9es d\u2019inventaire pour l\u2019analyse environnementale)<\/strong> &mdash; the leading LCA database in Japan, covering most of the country&rsquo;s economic production activities. It holds around 3,800 processes based on the Japan Standard Commodity Classification, and is now accessible through SimaPro and openLCA.<\/li>\r\n    <\/ul>\r\n    <p>IDEA holds roughly 3,800 processes; ecoinvent holds around 18,000 activities and is updated frequently with new approaches. Note that widely used LCI databases such as ecoinvent and GaBi Professional, along with their extensions, include country-specific datasets covering Japan among others.<\/p>\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9af0411 elementor-widget elementor-widget-html\" data-id=\"9af0411\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"deiso-lca-g6\">\r\n<style>\r\n.deiso-lca-g6,.deiso-lca-g6 *,.deiso-lca-g6 *::before,.deiso-lca-g6 *::after{box-sizing:border-box;}\r\n.deiso-lca-g6{width:100%;padding:30px 0 !important;background:transparent !important;font-family:'Jost', system-ui, -apple-system, Segoe UI, sans-serif !important;}\r\n.deiso-lca-g6 .block-outer{max-width:1200px;margin:0 auto;padding:0 24px !important;}\r\n.deiso-lca-g6 .block-card{position:relative;background:#ffffff 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class=\"step-list\">\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">1<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>D\u00e9finition des objectifs et du champ de l\u2019\u00e9tude<\/h3>\r\n          <p>L\u2019\u00e9tude est d\u00e9finie ici, avec ses objectifs et son p\u00e9rim\u00e8tre. Plusieurs aspects essentiels sont fix\u00e9s \u00e0 ce stade : la fonction du syst\u00e8me, l\u2019unit\u00e9 fonctionnelle sur laquelle reposeront les \u00e9missions et les pr\u00e9l\u00e8vements, ainsi que les fronti\u00e8res du syst\u00e8me. Le sc\u00e9nario de r\u00e9f\u00e9rence comme les alternatives sont \u00e9tablis.<\/p>\r\n          <p>L\u2019unit\u00e9 fonctionnelle est la r\u00e9f\u00e9rence \u2014 par exemple, la production de 1\u00a0kg de plastique \u2014 utilis\u00e9e pour comparer une alternative selon cette m\u00eame r\u00e9f\u00e9rence de 1\u00a0kg. La multiplication de l\u2019impact unitaire par la production totale permet d\u2019obtenir l\u2019impact environnemental net de la production quotidienne, mensuelle ou annuelle.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">2<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>Analyse de l\u2019inventaire<\/h3>\r\n          <p>Les \u00e9missions dans l\u2019air, l\u2019eau et les sols, ainsi que les pr\u00e9l\u00e8vements de mati\u00e8res premi\u00e8res renouvelables et non renouvelables, sont quantifi\u00e9s. Les ressources n\u00e9cessaires au fonctionnement du syst\u00e8me sont \u00e9galement d\u00e9termin\u00e9es \u00e0 ce stade.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">3<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>\u00c9valuation des impacts<\/h3>\r\n          <p>Cette phase d\u00e9termine l\u2019importance des impacts identifi\u00e9s dans l\u2019inventaire. Ses \u00e9tapes sont les suivantes\u00a0:<\/p>\r\n          <ul class=\"page-list\">\r\n            <li>D\u00e9finition des cat\u00e9gories d\u2019impact, des indicateurs de cat\u00e9gorie et des facteurs de caract\u00e9risation<\/li>\r\n            <li>\u00c9valuation des cons\u00e9quences environnementales \u2014 r\u00e9chauffement climatique, toxicit\u00e9 humaine, \u00e9cotoxicit\u00e9, utilisation des ressources et autres<\/li>\r\n            <li>Classification des \u00e9missions contribuant \u00e0 chaque cat\u00e9gorie d\u2019impact, avec pond\u00e9ration de la caract\u00e9risation au point final et agr\u00e9gation selon leurs valeurs au point m\u00e9dian<\/li>\r\n            <li>Caract\u00e9risation des dommages, regroupant les cat\u00e9gories d\u2019impact en cat\u00e9gories de dommages \u2014 sant\u00e9 humaine, qualit\u00e9 des \u00e9cosyst\u00e8mes, ressources<\/li>\r\n            <li>Une \u00e9tape facultative de normalisation, pr\u00e9sentant la contribution du produit \u00e9tudi\u00e9 comme une fraction de l\u2019impact global dans une cat\u00e9gorie donn\u00e9e<\/li>\r\n            <li>Une pond\u00e9ration facultative fond\u00e9e sur des crit\u00e8res sociaux, tenant compte de l\u2019importance relative ou des dommages<\/li>\r\n          <\/ul>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"step-card\">\r\n        <span class=\"step-badge\">4<\/span>\r\n        <div class=\"step-body\">\r\n          <h3>Interpr\u00e9tation<\/h3>\r\n          <p>Les r\u00e9sultats sont interpr\u00e9t\u00e9s et les incertitudes \u00e9valu\u00e9es. L\u2019analyse critique teste l\u2019effet des fronti\u00e8res et des hypoth\u00e8ses retenues, au moyen d\u2019\u00e9tudes de sensibilit\u00e9 et d\u2019analyses d\u2019incertitude \u2014 simulation de Monte-Carlo \u2014 afin d\u2019identifier les principaux param\u00e8tres et les pistes d\u2019am\u00e9lioration. Les cons\u00e9quences environnementales peuvent enfin \u00eatre mises en regard des cons\u00e9quences \u00e9conomiques ou soci\u00e9tales.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n    <\/div>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">P\u00e9rim\u00e8tres<\/span>\r\n    <h2>Niveaux d\u2019\u00e9valuation<\/h2>\r\n    <p>Au sein des fronti\u00e8res d\u2019un syst\u00e8me et du jeu de donn\u00e9es d\u2019un processus donn\u00e9, il existe plusieurs niveaux d\u2019\u00e9valuation. La couverture du jeu de donn\u00e9es d\u00e9pend de son type \u2014 processus unitaire gate-to-gate, processus agr\u00e9g\u00e9 ou processus agr\u00e9g\u00e9 du berceau \u00e0 la tombe.<\/p>\r\n    <ul class=\"page-list\">\r\n      <li><strong>Gate to gate<\/strong> \u2014 l\u2019ensemble des op\u00e9rations li\u00e9es \u00e0 l\u2019entreprise ou au site, depuis l\u2019acquisition ou l\u2019approvisionnement des mati\u00e8res jusqu\u2019\u00e0 chaque processus de fabrication sur site, et jusqu\u2019aux derni\u00e8res \u00e9tapes avant la sortie du site.<\/li>\r\n      <li><strong>Du berceau \u00e0 la porte<\/strong> \u2014 l\u2019ensemble des op\u00e9rations depuis l\u2019extraction des ressources jusqu\u2019aux derni\u00e8res \u00e9tapes avant la sortie du site, y compris toute la production d\u2019\u00e9nergie et de pr\u00e9curseurs ainsi que la production sur site.<\/li>\r\n      <li><strong>De la porte \u00e0 la tombe<\/strong> \u2014 \u00e9tend les op\u00e9rations depuis la porte jusqu\u2019\u00e0 l\u2019\u00e9limination finale.<\/li>\r\n      <li><strong>Du berceau \u00e0 la tombe<\/strong> \u2014 l\u2019ensemble du cycle de vie : du berceau \u00e0 la porte, \u00e9tendu \u00e0 l\u2019utilisation, \u00e0 la maintenance et \u00e0 la fin de vie du produit, en couvrant l\u2019\u00e9limination, le recyclage et le r\u00e9emploi.<\/li>\r\n    <\/ul>\r\n  <\/div>\r\n\r\n  <div class=\"block-section\">\r\n    <span class=\"block-eyebrow\">Conclusion<\/span>\r\n    <h2>Conclusion<\/h2>\r\n    <p>LCA est un outil pratique pour d\u00e9terminer l\u2019impact des produits sur l\u2019environnement et identifier les leviers de r\u00e9duction. Il aide les entreprises \u00e0 r\u00e9duire l\u2019empreinte environnementale de leur production et \u00e0 prendre de meilleures d\u00e9cisions sur la conception des produits et le choix des mat\u00e9riaux.<\/p>\r\n    <p>DEISO runs LCA professional training programs at basic, intermediate, advanced, and expert levels, remotely or in person.<\/p>\r\n    <div class=\"block-actions\">\r\n      <a class=\"block-btn\" href=\"https:\/\/dei.so\/fr\/deiso-life-cycle-assessment-lca-professional-training-programs\/\">D\u00e9couvrir les formations LCA \u2192<\/a>\r\n    <\/div>\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e8172b8 elementor-widget elementor-widget-html\" data-id=\"e8172b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div 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p{font-size:15.8px;}\r\n  .deiso-lca-hub-block .card-grid{grid-template-columns:1fr;gap:16px;}\r\n  .deiso-lca-hub-block .grid-card{padding:26px 22px 24px 22px !important;border-radius:18px;}\r\n  .deiso-lca-hub-block .grid-card:hover{transform:none;}\r\n  .deiso-lca-hub-block .card-icon{width:44px;height:44px;border-radius:12px;}\r\n  .deiso-lca-hub-block .card-icon svg{width:22px;height:22px;}\r\n  .deiso-lca-hub-block h3{font-size:17.5px;}\r\n  .deiso-lca-hub-block .grid-card p{font-size:15.5px;}\r\n  .deiso-lca-hub-block a.card-btn{padding:13px 20px !important;}\r\n}\r\n<\/style>\r\n\r\n<div class=\"block-outer\">\r\n\r\n  <div class=\"block-head\">\r\n    <span class=\"block-eyebrow\">LCA \u00e9cosyst\u00e8me<\/span>\r\n    <h2>D\u00e9couvrez l\u2019\u00e9cosyst\u00e8me DEISO d\u2019analyse du cycle de vie (LCA)<\/h2>\r\n    <p>L\u2019\u00e9cosyst\u00e8me int\u00e9gr\u00e9 de DEISO LCA couvre la r\u00e9alisation de projets, la revue ind\u00e9pendante, le conseil, la formation professionnelle et les syst\u00e8mes techniques con\u00e7us pour soutenir des d\u00e9marches de durabilit\u00e9 de haute qualit\u00e9, align\u00e9es sur ISO.<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"card-grid\">\r\n\r\n    <!-- 1 \u2014 Execution -->\r\n    <div class=\"grid-card\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M3 20h18\"><\/path><path d=\"M6 16l4-5 3 3 5-7\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>LCA r\u00e9alisation de projets<\/h3>\r\n      <\/div>\r\n      <p>R\u00e9alisation d\u2019ACV de bout en bout pour les produits, les syst\u00e8mes et les cha\u00eenes de valeur, avec des flux de travail structur\u00e9s et une haute qualit\u00e9 technique.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/deiso-enterprise-life-cycle-assessment-lca-services\/\">D\u00e9couvrir le service \u2192<\/a>\r\n    <\/div>\r\n\r\n    <!-- 2 \u2014 Critical review -->\r\n    <div class=\"grid-card\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 3l7 4v5c0 5-3.5 7.5-7 9-3.5-1.5-7-4-7-9V7l7-4z\"><\/path><path d=\"M9 12l2 2 4-4\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>Revue critique LCA (ISO 14040\/44)<\/h3>\r\n      <\/div>\r\n      <p>Revue technique ind\u00e9pendante confirmant la coh\u00e9rence m\u00e9thodologique, la transparence et l\u2019alignement sur ISO.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/lca-critical-review\/\">D\u00e9couvrir le service \u2192<\/a>\r\n    <\/div>\r\n\r\n    <!-- 3 \u2014 Advisory -->\r\n    <div class=\"grid-card\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M12 20v-8\"><\/path><path d=\"M8 16l4 4 4-4\"><\/path><path d=\"M5 6h14\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>Conseil strat\u00e9gique LCA de haut niveau<\/h3>\r\n      <\/div>\r\n      <p>Conseil de niveau expert pour la conception des \u00e9tudes, la m\u00e9thodologie et la prise de d\u00e9cision dans les projets LCA et EPD.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/lca-strategic-advisory\/\">D\u00e9couvrir le conseil \u2192<\/a>\r\n    <\/div>\r\n\r\n    <!-- 4 \u2014 Professional training -->\r\n    <div class=\"grid-card\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M4 19.5A2.5 2.5 0 0 1 6.5 17H20\"><\/path><path d=\"M6.5 3H20v18H6.5A2.5 2.5 0 0 1 4 18.5v-13A2.5 2.5 0 0 1 6.5 3z\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>Formation professionnelle LCA<\/h3>\r\n      <\/div>\r\n      <p>Formation professionnelle structur\u00e9e permettant aux \u00e9quipes de d\u00e9velopper de solides comp\u00e9tences en LCA, conformes aux normes ISO.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/deiso-life-cycle-assessment-lca-professional-training-programs\/\">D\u00e9couvrir la formation \u2192<\/a>\r\n    <\/div>\r\n\r\n    <!-- 5 \u2014 Software training -->\r\n    <div class=\"grid-card\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><rect x=\"3\" y=\"4\" width=\"18\" height=\"14\" rx=\"2\"><\/rect><path d=\"M8 9h8\"><\/path><path d=\"M8 13h5\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>Formation aux logiciels LCA (openLCA, GaBi, SimaPro)<\/h3>\r\n      <\/div>\r\n      <p>Programmes de formation pratiques, centr\u00e9s sur les logiciels, con\u00e7us pour les professionnels utilisant openLCA, GaBi et SimaPro.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/training-finder\/?_training_programs=lca-software-training\">Explorer les programmes \u2192<\/a>\r\n    <\/div>\r\n\r\n    <!-- 6 \u2014 Data system -->\r\n    <div class=\"grid-card\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M4 6h16\"><\/path><path d=\"M4 12h10\"><\/path><path d=\"M4 18h16\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>Syst\u00e8me de collecte de donn\u00e9es LCA<\/h3>\r\n      <\/div>\r\n      <p>Cadre structur\u00e9 de collecte de donn\u00e9es pour am\u00e9liorer la coh\u00e9rence, r\u00e9duire les erreurs et acc\u00e9l\u00e9rer la r\u00e9alisation des projets LCA.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/deiso-lca-data-collection-template\/\">T\u00e9l\u00e9charger le syst\u00e8me \u2192<\/a>\r\n    <\/div>\r\n\r\n    <!-- 7 \u2014 Quotation -->\r\n    <div class=\"grid-card span-full\">\r\n      <div class=\"card-top\">\r\n        <span class=\"card-icon\" aria-hidden=\"true\">\r\n          <svg viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z\"><\/path><path d=\"M8 9h8\"><\/path><path d=\"M8 13h6\"><\/path><\/svg>\r\n        <\/span>\r\n        <h3>Demander un devis<\/h3>\r\n      <\/div>\r\n      <p>Demandez un devis personnalis\u00e9 adapt\u00e9 \u00e0 vos besoins en LCA, en revue ou en formation.<\/p>\r\n      <a class=\"card-btn\" href=\"https:\/\/dei.so\/fr\/contact-form\/\">Demander un devis \u2192<\/a>\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/div>\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Background Life cycle assessment: a getting started guide Sustainability is widely debated; putting it into practice is harder. After an investigation, declarations and actions need to follow quickly if environmental damage is to be reduced and previous efforts improved on. Three conditions have to be met: an action must be available to take, the alternatives [&hellip;]<\/p>\n","protected":false},"author":132,"featured_media":225929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_deiso_takeaway":"","_deiso_part":0,"_deiso_aiv_faq":[{"q":"What is a life cycle assessment?","a":"Life cycle assessment (LCA) is a methodology for assessing the environmental impacts of a product or system across its whole life cycle, from raw material extraction to disposal. It identifies and quantifies ecological effects so decision-makers can compare options and choose more sustainable approaches."},{"q":"What does a life cycle assessment include?","a":"An LCA considers raw material extraction, production, product use, transportation, energy use, and waste management. It evaluates these stages across the product or service\u2019s entire life cycle."},{"q":"How is a life cycle assessment carried out?","a":"A trained analyst collects data across all stages of a product\u2019s life cycle, enters it into software, and models the system. The analyst then examines the environmental effects of each stage and prepares an environmental profile with recommendations for reducing impacts."},{"q":"What are the main types of life cycle assessment studies?","a":"The main types are screening LCA, product LCA, and comparative LCA. Screening LCA estimates overall environmental load, product LCA examines a product from conception to disposal, and comparative LCA compares the impacts of two or more alternatives."},{"q":"What is the difference between LCA and an environmental impact assessment?","a":"LCA evaluates a product or service from raw material extraction through end-of-life, typically on a global scale. An environmental impact assessment examines a single location and considers site-specific factors such as nearby residents and ecosystems."}],"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1737],"tags":[],"deiso_standard":[],"deiso_series":[],"deiso_issue":[],"deiso-finder":[],"content-type":[],"content-filter":[],"site-search-options":[976],"class_list":["post-225915","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","site-search-options-training","grve-entry-item","grve-blog-item"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/dei.so\/wp-content\/uploads\/2022\/10\/getteing_started_withLCA_DEISO.jpg","_links":{"self":[{"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/posts\/225915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/users\/132"}],"replies":[{"embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/comments?post=225915"}],"version-history":[{"count":0,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/posts\/225915\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/media\/225929"}],"wp:attachment":[{"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/media?parent=225915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/categories?post=225915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/tags?post=225915"},{"taxonomy":"deiso_standard","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/deiso_standard?post=225915"},{"taxonomy":"deiso_series","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/deiso_series?post=225915"},{"taxonomy":"deiso_issue","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/deiso_issue?post=225915"},{"taxonomy":"deiso-finder","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/deiso-finder?post=225915"},{"taxonomy":"content-type","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/content-type?post=225915"},{"taxonomy":"content-filter","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/content-filter?post=225915"},{"taxonomy":"site-search-options","embeddable":true,"href":"https:\/\/dei.so\/fr\/wp-json\/wp\/v2\/site-search-options?post=225915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}