{"id":3998,"date":"2023-01-18T19:26:12","date_gmt":"2023-01-18T19:26:12","guid":{"rendered":"https:\/\/climatescience2030.com\/quest-ce-que-le-giec\/"},"modified":"2023-03-23T13:32:05","modified_gmt":"2023-03-23T13:32:05","slug":"quest-ce-que-le-giec","status":"publish","type":"post","link":"https:\/\/climatescience2030.com\/fr\/quest-ce-que-le-giec\/","title":{"rendered":"Qu&#8217;est-ce que le GIEC ?"},"content":{"rendered":"[vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;none&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; bg_image=&#8221;890&#8243; bg_position=&#8221;center center&#8221; background_image_loading=&#8221;lazy-load&#8221; bg_repeat=&#8221;no-repeat&#8221; scene_position=&#8221;center&#8221; top_padding=&#8221;12%&#8221; constrain_group_1=&#8221;yes&#8221; bottom_padding=&#8221;12%&#8221; text_color=&#8221;light&#8221; text_align=&#8221;center&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; id=&#8221;culture&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column constrain_group_100=&#8221;yes&#8221; constrain_group_101=&#8221;yes&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221; column_padding_type=&#8221;advanced&#8221; gradient_type=&#8221;default&#8221;][nectar_highlighted_text color_type=&#8221;regular&#8221; highlight_color=&#8221;#cddb23&#8243; text_color=&#8221;#000000&#8243; style=&#8221;full_text&#8221; highlight_expansion=&#8221;default&#8221;]\n<h1><em><b>Qu&#8217;est-ce que le GIEC ?<\/b><\/em><\/h1>\n[\/nectar_highlighted_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; top_padding=&#8221;6%&#8221; bottom_padding=&#8221;3%&#8221; left_padding_desktop=&#8221;18%&#8221; constrain_group_2=&#8221;yes&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]\n<h2>Le Groupe d\u2019experts intergouvernemental sur l\u2019\u00e9volution du climat (GIEC) fournit r\u00e9guli\u00e8rement des \u00e9valuations des bases scientifiques du changement climatique, de ses cons\u00e9quences et risques futurs, ainsi que des possibilit\u00e9s d\u2019adaptation et d\u2019att\u00e9nuation.<\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;6%&#8221; left_padding_desktop=&#8221;18%&#8221; constrain_group_2=&#8221;yes&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]<span style=\"font-weight: 400;\">Le GIEC a \u00e9t\u00e9 cr\u00e9\u00e9 en 1988 par l\u2019Organisation m\u00e9t\u00e9orologique mondiale (OMM) et le Programme des Nations unies pour l\u2019environnement. Il a pour but de renseigner les d\u00e9cideurs et de fournir les bases scientifiques n\u00e9cessaires aux politiques climatiques. Parmi celles-ci figure la CNUCC (la Convention-cadre des Nations unies sur les changements climatiques). Le GIEC est une organisation intergouvernementale ouverte \u00e0 tous les pays membres de l\u2019OMM et de l\u2019ONU. Il compte actuellement 195 membres.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Depuis sa fondation, il a produit six rapports d\u2019\u00e9valuation, un tous les six ou sept ans. Il a \u00e9galement r\u00e9dig\u00e9 un certain nombre de rapports sp\u00e9ciaux, par exemple sur les terres \u00e9merg\u00e9es, l\u2019oc\u00e9an et la cryosph\u00e8re, les ph\u00e9nom\u00e8nes extr\u00eames et catastrophes, mais aussi sur les \u00e9nergies renouvelables. En 2007, le GIEC a re\u00e7u le prix Nobel de la paix aux c\u00f4t\u00e9s de l\u2019ancien vice-pr\u00e9sident am\u00e9ricain Al Gore, pour saluer \u00ab leurs efforts de collecte et de diffusion des connaissances sur les changements climatiques provoqu\u00e9s par l\u2019homme et pour avoir pos\u00e9 les fondements pour les mesures n\u00e9cessaires \u00e0 la lutte contre ces changements \u00bb.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Les gouvernements membres chargent le GIEC de l\u2019\u00e9valuation syst\u00e9matique de l\u2019\u00e9tat de la recherche sur le changement climatique et de la r\u00e9ponse \u00e0 des questions de recherche sp\u00e9cifiques. Par exemple, dans l\u2019Accord de Paris sign\u00e9 lors de la Conf\u00e9rence des Nations unies sur les changements climatiques de 2015, les parties se sont engag\u00e9es \u00e0 limiter l\u2019augmentation de la temp\u00e9rature moyenne mondiale \u00e0 1,5<\/span><span style=\"font-weight: 400;\">\u00b0<\/span><span style=\"font-weight: 400;\">C par rapport aux niveaux pr\u00e9industriels, quand l\u2019influence humaine sur le climat \u00e9tait encore n\u00e9gligeable ; en g\u00e9n\u00e9ral, les scientifiques utilisent la temp\u00e9rature moyenne sur la p\u00e9riode 1850-1900. Les pays ont ensuite demand\u00e9 au GIEC de s\u2019int\u00e9resser aux cons\u00e9quences d\u2019un r\u00e9chauffement plan\u00e9taire de 1,5 \u00b0C pour la Terre et aux solutions pour ne pas d\u00e9passer cette limite. Le GIEC a accept\u00e9, puis a r\u00e9dig\u00e9 le rapport sp\u00e9cial R\u00e9chauffement plan\u00e9taire de 1,5 \u00b0C publi\u00e9 en 2018.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Les auteurs du GIEC se r\u00e9partissent en trois groupes : le Groupe de travail I s\u2019int\u00e9resse aux bases scientifiques physiques du changement climatique, le Groupe de travail II aux diff\u00e9rentes cons\u00e9quences du changement climatique et \u00e0 l\u2019adaptation, et le Groupe de travail III aux moyens de r\u00e9duire notre influence sur le syst\u00e8me climatique mondial. Chaque groupe contribue au rapport d\u2019\u00e9valuation. Par ailleurs, des \u00e9quipes sp\u00e9ciales ont pour mission d\u2019aider le GIEC \u00e0 faire le suivi de toutes les donn\u00e9es utilis\u00e9es dans les rapports et d\u2019assister les gouvernements dans la production des inventaires nationaux de gaz \u00e0 effet de serre (GES). <\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Pour chaque rapport, le GIEC recrute des centaines d\u2019\u00e9minents scientifiques du monde entier pour examiner les meilleurs travaux de recherche disponibles. Ils les r\u00e9sument ensuite en utilisant les conventions d\u2019\u00e9criture pour les diff\u00e9rents degr\u00e9s de certitude et la quantit\u00e9 d\u2019\u00e9l\u00e9ments probants disponibles. Par exemple, pour que quelque chose soit qualifi\u00e9 de \u00ab probable \u00bb dans un rapport du GIEC, sa probabilit\u00e9 doit \u00eatre sup\u00e9rieure \u00e0 66 %. Si quelque chose est \u00ab quasiment certain \u00bb, comme le fait que les \u00e9missions de CO2 issues de l\u2019activit\u00e9 humaine favorisent l\u2019acidification des oc\u00e9ans et les modifications des chaleurs et froids extr\u00eames \u00e0 l\u2019\u00e9chelle mondiale, alors sa probabilit\u00e9 doit \u00eatre sup\u00e9rieure \u00e0 99 %.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">La premi\u00e8re version des rapports est ensuite examin\u00e9e en profondeur par des milliers d\u2019experts qui soumettent des observations. Pour finir, les repr\u00e9sentants des gouvernements membres collaborent avec les auteurs pour adopter un r\u00e9sum\u00e9 exact et exhaustif de chaque rapport pour les d\u00e9cideurs. Il souligne les r\u00e9sultats cl\u00e9s du processus, qui ont aussi fait l\u2019objet d\u2019une approbation formelle des pays membres du GIEC.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;3%&#8221; left_padding_desktop=&#8221;6%&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]\n<h2><b>Que nous apprennent ces rapports ?<\/b><\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;6%&#8221; left_padding_desktop=&#8221;40%&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]<span style=\"font-weight: 400;\">Les trois parties du dernier rapport d\u2019\u00e9valuation, l\u2019AR6, ont \u00e9t\u00e9 publi\u00e9es en 2021 et 2022. Un rapport de synth\u00e8se est quant \u00e0 lui paru en mars 2023. Nous pouvons retirer un message cl\u00e9 de chaque contribution :<\/span>[\/vc_column_text][vc_column_text]<b>Groupe de travail I : <\/b><span style=\"font-weight: 400;\">il est sans \u00e9quivoque que l\u2019influence humaine a r\u00e9chauff\u00e9 l\u2019atmosph\u00e8re, l\u2019oc\u00e9an et les terres.<\/span>[\/vc_column_text][vc_column_text]<b>Groupe de travail II :<\/b><span style=\"font-weight: 400;\">le changement climatique d\u2019origine humaine, dont des ph\u00e9nom\u00e8nes extr\u00eames plus intenses et fr\u00e9quents, a entra\u00een\u00e9 des r\u00e9percussions n\u00e9fastes et g\u00e9n\u00e9ralis\u00e9es, qui s\u2019accompagnent de pertes et dommages pour la nature et les humains et qui d\u00e9passent la variabilit\u00e9 naturelle du climat.<\/span>[\/vc_column_text][vc_column_text]<b>Groupe de travail III : <\/b><span style=\"font-weight: 400;\">les \u00e9missions nettes totales de gaz \u00e0 effet de serre anthropog\u00e9niques ont continu\u00e9 de cro\u00eetre sur la p\u00e9riode 2010-2019, tout comme les \u00e9missions nettes cumul\u00e9es de CO2 depuis 1850. (Par \u00ab nettes \u00bb, le GIEC entend les \u00e9missions issues de toutes les sources anthropog\u00e9niques, comme les centrales au gaz, moins le CO2 \u00e9limin\u00e9 par les puits de carbone anthropog\u00e9niques, comme les arbres plant\u00e9s.)<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Bien que ses \u00e9valuations d\u00e9crivent des projections de l\u2019\u00e9volution du changement climatique bas\u00e9es sur diff\u00e9rents sc\u00e9narios, les risques qu\u2019il pr\u00e9sente et les implications des diff\u00e9rentes possibilit\u00e9s de r\u00e9ponse, le GIEC souligne bien qu\u2019il ne recommande aucune prise de mesure aux d\u00e9cideurs. Ainsi, les \u00e9valuations sont pertinentes sur le plan politique, et non prescriptrices : le GIEC renseigne les gouvernements sur les <\/span><i><span style=\"font-weight: 400;\">moyens <\/span><\/i><span style=\"font-weight: 400;\">moyens de lutter contre le changement climatique, mais<\/span><i><span style=\"font-weight: 400;\">il n\u2019\u00e9met pas <\/span><\/i><span style=\"font-weight: 400;\">de recommandations. . <\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Par exemple, l\u2019une des conclusions cl\u00e9s du Rapport sp\u00e9cial sur les cons\u00e9quences d\u2019un r\u00e9chauffement plan\u00e9taire de 1,5 \u00b0C est qu\u2019au rythme actuel, le r\u00e9chauffement atteindra la limite de 1,5 \u00b0C entre 2030 et le d\u00e9but des ann\u00e9es 2050. Le GIEC n\u2019indique en aucun cas qu\u2019il est intelligent ou n\u00e9cessaire d\u2019\u00e9viter cette issue, mais les pays signataires de l\u2019Accord de Paris ont convenu de cette limite. Le GIEC repr\u00e9sente toutes les trajectoires possibles sur le plan physique pour atteindre l\u2019objectif de 1,5 \u00b0C, ainsi que les mesures, les avantages et les co\u00fbts qu\u2019elles induisent, mais il n\u2019en favorise aucune. Le choix incombera aux gouvernements des pays.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;3%&#8221; left_padding_desktop=&#8221;6%&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]\n<h2>Qui r\u00e9dige les rapports du GIEC ?<\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;3%&#8221; left_padding_desktop=&#8221;18%&#8221; constrain_group_2=&#8221;yes&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][image_with_animation image_url=&#8221;1787&#8243; image_size=&#8221;full&#8221; animation_type=&#8221;entrance&#8221; animation=&#8221;None&#8221; animation_movement_type=&#8221;transform_y&#8221; hover_animation=&#8221;none&#8221; alignment=&#8221;&#8221; border_radius=&#8221;none&#8221; box_shadow=&#8221;none&#8221; image_loading=&#8221;default&#8221; max_width=&#8221;100%&#8221; max_width_mobile=&#8221;default&#8221;][divider line_type=&#8221;No Line&#8221; custom_height=&#8221;10&#8243;][vc_column_text]Melissa Walsh \/ IPCC[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;6%&#8221; left_padding_desktop=&#8221;40%&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]<span style=\"font-weight: 400;\">Pour chaque rapport, le GIEC lance un appel \u00e0 candidatures aupr\u00e8s des gouvernements et des organisations ayant le statut d\u2019observateur. Ils sont invit\u00e9s \u00e0 nommer leurs plus \u00e9minents scientifiques qui \u00e9tudient tous les aspects du syst\u00e8me climatique et de nos interactions avec celui-ci. Le GIEC s\u2019efforce ensuite de r\u00e9unir des \u00e9quipes d\u2019auteurs repr\u00e9sentatives de la diversit\u00e9 des points de vue et des qualifications scientifiques, aux comp\u00e9tences requises pour l\u2019\u00e9valuation exhaustive de la litt\u00e9rature scientifique.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Il vise \u00e0 r\u00e9unir des personnes provenant de diverses r\u00e9gions du monde, issues \u00e0 parts \u00e9gales de pays d\u00e9velopp\u00e9s et de pays en d\u00e9veloppement. Le but est de garantir que le texte final ne favorise aucune r\u00e9gion et tient compte de toutes les probl\u00e9matiques locales. Le GIEC encourage \u00e9galement les jeunes scientifiques et ceux qui n\u2019ont pas l\u2019habitude de travailler sur ses rapports d\u2019y participer, en endossant les r\u00f4les ad\u00e9quats. Ainsi, il s\u2019assure que les \u00e9quipes d\u2019auteurs transmettent leurs connaissances et leur exp\u00e9rience, mais aussi que la prise de d\u00e9cisions s\u2019appuie toujours sur les meilleures preuves scientifiques disponibles.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Les chercheurs s\u00e9lectionn\u00e9s par le GIEC deviennent auteurs coordonnateurs principaux, auteurs principaux et \u00e9diteurs-r\u00e9viseurs pour diff\u00e9rents chapitres du rapport d\u2019\u00e9valuation. Le GIEC recrute aussi d\u2019autres experts en qualit\u00e9 d\u2019auteurs collaborateurs pour des questions sp\u00e9cifiques au sein d\u2019un chapitre. Tous ces scientifiques s\u2019impliquent \u00e0 titre b\u00e9n\u00e9vole et respectent une politique stricte en mati\u00e8re de conflits d\u2019int\u00e9r\u00eats \u00e9tablie par le GIEC. <\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;3%&#8221; left_padding_desktop=&#8221;6%&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]\n<h2>Quelles sont les sources utilis\u00e9es pour les rapports ?<\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;6%&#8221; left_padding_desktop=&#8221;40%&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]<span style=\"font-weight: 400;\">Le GIEC n\u2019effectue pas ses propres recherches. C\u2019est-\u00e0-dire qu\u2019il ne fait pas d\u2019exp\u00e9riences et ne collecte pas de donn\u00e9es sur la m\u00e9t\u00e9o ou le climat. Son r\u00f4le consiste \u00e0 \u00e9valuer et synth\u00e9tiser les travaux de recherche publi\u00e9s dans les revues scientifiques, qui ont d\u00e9j\u00e0 \u00e9t\u00e9 v\u00e9rifi\u00e9s par des pairs, des rapports \u00e9tablis par les gouvernements, les institutions de recherche et de l\u2019industrie, les organisations, notamment internationales, ou encore des actes de colloque. <\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">La qualit\u00e9 et la validit\u00e9 de ces sources font l\u2019objet d\u2019une \u00e9valuation attentive par les \u00e9quipes des chapitres. Les r\u00e9viseurs experts peuvent demander des copies de tout document non disponible au public pour examiner minutieusement les sources de donn\u00e9es. Les \u00e9diteurs-r\u00e9viseurs veillent \u00e0 ce que toutes les observations soumises lors des deux r\u00e9visions soient prises en compte et que leur auteur re\u00e7oive une r\u00e9ponse \u00e9crite. Par exemple, tout le monde peut voir en lisant le dernier rapport du Groupe de travail I que sa deuxi\u00e8me version a donn\u00e9 lieu \u00e0 plus de 51 000 observations et r\u00e9ponses.<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Comme le GIEC n\u2019effectue pas ses propres recherches, les auteurs de toutes les informations et donn\u00e9es utilis\u00e9es dans ses rapports sont indiqu\u00e9s. \u00c0 la fin de chaque chapitre figurent les citations enti\u00e8res \u00e0 titre de sources. De plus, si les auteurs synth\u00e9tisent plusieurs sources pour donner un aper\u00e7u plus large, produire un graphique explicatif ou pour une t\u00e2che semblable, ils expliquent la proc\u00e9dure suivie en l\u00e9gende ou note de bas de page par souci de transparence entre les r\u00e9viseurs et les lecteurs.<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;3%&#8221; left_padding_desktop=&#8221;18%&#8221; constrain_group_2=&#8221;yes&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text]\n<h2 style=\"text-align: center;\">Ressources utiles<\/h2>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;6%&#8221; left_padding_desktop=&#8221;18%&#8221; constrain_group_2=&#8221;yes&#8221; right_padding_desktop=&#8221;18%&#8221; left_padding_tablet=&#8221;0&#8243; constrain_group_4=&#8221;yes&#8221; right_padding_tablet=&#8221;0&#8243; left_padding_phone=&#8221;0&#8243; right_padding_phone=&#8221;0&#8243; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; gradient_type=&#8221;default&#8221; shape_type=&#8221;&#8221;][vc_column column_padding=&#8221;no-extra-padding&#8221; column_padding_tablet=&#8221;inherit&#8221; column_padding_phone=&#8221;inherit&#8221; column_padding_position=&#8221;all&#8221; column_element_direction_desktop=&#8221;default&#8221; column_element_spacing=&#8221;default&#8221; desktop_text_alignment=&#8221;default&#8221; tablet_text_alignment=&#8221;default&#8221; phone_text_alignment=&#8221;default&#8221; background_color_opacity=&#8221;1&#8243; background_hover_color_opacity=&#8221;1&#8243; column_backdrop_filter=&#8221;none&#8221; column_shadow=&#8221;none&#8221; column_border_radius=&#8221;none&#8221; column_link_target=&#8221;_self&#8221; column_position=&#8221;default&#8221; gradient_direction=&#8221;left_to_right&#8221; overlay_strength=&#8221;0.3&#8243; width=&#8221;1\/1&#8243; tablet_width_inherit=&#8221;default&#8221; animation_type=&#8221;default&#8221; bg_image_animation=&#8221;none&#8221; border_type=&#8221;simple&#8221; column_border_width=&#8221;none&#8221; column_border_style=&#8221;solid&#8221;][vc_column_text el_class=&#8221;bullets&#8211;asterisk&#8221;]\n<ul>\n<li>Fiches d\u2019information officielles sur le <strong><a href=\"https:\/\/www.ipcc.ch\/about\/\" target=\"_blank\" rel=\"noopener\">site du GIEC<\/a><\/strong>.<\/li>\n<li>Dans <strong><a href=\"https:\/\/theconversation.com\/top-climate-scientist-i-put-myself-through-hell-as-an-ipcc-convening-lead-author-but-it-was-worth-it-121855\" target=\"_blank\" rel=\"noopener\">ce blog de The Conversion, <\/a><\/strong> un auteur principal du GIEC d\u00e9crit le processus d\u2019approbation des r\u00e9sum\u00e9s des rapports et son ressenti \u00e0 l\u2019issue de l\u2019exp\u00e9rience.<\/li>\n<li>Debra Roberts, copr\u00e9sidente du Groupe de travail II du GIEC explique comment les rapports renseignent les gouvernements dans une <strong><a href=\"https:\/\/youtu.be\/9YRFQlkBmtg\" target=\"_blank\" rel=\"noopener\">vid\u00e9o YouTube d\u2019une minute<\/a><\/strong> (en anglais).<\/li>\n<li>ClimateAdam, youtubeur et docteur en physique de l\u2019atmosph\u00e8re, explique l\u2019importance des rapports du GIEC dans une <strong><a href=\"https:\/\/youtu.be\/yWYz0u-gG8Q\" target=\"_blank\" rel=\"noopener\">vid\u00e9o de 10 minutes<\/a><\/strong> (en anglais).<\/li>\n<li><strong><a href=\"https:\/\/vimeo.com\/224071262\" target=\"_blank\" rel=\"noopener\">Vid\u00e9o d&#8217;explication anim\u00e9e de l&#8217;OMM <\/a><\/strong> sur le GIEC.<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=&#8221;in_container&#8221; full_screen_row_position=&#8221;middle&#8221; column_margin=&#8221;default&#8221; column_direction=&#8221;default&#8221; column_direction_tablet=&#8221;default&#8221; column_direction_phone=&#8221;default&#8221; scene_position=&#8221;center&#8221; bottom_padding=&#8221;3%&#8221; constrain_group_2=&#8221;yes&#8221; constrain_group_4=&#8221;yes&#8221; constrain_group_6=&#8221;yes&#8221; text_color=&#8221;dark&#8221; text_align=&#8221;left&#8221; row_border_radius=&#8221;none&#8221; row_border_radius_applies=&#8221;bg&#8221; overflow=&#8221;visible&#8221; overlay_strength=&#8221;0.3&#8243; gradient_direction=&#8221;left_to_right&#8221; shape_divider_position=&#8221;bottom&#8221; bg_image_animation=&#8221;none&#8221; 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