{"id":3486,"date":"2026-05-28T08:44:10","date_gmt":"2026-05-28T06:44:10","guid":{"rendered":"https:\/\/afen.fr\/?p=3486"},"modified":"2026-05-28T08:44:10","modified_gmt":"2026-05-28T06:44:10","slug":"principe-dequivalence-ou-like-for-like-ce-que-ca-change-pour-la-neutralite-carbone","status":"publish","type":"post","link":"https:\/\/afen.fr\/en\/actualite\/principe-dequivalence-ou-like-for-like-ce-que-ca-change-pour-la-neutralite-carbone\/","title":{"rendered":"Principe d\u2019\u00e9quivalence (ou \u201cLike-for-Like\u201d) : ce que \u00e7a change pour la neutralit\u00e9 carbone"},"content":{"rendered":"<p><em>D\u2019apr\u00e8s Carbon Gap, \u201c<a href=\"https:\/\/carbongap.org\/wp-content\/uploads\/2025\/12\/LfL_paper.pdf\">Understanding and Implementing the Like-for-Like Principle<\/a>\u201d, 2025<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">In brief<\/h2>\n\n\n\n<p>Pour arr\u00eater durablement le changement climatique, il ne suffit pas d\u2019atteindre la neutralit\u00e9 carbone une fois : il faut une neutralit\u00e9 carbone durable, o\u00f9 les flux de carbone sont r\u00e9\u00e9quilibr\u00e9s et les grands r\u00e9servoirs stabilis\u00e9s.<\/p>\n\n\n\n<p>Le principe Like-for-Like (LfL), ou principe d\u2019\u00e9quivalence source-puits, fixe une r\u00e8gle minimale pour la neutralisation des \u00e9missions difficiles \u00e0 r\u00e9duire, dites r\u00e9siduelles :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le CO\u2082 fossile peut uniquement \u00eatre neutralis\u00e9 par de l\u2019\u00e9limination du carbone (EDC) permanente.<\/li>\n\n\n\n<li>Les \u00e9missions biog\u00e9niques requi\u00e8rent de l\u2019EDC biog\u00e9nique robuste (agriculture, terres, etc.).<\/li>\n<\/ul>\n\n\n\n<p>En posant ces r\u00e8gles, le principe d\u2019\u00e9quivalence renforce l\u2019incitation \u00e0 r\u00e9duire les \u00e9missions avant de les neutraliser et clarifie les cas d\u2019usage des approches d\u2019\u00e9limination temporaires et permanentes.<\/p>\n\n\n\n<p>\u00c0 court terme, sa mise en \u0153uvre se heurte toutefois \u00e0 des contraintes structurelles: une offre encore limit\u00e9e et le co\u00fbt \u00e9lev\u00e9 de l\u2019EDC permanente , et la n\u00e9cessit\u00e9 de cr\u00e9er de la demande pour l\u2019EDC biog\u00e9nique.<\/p>\n\n\n\n<p>La position de l\u2019AFEN sur le sujet est claire : r\u00e9duire d\u2019abord, et structurer d\u00e8s maintenant une gouvernance responsable pour le passage \u00e0 l\u2019\u00e9chelle de solutions d\u2019\u00e9limination du carbone robustes.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Pourquoi le principe d\u2019\u00e9quivalence (ou \u201cLike-for-Like\u201d) ?<\/h2>\n\n\n\n<p>La neutralit\u00e9 carbone est partout, mais pas toujours cr\u00e9dible. On peut afficher une \u201cneutralit\u00e9 carbone\u201d tout en continuant \u00e0 d\u00e9placer du carbone fossile tr\u00e8s stable (cycle lent, lithosph\u00e8re) vers des r\u00e9servoirs plus vuln\u00e9rables (for\u00eats, sols, oc\u00e9ans) qui peuvent br\u00fbler, s\u00e9cher, se saturer (<a href=\"https:\/\/rock.geosociety.org\/net\/gsatoday\/archive\/9\/11\/pdf\/i1052-5173-9-11-1.pdf\">Berner, 1999<\/a> ; <a href=\"https:\/\/www.nature.com\/articles\/s41467-024-53466-0\">Dooley et al., 2024<\/a>).<\/p>\n\n\n\n<p>Le rapport de Carbon Gap propose une boussole simple pour \u00e9viter ces trajectoires fragiles : viser non seulement la neutralit\u00e9 carbone, mais une neutralit\u00e9 carbone durable\u201d, o\u00f9 les flux de carbone sont r\u00e9\u00e9quilibr\u00e9s entre cycles rapide et lent et o\u00f9 les principaux r\u00e9servoirs se stabilisent (<a href=\"https:\/\/www.nature.com\/articles\/s41558-021-01245-w\">Fankhauser et al., 2022<\/a> ; <a href=\"https:\/\/www.ipcc.ch\/sr15\/\">IPCC, 2018<\/a>).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Le principe d\u2019\u00e9quivalence en pratique<\/h2>\n\n\n\n<p>Le principe d\u2019\u00e9quivalence traduit cette exigence dans l\u2019usage des retraits de CO\u2082 :<\/p>\n\n\n\n<p>Voluntary <strong>\u00e9missions fossiles r\u00e9siduelles ne devraient \u00eatre neutralis\u00e9es que par de l\u2019EDC permanente<\/strong>, renvoyant le carbone vers des r\u00e9servoirs de tr\u00e8s long terme (stockage g\u00e9ologique, certaines min\u00e9ralisations, biochar le plus durable).<\/p>\n\n\n\n<p>Voluntary <strong>\u00e9missions biog\u00e9niques r\u00e9siduelles devraient \u00eatre neutralis\u00e9es par de l\u2019EDC biog\u00e9nique<\/strong> (for\u00eats, sols, biomasse) si les risques de renversement sont ma\u00eetris\u00e9s.<\/p>\n\n\n\n<p>Les gaz \u00e0 courte dur\u00e9e de vie comme le m\u00e9thane (CH\u2084) appellent des r\u00e8gles sp\u00e9cifiques : r\u00e9ductions en priorit\u00e9, ainsi qu\u2019\u00e9ventuellement des retraits temporaires \u201cempil\u00e9s\u201d pour compenser leur pic de r\u00e9chauffement (<a href=\"https:\/\/link.springer.com\/article\/10.1007\/s10584-019-02437-2\">Harmsen et al., 2020<\/a> ; <a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-9326\/ab6d7e\">Lynch et al., 2020<\/a>).<\/p>\n\n\n\n<p>Le principe d&rsquo;\u00e9quivalence ne s\u2019applique qu\u2019\u00e0 la neutralisation\/compensation. Il ne remet pas en cause les approches \u201ccontribution\u201d, ni le r\u00f4le de la protection des puits naturels, mais clarifie ce qu\u2019est une neutralisation robuste \u00e0 long terme (<a href=\"https:\/\/www.annualreviews.org\/content\/journals\/10.1146\/annurev-environ-112320-105050\">Allen et al., 2022<\/a>).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"358\" height=\"507\" src=\"https:\/\/afen.fr\/wp-content\/uploads\/2026\/05\/unnamed-1.png\" alt=\"\" class=\"wp-image-3487\" srcset=\"https:\/\/afen.fr\/wp-content\/uploads\/2026\/05\/unnamed-1.png 358w, https:\/\/afen.fr\/wp-content\/uploads\/2026\/05\/unnamed-1-212x300.png 212w, https:\/\/afen.fr\/wp-content\/uploads\/2026\/05\/unnamed-1-8x12.png 8w\" sizes=\"(max-width: 358px) 100vw, 358px\" \/><figcaption class=\"wp-element-caption\">Source: Carbon Gap, <a href=\"https:\/\/carbongap.org\/wp-content\/uploads\/2025\/12\/LfL_paper.pdf\">\u201cUnderstanding and Implementing the Like-for-Like Principle\u201d<\/a>, 2025<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">3. Ce que le principe d\u2019\u00e9quivalence change concr\u00e8tement<\/h2>\n\n\n\n<p>Trois d\u00e9placements majeurs :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R\u00e9duction d\u2019abord, vraiment.<\/strong> Les \u00e9missions fossiles doivent d\u2019abord \u00eatre r\u00e9duites autant que possible, puis seulement neutralis\u00e9es en dernier recours par des retraits permanents. Les retraits ne remplacent pas les r\u00e9ductions, ils traitent le r\u00e9siduel. Le fait que l\u2019EDC permanente soit aujourd\u2019hui encore co\u00fbteuse (prix moyen ~320 $\/tCO\u2082 pour le durable, <a href=\"https:\/\/www.cdr.fyi\/blog\/2024-year-in-review\">CDR.fyi<\/a>) et limit\u00e9e en volume ne fait que renforcer cette logique.<\/li>\n\n\n\n<li><strong>L\u2019EDC biog\u00e9nique trouve son vrai r\u00f4le. <\/strong>Ils sortent de la logique \u201ccompensation \u00e0 bas co\u00fbt du fossile\u201d pour se concentrer sur les \u00e9missions biog\u00e9niques r\u00e9siduelles (agriculture, LULUCF, d\u00e9chets), qui repr\u00e9sentent d\u00e9j\u00e0 plusieurs GtCO\u2082e\/an et dont la part relative va augmenter.<\/li>\n\n\n\n<li><strong>Le besoin de l\u2019EDC permanente devient explicite.<\/strong> L\u2019UE anticipe encore 400\u2013550 MtCO\u2082e\/an d\u2019\u00e9missions r\u00e9siduelles en 2050, toutes origines confondues, dont 129\u2013256 MtCO\u2082e \u00e0 neutraliser par des retraits permanents (ESABCC, 2025). Aujourd\u2019hui, les retraits r\u00e9ellement durables se comptent en centaines de milliers de tonnes (<a href=\"https:\/\/doi.org\/10.1016\/j.oneear.2024.04.009\">Smith et al., 2024<\/a>). L\u2019\u00e9cart est structurel.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4. Obstacles et leviers pour l\u2019UE<\/h2>\n\n\n\n<p>Carbon Gap identifie quatre verrous principaux :<\/p>\n\n\n\n<p><strong>Permanence<\/strong> : tracer une fronti\u00e8re claire entre EDC permanente et temporaire.<\/p>\n\n\n\n<p><strong>Offre<\/strong> : mont\u00e9e en puissance lente de l\u2019EDC permanente, en dessous des besoins projet\u00e9s.<\/p>\n\n\n\n<p><strong>Prix<\/strong> : \u00e9cart de co\u00fbt potentiellement large entre EDC permanentes et biog\u00e9niques (<a href=\"https:\/\/alliedoffsets.com\/reports\/\">Allied Offsets, 2025<\/a>).<\/p>\n\n\n\n<p><strong>Comptabilit\u00e9<\/strong> : objectifs et inventaires qui m\u00e9langent r\u00e9ductions, puits naturels passifs et \u00e9limination du carbone, ce qui entretient la fongibilit\u00e9 et complique l\u2019application du principe d\u2019\u00e9quivalence (<a href=\"https:\/\/doi.org\/10.1038\/s41558-024-01984-6\">Lamb et al., 2024<\/a>).<\/p>\n\n\n\n<p>Les leviers propos\u00e9s pour l\u2019UE :<\/p>\n\n\n\n<p><strong>Adopter des cibles s\u00e9par\u00e9es<\/strong> de r\u00e9duction et \u00e9limination, puis, au sein de l\u2019\u00e9limination, des objectifs pour l\u2019\u00e9limination biog\u00e9nique et permanente distincts (<a href=\"https:\/\/carbongap.org\/divide-to-deliver\">Carbon Gap, 2025 \u201cDivide to Deliver\u201d<\/a>).<\/p>\n\n\n\n<p><strong>R\u00e9former la comptabilit\u00e9<\/strong> en distinguant puits naturels passifs et \u00e9limination du carbone associ\u00e9e \u00e0 une activit\u00e9 humaine dans les inventaires, avec un traitement sp\u00e9cifique de l\u2019utilisation des terres, changement d\u2019affectation des terres et foresterie (UTCATF) (<a href=\"https:\/\/doi.org\/10.1038\/s41586-024-08326-8\">Allen et al., 2024<\/a> ; <a href=\"https:\/\/climate-advisory-board.europa.eu\/reports-and-publications\/scaling-up-carbon-dioxide-removals-recommendations-for-navigating-opportunities-and-risks-in-the-eu\">ESABCC, 2025<\/a>). Les puits naturels passifs ne peuvent pas \u00eatre compt\u00e9s comme \u00e9limination au sens d\u00e9fini par le GIEC (groupe d&rsquo;experts intergouvernemental sur l&rsquo;\u00e9volution du climat) qui r\u00e9serve cette notion aux activit\u00e9s anthropiques (<a href=\"https:\/\/www.ipcc.ch\/report\/ar6\/syr\/downloads\/report\/IPCC_AR6_SYR_Annex-I.pdf\">GIEC, AR6 Synthesis Report, Annex I: Glossary, 2023<\/a>).<\/p>\n\n\n\n<p><strong>Cr\u00e9er une demande pour toutes les approches d\u2019\u00e9limination<\/strong> en mettant en oeuvre un prix sur les \u00e9missions biog\u00e9niques, soutenant le passage \u00e0 l\u2019\u00e9chelle de l\u2019EDC permanente via du financement en recherche et innovation (R&amp;I), encourageant les achats publics, et les int\u00e9grant dans le <a href=\"https:\/\/commission.europa.eu\/topics\/eu-competitiveness\/clean-industrial-deal_en\">Clean Industrial Deal<\/a> et le <a href=\"https:\/\/single-market-economy.ec.europa.eu\/industry\/sustainability\/net-zero-industry-act_en\">Net-Zero Industry Act<\/a> (Commission europ\u00e9enne, 2024\u20132025).<\/p>\n\n\n\n<p><strong>Mettre en \u0153uvre le principe d\u2019\u00e9quivalence progressivement<\/strong> avec un pourcentage de conformit\u00e9 croissant, une p\u00e9riode de gr\u00e2ce encadr\u00e9e, et une approche hybride combinant obligations et trajectoires indicatives.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. La position de l\u2019AFEN<\/h2>\n\n\n\n<p>Pour l\u2019AFEN, ce rapport confirme que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00e9duire les \u00e9missions reste la priorit\u00e9 absolue, mais l\u2019\u00e9limination du CO\u2082 est indispensable pour atteindre une neutralit\u00e9 carbone durable.<\/li>\n\n\n\n<li>Le principe d\u2019\u00e9quivalence (ou \u201clike-for-like\u201d) offre un test d\u2019int\u00e9grit\u00e9 simple : quelles \u00e9missions sont neutralis\u00e9es, par quel type d\u2019\u00e9limination , et pour combien de temps.<\/li>\n\n\n\n<li>La France et l\u2019UE doivent organiser ensemble le d\u00e9veloppement de l\u2019\u00e9limination biog\u00e9nique robuste et de l\u2019\u00e9limination permanente, en clarifiant leur r\u00f4le respectif dans les politiques publiques comme dans les strat\u00e9gies d\u2019entreprises.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Une boussole essentielle, mais un d\u00e9fi d&rsquo;op\u00e9rationnalit\u00e9<\/h2>\n\n\n\n<p>Si le principe d\u2019\u00e9quivalence s&rsquo;impose comme une boussole indispensable pour garantir l\u2019int\u00e9grit\u00e9 scientifique et la durabilit\u00e9 de la neutralit\u00e9 carbone, son application concr\u00e8te exige encore un temps de maturit\u00e9 op\u00e9rationnelle. Le passage de la th\u00e9orie \u00e0 la pratique se heurte en effet \u00e0 des r\u00e9alit\u00e9s \u00e9conomiques complexes, notamment le co\u00fbt et l&rsquo;acc\u00e8s aux technologies d\u2019\u00e9limination permanente, ainsi que sur l&rsquo;imp\u00e9ratif d\u2019amplifier la demande et le financement pour les solutions fond\u00e9es sur la nature. L&rsquo;enjeu des prochaines ann\u00e9es ne sera donc pas de remettre en question la pertinence du concept, mais bien de co-construire des trajectoires de transition viables pour l&rsquo;ensemble des acteurs.<\/p>","protected":false},"excerpt":{"rendered":"<p>D\u2019apr\u00e8s Carbon Gap, \u201cUnderstanding and Implementing the Like-for-Like Principle\u201d, 2025 En bref Pour arr\u00eater durablement le changement climatique, il ne suffit pas d\u2019atteindre la neutralit\u00e9 carbone une fois : il faut une neutralit\u00e9 carbone durable, o\u00f9 les flux de carbone sont r\u00e9\u00e9quilibr\u00e9s et les grands r\u00e9servoirs stabilis\u00e9s. Le principe Like-for-Like (LfL), ou principe d\u2019\u00e9quivalence source-puits, [&hellip;]<\/p>","protected":false},"author":8,"featured_media":3491,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Principe d\u2019\u00e9quivalence (ou \u201cLike-for-Like\u201d) : ce que \u00e7a change pour la neutralit\u00e9 carbone &#8211; AFEN<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/afen.fr\/en\/actualite\/principe-dequivalence-ou-like-for-like-ce-que-ca-change-pour-la-neutralite-carbone\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Principe d\u2019\u00e9quivalence (ou \u201cLike-for-Like\u201d) : ce que \u00e7a change pour la neutralit\u00e9 carbone &#8211; AFEN\" \/>\n<meta property=\"og:description\" content=\"D\u2019apr\u00e8s Carbon Gap, \u201cUnderstanding and Implementing the Like-for-Like Principle\u201d, 2025 En bref Pour arr\u00eater durablement le changement climatique, il ne suffit pas d\u2019atteindre la neutralit\u00e9 carbone une fois : il faut une neutralit\u00e9 carbone durable, o\u00f9 les flux de carbone sont r\u00e9\u00e9quilibr\u00e9s et les grands r\u00e9servoirs stabilis\u00e9s. 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