{"id":180198,"date":"2023-12-14T11:30:56","date_gmt":"2023-12-14T16:30:56","guid":{"rendered":"https:\/\/irpp-policy-options.local\/issues\/prevention-inondation\/"},"modified":"2025-04-14T03:27:35","modified_gmt":"2025-04-14T07:27:35","slug":"prevention-inondation","status":"publish","type":"issues","link":"https:\/\/potestlaunch.irpp.org\/fr\/2023\/12\/prevention-inondation\/","title":{"rendered":"Changements climatiques\u202f: pr\u00e9venir plut\u00f4t que d\u2019\u00eatre pris au d\u00e9pourvu"},"content":{"rendered":"<p style=\"text-align: right;\"><em>(English version available <a href=\"https:\/\/potestlaunch.irpp.org\/magazines\/december-2023\/flood-protection\/\">here<\/a>)<\/em><\/p>\n<p>2023 sera l\u2019ann\u00e9e la plus chaude jamais enregistr\u00e9e\u00a0: \u00a0des inondations intenses, des d\u00f4mes de chaleur et des incendies de for\u00eat ont \u00e9t\u00e9 r\u00e9pertori\u00e9s dans le monde entier.<\/p>\n<p><span data-contrast=\"auto\">On en sait toutefois beaucoup moins sur les possibilit\u00e9s importantes et peu co\u00fbteuses qui s&rsquo;offrent au Canada et \u00e0 ses r\u00e9sidents pour \u00e9viter des pertes ou des r\u00e9parations majeures \u00e0 la suite de ces sinistres qui se reproduiront assur\u00e9ment dans le futur.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Les gains les moins co\u00fbteux et les plus rapides pour les propri\u00e9taires et les gouvernements souhaitant se pr\u00e9parer aux changements climatiques sont r\u00e9alisables en am\u00e9liorant la protection du territoire contre les inondations. L\u2019am\u00e9nagement du terrain autour de la maison pour \u00e9loigner le ruissellement de l\u2019eau des fondations et l\u2019interdiction, par les d\u00e9cideurs, de construire des maisons sur des plaines inondables, sont deux mesures faciles \u00e0 mettre en place pour y parvenir.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Les inondations de sous-sols r\u00e9sidentiels constituent <\/span><a href=\"https:\/\/www.centreintactadaptationclimat.ca\/wp-content\/uploads\/2022\/02\/UoW_CIAC_2022_02_Nager-sur-place_Marche-habitation.pdf\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">la principale d\u00e9pense financi\u00e8re<\/span><\/a><span data-contrast=\"auto\"> li\u00e9e aux changements climatiques au Canada. Le co\u00fbt des d\u00e9g\u00e2ts des eaux, d\u00e9j\u00e0 \u00e9lev\u00e9, ne cesse d&rsquo;augmenter. <\/span><a href=\"https:\/\/www.canada.ca\/fr\/campagne\/prevention-inondation\/connaissez-les-risques\/cout-inondations.html\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">Le co\u00fbt moyen d&rsquo;une inondation de sous-sol au Canada est de 43 000$<\/span><\/a><span data-contrast=\"auto\">.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Jusqu&rsquo;\u00e0 10 % des habitations (1,5 million de r\u00e9sidences) <\/span><a href=\"https:\/\/financialpost.com\/moneywise-pro\/up-to-10-of-canadian-homes-are-uninsurable-for-flooding-heres-what-you-need-to-know\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">ne sont pas assurables contre les inondations<\/span><\/a><span data-contrast=\"auto\"> en raison du risque d&rsquo;inondation existant dans les sous-sols. Les inondations catastrophiques survenues entre 2010 et 2020 ont fait baisser le prix de vente des maisons <\/span><a href=\"https:\/\/www.centreintactadaptationclimat.ca\/wp-content\/uploads\/2022\/02\/UoW_CIAC_2022_02_Nager-sur-place_Marche-habitation.pdf\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">de 8 % en moyenne<\/span><\/a><span data-contrast=\"auto\"> dans ces r\u00e9gions.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/www.intactcentreclimateadaptation.ca\/wp-content\/uploads\/2023\/07\/UoW_CIAC_2023_07_Integrer_le_changement_climatique_physique_dans_les_investissements.pdf\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">Les pertes assurables attribuables aux sinistres climatiques<\/span><\/a><span data-contrast=\"auto\"> ont atteint une moyenne de 2,1 milliards de dollars par an au Canada entre 2009 et 2012, contre 250 \u00e0 450 millions de dollars par an entre 1994 et 2008. Les demandes d&rsquo;indemnisation au titre des inondations catastrophiques au Canada sont \u00e9galement en croissance. Aujourd&rsquo;hui, pour chaque dollar de perte couvert par une assurance, l\u2019assur\u00e9 doit aussi d\u00e9bourser une somme situ\u00e9e entre 3 et 4 dollars de dommages pour lesquels il n&rsquo;y a pas de couverture d&rsquo;assurance. C&rsquo;est ce qu&rsquo;on appelle le d\u00e9ficit d&rsquo;assurance.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">En g\u00e9n\u00e9ral, quatre facteurs contribuent au risque d&rsquo;inondation : des pr\u00e9cipitations plus fortes, des infrastructures municipales et r\u00e9sidentielles vieillissantes et la perte d&rsquo;infrastructures naturelles qui fonctionnent comme des \u00e9ponges pour absorber l&rsquo;eau, telles que les for\u00eats, les champs et les zones humides.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Les gouvernements et les propri\u00e9taires ont un r\u00f4le crucial \u00e0 jouer pour inverser l&rsquo;incidence et le co\u00fbt de l&rsquo;augmentation des risques d&rsquo;inondation.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">Investir maintenant, \u00e9pargner plus tard<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Pour le secteur public, l&rsquo;am\u00e9lioration de la protection contre les inondations par l&rsquo;investissement dans les infrastructures physiques et naturelles est productive et rentable, \u00e0 un moment o\u00f9 les budgets publics sont soumis \u00e0 une pression croissante en raison de l&rsquo;augmentation des co\u00fbts des programmes et des int\u00e9r\u00eats de la dette, du ralentissement de la croissance des recettes et des nombreuses demandes concurrentes de d\u00e9penses op\u00e9rationnelles et d&rsquo;investissements en capital.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Toutes ces contraintes rendent encore plus n\u00e9cessaire l&rsquo;efficacit\u00e9 des nouvelles d\u00e9penses du secteur public. Chaque dollar investi dans l&rsquo;adaptation aux changements climatiques permet d\u2019\u00e9conomiser entre 2 et 10 dollars en termes de <\/span><a href=\"https:\/\/www.goldstandard.org\/blog-item\/business-case-climate-adaptation-why-it%E2%80%99s-profitable-investment\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">pertes \u00e9vit\u00e9es<\/span><\/a><span data-contrast=\"auto\"> par d\u00e9cennie, comme l&rsquo;ont montr\u00e9 diverses \u00e9tudes.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">En ce qui concerne les infrastructures naturelles, les efforts des gouvernements aux niveaux provincial et municipal devraient commencer par le principe \u00ab\u202fd&rsquo;abord, ne pas nuire\u202f\u00bb.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Construire des logements dans des zones humides, des for\u00eats, des champs et d&rsquo;autres zones \u00e0 risque d&rsquo;inondation ou en proie \u00e0 des crues fait montre d\u2019une vision \u00e0 court terme et entra\u00eenera un co\u00fbt \u00e9lev\u00e9 \u00e0 long terme, parce qu\u2019il faudra r\u00e9parer les d\u00e9g\u00e2ts caus\u00e9s par les inondations et reloger les propri\u00e9taires dans les zones les plus \u00e0 risque.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Pour les municipalit\u00e9s, l\u2019augmentation du nombre de logements se traduit par une hausse des recettes fiscales, m\u00eame si les maisons sont construites dans les plaines inondables. Cette perspective offre un attrait \u00e0 court terme, qui laissera \u00e9ventuellement place \u00e0 la gestion des angoisses des acheteurs peu m\u00e9fiants et par des factures de r\u00e9paration consid\u00e9rables pour la reconstruction des infrastructures, les co\u00fbts de remise en \u00e9tat et les frais de relogement des propri\u00e9taires.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">En plus de ces pertes mat\u00e9rielles, on retrouve \u00e9galement les pertes d&rsquo;\u00e9cosyst\u00e8mes et d&rsquo;habitats naturels cruciaux qui absorbent l&rsquo;eau, en particulier lors de fortes pluies et d&rsquo;autres temp\u00eates.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Il est donc essentiel que les gouvernements <\/span><a href=\"https:\/\/potestlaunch.irpp.org\/magazines\/october-2023\/value-natural-assets-properly\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">\u00e9valuent et mesurent<\/span><\/a><span data-contrast=\"auto\"> les actifs naturels et leurs \u00e9cosyst\u00e8mes en gardant en t\u00eate que \u00ab\u202fce qui est mesur\u00e9 est g\u00e9r\u00e9\u202f\u00bb.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">Se prot\u00e9ger est l\u2019affaire de tous<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Pour les propri\u00e9taires, l&rsquo;am\u00e9lioration de la protection contre les inondations est simple et essentielle. Pour de nombreux m\u00e9nages, les pressions li\u00e9es au co\u00fbt de la vie se sont accentu\u00e9es avec l&rsquo;augmentation des taux des pr\u00eats hypoth\u00e9caires et la hausse du co\u00fbt des denr\u00e9es alimentaires et de l&rsquo;\u00e9nergie, en particulier \u00e0 la fin de 2023 par rapport \u00e0 il y a seulement deux ans, et surtout par rapport \u00e0 l&rsquo;\u00e8re pr\u00e9pand\u00e9mique.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Avec moins de marge de man\u0153uvre financi\u00e8re, de nombreux m\u00e9nages peuvent difficilement faire face \u00e0 des d\u00e9penses importantes et inattendues telles que les dommages caus\u00e9s par les inondations. La protection des propri\u00e9taires contre les inondations est essentielle pour r\u00e9duire ce risque financier.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Les avantages de la protection r\u00e9sidentielle contre les inondations ne se limitent pas aux propri\u00e9taires. Par exemple, dans la r\u00e9gion de Toronto, 500 000 locataires vivent dans des appartements en sous-sol. Nombre d&rsquo;entre eux ne seraient pas en mesure de payer un h\u00f4tel ou un autre type d&rsquo;h\u00e9bergement d\u2019urgence si une inondation les mettait \u00e0 la rue.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">L&rsquo;am\u00e9lioration de la protection contre les inondations est \u00e9galement conforme \u00e0 la <\/span><a href=\"https:\/\/www.canada.ca\/fr\/services\/environnement\/meteo\/changementsclimatiques\/plan-climatique\/strategie-nationale-adaptation.html\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">Strat\u00e9gie nationale d&rsquo;adaptation du Canada<\/span><\/a><span data-contrast=\"auto\">. L&rsquo;un de ses objectifs est que \u00ab\u202fd&rsquo;ici 2025, 50 % des Canadiens aient pris des mesures concr\u00e8tes pour mieux se pr\u00e9parer et r\u00e9agir aux risques li\u00e9s aux changements climatiques \u00bb qui pourraient affecter leur r\u00e9sidence.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Le propri\u00e9taire moyen peut prot\u00e9ger sa r\u00e9sidence contre les inondations en quelques jours, sans expertise particuli\u00e8re, et g\u00e9n\u00e9ralement pour moins de quelques centaines de dollars.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Lorsque les propri\u00e9taires re\u00e7oivent le pamphlet gratuit <\/span><a href=\"https:\/\/www.centreintactadaptationclimat.ca\/wp-content\/uploads\/2023\/05\/CentreIntact-3-etapes-pour-une-protection-rentable-QR.pdf\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">Trois \u00e9tapes pour une protection rentable contre les inondations<\/span><\/a><span data-contrast=\"auto\">, 70 % d&rsquo;entre eux d\u00e9clarent avoir pris, dans les six mois suivant sa r\u00e9ception, deux mesures de protection de leur maison qu&rsquo;ils n&rsquo;auraient pas prises autrement.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">Vers la pr\u00e9paration et la r\u00e9silience<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Les faits sont clairs. Les propri\u00e9taires agiront pour prot\u00e9ger leur maison des inondations lorsqu&rsquo;ils sauront quoi faire. S&rsquo;ils n&rsquo;agissent pas, c&rsquo;est parce qu&rsquo;ils ne savent pas par o\u00f9 commencer.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Heureusement, le gouvernement canadien peut s&rsquo;appuyer sur les initiatives notables d&rsquo;\u00e9ducation \u00e0 la protection contre les inondations qui existent d\u00e9j\u00e0.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Diverses organisations nationales ont d\u00e9ploy\u00e9 des efforts consid\u00e9rables pour informer et \u00e9duquer les propri\u00e9taires sur les moyens de r\u00e9duire leur exposition aux risques d&rsquo;inondation.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Au niveau municipal, plus de 20 villes canadiennes communiquent aux propri\u00e9taires des conseils sur la protection contre les inondations.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Dans le secteur financier, <\/span><a href=\"https:\/\/www.bmo.com\/fr-ca\/principal\/particuliers\/prets-hypothecaires\/maisons-ecologiques\/\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">BMO<\/span><\/a><span data-contrast=\"auto\"> et <\/span><a href=\"https:\/\/www.meridiancu.ca\/good-sense\/posts\/protect-your-home-and-your-savings-from-flood-risk\" target=\"_blank\" rel=\"noopener\"><span data-contrast=\"none\">Meridian<\/span><\/a><span data-contrast=\"auto\"> aident les propri\u00e9taires \u00e0 r\u00e9duire les risques d&rsquo;inondation.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Pourtant, comme 2023 l&rsquo;a tristement d\u00e9montr\u00e9, l&rsquo;approche du Canada en mati\u00e8re de protection contre les inondations et de trop nombreux autres \u00e9v\u00e9nements li\u00e9s \u00e0 des conditions m\u00e9t\u00e9orologiques extr\u00eames a \u00e9t\u00e9 largement r\u00e9active et trop souvent ax\u00e9e sur la \u00ab\u202fgestion par catastrophe\u202f\u00bb.\u00a0<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">Le Canada doit passer \u00e0 une culture de pr\u00e9paration et de r\u00e9silience. La diffusion des conseils d\u00e9taill\u00e9s qui existent pour limiter les risques li\u00e9s aux inondations devrait \u00eatre une priorit\u00e9 et un \u00e9l\u00e9ment majeur de la mise en \u0153uvre de l&rsquo;adaptation au climat.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:200,&quot;335559740&quot;:276}\">\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>(English version available here) 2023 sera l\u2019ann\u00e9e la plus chaude jamais enregistr\u00e9e\u00a0: \u00a0des inondations intenses, des d\u00f4mes de chaleur et des incendies de for\u00eat ont \u00e9t\u00e9 r\u00e9pertori\u00e9s dans le monde entier. On en sait toutefois beaucoup moins sur les possibilit\u00e9s importantes et peu co\u00fbteuses qui s&rsquo;offrent au Canada et \u00e0 ses r\u00e9sidents pour \u00e9viter des [&hellip;]<\/p>\n","protected":false},"featured_media":109984,"template":"","meta":{"_acf_changed":false,"content-type":"","ep_exclude_from_search":false},"categories":[9362,9361,9358,9372,9403],"tags":[9116,9117,9028,9118],"article-status":[],"irpp-category":[4326,4236,4245,4243,4260,4261,4288,4229,4295],"section":[],"irpp-tag":[7008,7130],"class_list":["post-180198","issues","type-issues","status-publish","has-post-thumbnail","hentry","category-economie","category-environnement","category-politique","category-recent-stories-fr","category-securite-nationale","tag-changement-climatique","tag-environment-fr","tag-infrastructures","tag-politics-fr","irpp-category-changements-climatiques","irpp-category-climate-change","irpp-category-economie","irpp-category-economy","irpp-category-environment","irpp-category-environnement","irpp-category-national-security","irpp-category-politics","irpp-category-politique","irpp-tag-infrastructure","irpp-tag-infrastructures"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Changements climatiques\u202f: pr\u00e9venir plut\u00f4t que d\u2019\u00eatre pris au d\u00e9pourvu<\/title>\n<meta name=\"description\" content=\"G\u00e9rer les dommages caus\u00e9s par des inondations doit se faire en amont. 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