[et_pb_section fb_built=”1″ _builder_version=”4.16″ custom_margin_tablet=”” custom_margin_phone=”” custom_margin_last_edited=”on|desktop” custom_padding=”||||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ max_width=”800px” module_alignment=”center” custom_margin_tablet=”” custom_margin_phone=”” custom_margin_last_edited=”on|phone” use_custom_width=”on” custom_width_px=”800px” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/alpinemag.fr\/wp-content\/uploads\/2017\/10\/EDITO.png” align=”center” show_bottom_space_tablet=”” show_bottom_space_phone=”” show_bottom_space_last_edited=”on|phone” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” _builder_version=”4.16″ max_width=”35%” module_alignment=”center” custom_margin=”||||false|false” custom_margin_tablet=”” custom_margin_phone=”0px||0px” custom_margin_last_edited=”on|desktop” custom_padding=”0px||” border_style=”solid” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.17.3″ text_font_size=”16px” header_text_align=”center” background_color=”#ffffff” text_orientation=”justified” module_alignment=”left” custom_padding=”0px|30px|30px|30px||” z_index_tablet=”500″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n
O<\/span>n Sunday, July 3, at nearly 3300 meters, the rupture of a glacier section, on the Marmolada (3343 m), in the Dolomites, swept away the normal route of this very popular summit, six people paying with their lives for their humble ascent project. Tons of ice blocks came crashing down, passing a few hundred meters from the refuge below, but also huge quantities of liquid.<\/p>\n Because of the abnormally high temperatures, the presence of quantities of water under the glacier (or in intermediate layers), and the increase in pressure in crevasses filled with water would be at the origin of this dramatic event (1), of which the “extremely arid” winter that the Dolomites have known (2) is one of the causes. The first of these is global warming.<\/p>\n [\/et_pb_text][et_pb_video src=”https:\/\/alpinemag.fr\/wp-content\/uploads\/2022\/07\/marmoladaMP4.mp4″ _builder_version=”4.17.3″ _module_preset=”default” width=”65%” module_alignment=”center” global_colors_info=”{}”][\/et_pb_video][et_pb_text _builder_version=”4.17.3″ text_font=”Merriweather|900|||||||” text_font_size=”16″ custom_margin=”||||false|false” border_style=”solid” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n Video : Twitter<\/a><\/p>\n [\/et_pb_text][et_pb_text _builder_version=”4.17.3″ text_font_size=”16px” header_text_align=”center” background_color=”#ffffff” text_orientation=”justified” module_alignment=”left” custom_padding=”30px|30px|30px|30px” z_index_tablet=”500″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n Contrary to what some media have written, this is not a serac rupture. It is a glacier that is fracturing, and literally cutting in two. Yes, now there is a serac, a gaping mouth of ice, and every reason to believe that the rest of the glacier will collapse one day or another (the area is now off limits).<\/p>\n Comparing with the pictures of the Marmolada before the catastrophe, the most striking thing is to have the impression of not seeing any objective risk. You know, those risks of falling rocks, seracs or snow (heavy in summer, often powdery in winter). As a mountaineer, I make a detour to avoid passing in front of a serac, for example. Even if it happens to me on the way down, like on the Weissmies, whose normal route full of unstable seracs was advised against for a while by the local authorities.<\/p>\n But how can you imagine going around a benign, harmless-looking glacier?<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ module_class=” et_pb_row_fullwidth” _builder_version=”4.16″ width=”89%” width_tablet=”80%” width_phone=”80%” width_last_edited=”on|desktop” max_width=”89%” max_width_tablet=”80%” max_width_phone=”80%” max_width_last_edited=”on|desktop” custom_margin=”||-25px|” make_fullwidth=”on” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/alpinemag.fr\/wp-content\/uploads\/2022\/07\/marmolada_avant_effondrement.jpg” title_text=”marmolada_avant_effondrement” show_bottom_space=”off” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.17.3″ custom_margin=”|-30px||” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.17.3″ text_font=”Merriweather|900|||||||” text_font_size=”16″ custom_margin=”||||false|false” border_style=”solid” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n Marmolada, 3343 m. A 2016 photo. Glacier collapsing zone and normal route. \u00a9CC-by-SA<\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/alpinemag.fr\/wp-content\/uploads\/2022\/07\/marmolada_effondrement-1.jpg” title_text=”marmolada_effondrement-1″ show_bottom_space=”off” align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.17.3″ custom_margin=”|||-4px” custom_padding=”|||” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.17.3″ text_font=”Merriweather|900|||||||” text_font_size=”16″ custom_margin=”||||false|false” border_style=”solid” saved_tabs=”all” global_colors_info=”{}”]<\/p>\n Marmolada, July 3th.\u00a0<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ max_width=”800px” module_alignment=”center” custom_margin_tablet=”” custom_margin_phone=”” custom_margin_last_edited=”on|phone” use_custom_width=”on” custom_width_px=”800px” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.17.3″ text_font_size=”16px” header_text_align=”center” background_color=”#ffffff” text_orientation=”justified” module_alignment=”left” custom_padding=”30px|30px|30px|30px” hover_enabled=”0″ z_index_tablet=”500″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n We must therefore look at debonair, seemingly innocuous glaciers, glaciers possibly hiding subglacial pockets, as a threat. No longer as an objective risk, but as a potential major risk, when, at the beginning of this summer 2022, the heat wave already hit. In the Mont Blanc massif, the pretty lakes that have appeared on the G\u00e9ant glacier, at an altitude of more than 3500 meters, have the beauty of an Amanita phalloides<\/em> mushroom.<\/p>\n In the Alps, the mountains now, at the beginning of July, look like we are in the end of August.<\/p>\n Let’s give ourselves the means to know more about glaciers and the evolution of high mountains.<\/p>\n Let’s support the scientists, IPCC and all the people who scan the mountains. Let’s doing something useful. As long as we can.<\/p>\n \n[\/et_pb_text][et_pb_divider _builder_version=”4.17.3″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_divider][et_pb_text _builder_version=”4.17.3″ text_font_size=”16px” header_text_align=”center” background_color=”#ffffff” text_orientation=”justified” module_alignment=”left” custom_padding=”30px|30px|30px|30px” z_index_tablet=”500″ text_text_shadow_horizontal_length_tablet=”0px” text_text_shadow_vertical_length_tablet=”0px” text_text_shadow_blur_strength_tablet=”1px” link_text_shadow_horizontal_length_tablet=”0px” link_text_shadow_vertical_length_tablet=”0px” link_text_shadow_blur_strength_tablet=”1px” ul_text_shadow_horizontal_length_tablet=”0px” ul_text_shadow_vertical_length_tablet=”0px” ul_text_shadow_blur_strength_tablet=”1px” ol_text_shadow_horizontal_length_tablet=”0px” ol_text_shadow_vertical_length_tablet=”0px” ol_text_shadow_blur_strength_tablet=”1px” quote_text_shadow_horizontal_length_tablet=”0px” quote_text_shadow_vertical_length_tablet=”0px” quote_text_shadow_blur_strength_tablet=”1px” header_text_shadow_horizontal_length_tablet=”0px” header_text_shadow_vertical_length_tablet=”0px” header_text_shadow_blur_strength_tablet=”1px” header_2_text_shadow_horizontal_length_tablet=”0px” header_2_text_shadow_vertical_length_tablet=”0px” header_2_text_shadow_blur_strength_tablet=”1px” header_3_text_shadow_horizontal_length_tablet=”0px” header_3_text_shadow_vertical_length_tablet=”0px” header_3_text_shadow_blur_strength_tablet=”1px” header_4_text_shadow_horizontal_length_tablet=”0px” header_4_text_shadow_vertical_length_tablet=”0px” header_4_text_shadow_blur_strength_tablet=”1px” header_5_text_shadow_horizontal_length_tablet=”0px” header_5_text_shadow_vertical_length_tablet=”0px” header_5_text_shadow_blur_strength_tablet=”1px” header_6_text_shadow_horizontal_length_tablet=”0px” header_6_text_shadow_vertical_length_tablet=”0px” header_6_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” global_colors_info=”{}”]<\/p>\n Notes<\/p>\n (1) Soci\u00e9t\u00e9 M\u00e9t\u00e9orologique Alpine Adriatique<\/a><\/p>\n (2) as said Massimo Frezzotti, University of Roma.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" On Sunday, July 3, at nearly 3300 meters, the rupture of a glacier section, on…<\/p>\n","protected":false},"author":24,"featured_media":57855,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"[et_pb_section fb_built=\"1\" _builder_version=\"4.16\" custom_margin_tablet=\"\" custom_margin_phone=\"\" custom_margin_last_edited=\"on|desktop\" custom_padding=\"||||false|false\" global_colors_info=\"{}\"][et_pb_row _builder_version=\"4.16\" max_width=\"800px\" module_alignment=\"center\" custom_margin_tablet=\"\" custom_margin_phone=\"\" custom_margin_last_edited=\"on|phone\" use_custom_width=\"on\" custom_width_px=\"800px\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.16\" custom_padding=\"|||\" global_colors_info=\"{}\" custom_padding__hover=\"|||\"][et_pb_image src=\"https:\/\/alpinemag.fr\/wp-content\/uploads\/2017\/10\/EDITO.png\" align=\"center\" show_bottom_space_tablet=\"\" show_bottom_space_phone=\"\" show_bottom_space_last_edited=\"on|phone\" align_tablet=\"center\" align_phone=\"\" align_last_edited=\"on|desktop\" _builder_version=\"4.16\" max_width=\"35%\" module_alignment=\"center\" custom_margin=\"||||false|false\" custom_margin_tablet=\"\" custom_margin_phone=\"0px||0px\" custom_margin_last_edited=\"on|desktop\" custom_padding=\"0px||\" border_style=\"solid\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text _builder_version=\"4.17.3\" text_font_size=\"16px\" header_text_align=\"center\" background_color=\"#ffffff\" text_orientation=\"justified\" module_alignment=\"left\" custom_padding=\"0px|30px|30px|30px||\" z_index_tablet=\"500\" text_text_shadow_horizontal_length_tablet=\"0px\" text_text_shadow_vertical_length_tablet=\"0px\" text_text_shadow_blur_strength_tablet=\"1px\" link_text_shadow_horizontal_length_tablet=\"0px\" link_text_shadow_vertical_length_tablet=\"0px\" link_text_shadow_blur_strength_tablet=\"1px\" ul_text_shadow_horizontal_length_tablet=\"0px\" ul_text_shadow_vertical_length_tablet=\"0px\" ul_text_shadow_blur_strength_tablet=\"1px\" ol_text_shadow_horizontal_length_tablet=\"0px\" ol_text_shadow_vertical_length_tablet=\"0px\" ol_text_shadow_blur_strength_tablet=\"1px\" quote_text_shadow_horizontal_length_tablet=\"0px\" quote_text_shadow_vertical_length_tablet=\"0px\" quote_text_shadow_blur_strength_tablet=\"1px\" header_text_shadow_horizontal_length_tablet=\"0px\" header_text_shadow_vertical_length_tablet=\"0px\" header_text_shadow_blur_strength_tablet=\"1px\" header_2_text_shadow_horizontal_length_tablet=\"0px\" header_2_text_shadow_vertical_length_tablet=\"0px\" header_2_text_shadow_blur_strength_tablet=\"1px\" header_3_text_shadow_horizontal_length_tablet=\"0px\" header_3_text_shadow_vertical_length_tablet=\"0px\" header_3_text_shadow_blur_strength_tablet=\"1px\" header_4_text_shadow_horizontal_length_tablet=\"0px\" header_4_text_shadow_vertical_length_tablet=\"0px\" header_4_text_shadow_blur_strength_tablet=\"1px\" header_5_text_shadow_horizontal_length_tablet=\"0px\" header_5_text_shadow_vertical_length_tablet=\"0px\" header_5_text_shadow_blur_strength_tablet=\"1px\" header_6_text_shadow_horizontal_length_tablet=\"0px\" header_6_text_shadow_vertical_length_tablet=\"0px\" header_6_text_shadow_blur_strength_tablet=\"1px\" box_shadow_horizontal_tablet=\"0px\" box_shadow_vertical_tablet=\"0px\" box_shadow_blur_tablet=\"40px\" box_shadow_spread_tablet=\"0px\" global_colors_info=\"{}\"]\n\n[dropcap size=big]P[\/dropcap]lein d\u2019humanit\u00e9 et de savoir, Haroun Tazieff a pass\u00e9 sa vie au bord de bouches de feu et de soufre, \u00e9tudiant les volcans en \u00e9ruption, parfois au p\u00e9ril de sa vie, pour mieux comprendre leur m\u00e9canisme apparemment impr\u00e9visible. Il en a tir\u00e9 des enseignements sur la pr\u00e9vention des risques, dit majeurs.\n\nDimanche 3 juillet, \u00e0 pr\u00e8s de 3300 m\u00e8tres, la rupture d\u2019un pan de glacier, sur la Marmolada (3343 m), dans les Dolomites, a balay\u00e9 la voie normale de ce sommet tr\u00e8s fr\u00e9quent\u00e9, six personnes payant de leur vie leur humble projet d'ascension. Un bilan provisoire. Des tonnes de blocs glace se sont pr\u00e9cipit\u00e9s avec fracas, passant \u00e0 quelques centaines de m\u00e8tres du refuge plus bas, mais aussi des quantit\u00e9s \u00e9normes de liquide.\n\n\u00c0 cause des temp\u00e9ratures anormalement \u00e9lev\u00e9es, la pr\u00e9sence de quantit\u00e9s d\u2019eau sous le glacier (ou dans des couches interm\u00e9diaires), et l\u2019augmentation de la pression dans des crevasses remplies d\u2019eau seraient \u00e0 l\u2019origine de cet \u00e9v\u00e9nement dramatique (1), dont l\u2019hiver \u00ab extr\u00eamement aride<\/i> \u00bb qu\u2019ont connu les Dolomites (2) est l'une des causes. La premi\u00e8re d'entre elle \u00e9tant le r\u00e9chauffement climatique.\n\n[\/et_pb_text][et_pb_video src=\"https:\/\/alpinemag.fr\/wp-content\/uploads\/2022\/07\/marmoladaMP4.mp4\" _builder_version=\"4.17.3\" _module_preset=\"default\" width=\"65%\" module_alignment=\"center\" global_colors_info=\"{}\"][\/et_pb_video][et_pb_text _builder_version=\"4.17.3\" text_font=\"Merriweather|900|||||||\" text_font_size=\"16\" custom_margin=\"||||false|false\" border_style=\"solid\" saved_tabs=\"all\" global_colors_info=\"{}\"]\n Source vid\u00e9o : Twitter<\/a><\/p>\n[\/et_pb_text][et_pb_text _builder_version=\"4.17.3\" text_font_size=\"16px\" header_text_align=\"center\" background_color=\"#ffffff\" text_orientation=\"justified\" module_alignment=\"left\" custom_padding=\"30px|30px|30px|30px\" hover_enabled=\"0\" z_index_tablet=\"500\" text_text_shadow_horizontal_length_tablet=\"0px\" text_text_shadow_vertical_length_tablet=\"0px\" text_text_shadow_blur_strength_tablet=\"1px\" link_text_shadow_horizontal_length_tablet=\"0px\" link_text_shadow_vertical_length_tablet=\"0px\" link_text_shadow_blur_strength_tablet=\"1px\" ul_text_shadow_horizontal_length_tablet=\"0px\" ul_text_shadow_vertical_length_tablet=\"0px\" ul_text_shadow_blur_strength_tablet=\"1px\" ol_text_shadow_horizontal_length_tablet=\"0px\" ol_text_shadow_vertical_length_tablet=\"0px\" ol_text_shadow_blur_strength_tablet=\"1px\" quote_text_shadow_horizontal_length_tablet=\"0px\" quote_text_shadow_vertical_length_tablet=\"0px\" quote_text_shadow_blur_strength_tablet=\"1px\" header_text_shadow_horizontal_length_tablet=\"0px\" header_text_shadow_vertical_length_tablet=\"0px\" header_text_shadow_blur_strength_tablet=\"1px\" header_2_text_shadow_horizontal_length_tablet=\"0px\" header_2_text_shadow_vertical_length_tablet=\"0px\" header_2_text_shadow_blur_strength_tablet=\"1px\" header_3_text_shadow_horizontal_length_tablet=\"0px\" header_3_text_shadow_vertical_length_tablet=\"0px\" header_3_text_shadow_blur_strength_tablet=\"1px\" header_4_text_shadow_horizontal_length_tablet=\"0px\" header_4_text_shadow_vertical_length_tablet=\"0px\" header_4_text_shadow_blur_strength_tablet=\"1px\" header_5_text_shadow_horizontal_length_tablet=\"0px\" header_5_text_shadow_vertical_length_tablet=\"0px\" header_5_text_shadow_blur_strength_tablet=\"1px\" header_6_text_shadow_horizontal_length_tablet=\"0px\" header_6_text_shadow_vertical_length_tablet=\"0px\" header_6_text_shadow_blur_strength_tablet=\"1px\" box_shadow_horizontal_tablet=\"0px\" box_shadow_vertical_tablet=\"0px\" box_shadow_blur_tablet=\"40px\" box_shadow_spread_tablet=\"0px\" global_colors_info=\"{}\" sticky_enabled=\"0\"]\n Contrairement \u00e0 ce que des m\u00e9dias nationaux ont \u00e9crit, ce n\u2019est pas une rupture de s\u00e9rac. C\u2019est un glacier qui se fracture, et qui, litt\u00e9ralement, se coupe en deux. Oui, maintenant, il y a un s\u00e9rac, une bouche b\u00e9ante de glace, et tout lieu de croire que le reste du glacier va s\u2019\u00e9crouler un jour ou l\u2019autre (le secteur est d\u00e9sormais interdit).<\/p>\n En comparant avec les photos de la Marmolada avant la catastrophe, le plus frappant est d\u2019avoir l\u2019impression de ne pas voir de risque objectif. Vous savez, ces risques de chutes de pierres, de s\u00e9rac ou de neige (lourde en \u00e9t\u00e9, souvent poudreuse en hiver). En tant qu\u2019alpiniste, je fais un d\u00e9tour pour ne pas passer \u00e0 l\u2019aplomb d\u2019un s\u00e9rac, par exemple. M\u00eame si \u00e0 la descente cela m\u2019arrive, comme sur le Weissmies<\/a>, dont la voie normale farcie de s\u00e9racs instables a \u00e9t\u00e9 d\u00e9conseill\u00e9e un temps par les autorit\u00e9s locales. <\/span><\/p>\n Mais comment imaginer contourner un glacier d\u00e9bonnaire, d'aspect inoffensif ?<\/span><\/p>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\"1_2,1_2\" module_class=\" et_pb_row_fullwidth\" _builder_version=\"4.16\" width=\"89%\" width_tablet=\"80%\" width_phone=\"80%\" width_last_edited=\"on|desktop\" max_width=\"89%\" max_width_tablet=\"80%\" max_width_phone=\"80%\" max_width_last_edited=\"on|desktop\" custom_margin=\"||-25px|\" make_fullwidth=\"on\" global_colors_info=\"{}\"][et_pb_column type=\"1_2\" _builder_version=\"4.16\" custom_padding=\"|||\" global_colors_info=\"{}\" custom_padding__hover=\"|||\"][et_pb_image src=\"https:\/\/alpinemag.fr\/wp-content\/uploads\/2022\/07\/marmolada_avant_effondrement.jpg\" title_text=\"marmolada_avant_effondrement\" show_bottom_space=\"off\" align_tablet=\"center\" align_phone=\"center\" align_last_edited=\"on|desktop\" _builder_version=\"4.17.3\" custom_margin=\"|-30px||\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text _builder_version=\"4.17.3\" text_font=\"Merriweather|900|||||||\" text_font_size=\"16\" custom_margin=\"||||false|false\" border_style=\"solid\" saved_tabs=\"all\" global_colors_info=\"{}\"]\n\nMarmolada, 3343 m. Photo de 2016. La zone du glacier qui s'est effondr\u00e9e, et le trac\u00e9 de la voie normale. \u00a9CC-by-SA\n\n[\/et_pb_text][\/et_pb_column][et_pb_column type=\"1_2\" _builder_version=\"4.16\" custom_padding=\"|||\" global_colors_info=\"{}\" custom_padding__hover=\"|||\"][et_pb_image src=\"https:\/\/alpinemag.fr\/wp-content\/uploads\/2022\/07\/marmolada_effondrement-1.jpg\" title_text=\"marmolada_effondrement-1\" show_bottom_space=\"off\" align_tablet=\"center\" align_phone=\"center\" align_last_edited=\"on|desktop\" _builder_version=\"4.17.3\" custom_margin=\"|||-4px\" custom_padding=\"|||\" global_colors_info=\"{}\"][\/et_pb_image][et_pb_text _builder_version=\"4.17.3\" text_font=\"Merriweather|900|||||||\" text_font_size=\"16\" custom_margin=\"||||false|false\" border_style=\"solid\" saved_tabs=\"all\" global_colors_info=\"{}\"]\n\nMarmolada, le 3 juillet. Le glacier effondr\u00e9. \u00a9Secours italien\n\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\"4.16\" max_width=\"800px\" module_alignment=\"center\" custom_margin_tablet=\"\" custom_margin_phone=\"\" custom_margin_last_edited=\"on|phone\" use_custom_width=\"on\" custom_width_px=\"800px\" global_colors_info=\"{}\"][et_pb_column type=\"4_4\" _builder_version=\"4.16\" custom_padding=\"|||\" global_colors_info=\"{}\" custom_padding__hover=\"|||\"][et_pb_text _builder_version=\"4.17.3\" text_font_size=\"16px\" header_text_align=\"center\" background_color=\"#ffffff\" text_orientation=\"justified\" module_alignment=\"left\" custom_padding=\"30px|30px|30px|30px\" z_index_tablet=\"500\" text_text_shadow_horizontal_length_tablet=\"0px\" text_text_shadow_vertical_length_tablet=\"0px\" text_text_shadow_blur_strength_tablet=\"1px\" link_text_shadow_horizontal_length_tablet=\"0px\" link_text_shadow_vertical_length_tablet=\"0px\" link_text_shadow_blur_strength_tablet=\"1px\" ul_text_shadow_horizontal_length_tablet=\"0px\" ul_text_shadow_vertical_length_tablet=\"0px\" ul_text_shadow_blur_strength_tablet=\"1px\" ol_text_shadow_horizontal_length_tablet=\"0px\" ol_text_shadow_vertical_length_tablet=\"0px\" ol_text_shadow_blur_strength_tablet=\"1px\" quote_text_shadow_horizontal_length_tablet=\"0px\" quote_text_shadow_vertical_length_tablet=\"0px\" quote_text_shadow_blur_strength_tablet=\"1px\" header_text_shadow_horizontal_length_tablet=\"0px\" header_text_shadow_vertical_length_tablet=\"0px\" header_text_shadow_blur_strength_tablet=\"1px\" header_2_text_shadow_horizontal_length_tablet=\"0px\" header_2_text_shadow_vertical_length_tablet=\"0px\" header_2_text_shadow_blur_strength_tablet=\"1px\" header_3_text_shadow_horizontal_length_tablet=\"0px\" header_3_text_shadow_vertical_length_tablet=\"0px\" header_3_text_shadow_blur_strength_tablet=\"1px\" header_4_text_shadow_horizontal_length_tablet=\"0px\" header_4_text_shadow_vertical_length_tablet=\"0px\" header_4_text_shadow_blur_strength_tablet=\"1px\" header_5_text_shadow_horizontal_length_tablet=\"0px\" header_5_text_shadow_vertical_length_tablet=\"0px\" header_5_text_shadow_blur_strength_tablet=\"1px\" header_6_text_shadow_horizontal_length_tablet=\"0px\" header_6_text_shadow_vertical_length_tablet=\"0px\" header_6_text_shadow_blur_strength_tablet=\"1px\" box_shadow_horizontal_tablet=\"0px\" box_shadow_vertical_tablet=\"0px\" box_shadow_blur_tablet=\"40px\" box_shadow_spread_tablet=\"0px\" global_colors_info=\"{}\"]\n \u00ab La d\u00e9finition que je donne du risque majeur, c'est la menace sur l'homme et son environnement direct, sur ses installations, la menace dont la gravit\u00e9 est telle que la soci\u00e9t\u00e9 se trouve absolument d\u00e9pass\u00e9e par l'immensit\u00e9 du d\u00e9sastre<\/i> \u00bb, a dit Haroun Tazieff (3), qui en connaissait un rayon sur les volcans capables de rayer une ville ou une \u00eele, de la carte.<\/p>\n Il nous faut donc regarder des glaciers d\u2019apparence anodine, des glaciers cachant \u00e9ventuellement des poches sous-glaciaires<\/a>, comme une menace. Non plus comme un risque objectif, mais un potentiel risque majeur, quand, au d\u00e9but de cet \u00e9t\u00e9 2022, la canicule d\u00e9j\u00e0 frapp\u00e9. Les jolis lacs apparus sur le glacier du G\u00e9ant, \u00e0 plus de 3500 m\u00e8tres d\u2019altitude, ont la beaut\u00e9 d\u2019une amanite phallo\u00efde. En Oisans, les montagnes de d\u00e9but juillet ont la t\u00eate d'une fin ao\u00fbt.<\/p>\n En droit, il y a p\u00e9ril en la demeure quand il y a urgence. Quand il y a danger \u00e0 ne pas agir. La demeure n\u2019est pas la montagne (ou la maison qui br\u00fble<\/em> du roi fain\u00e9ant, Chirac), mais le fait de demeurer<\/i> statique, de ne rien faire. Donnons-nous les moyens d\u2019en savoir plus sur les glaciers et l'\u00e9volution des hautes montagnes. Soutenons les scientifiques. Tant que nous pouvons.<\/p>\n \n[\/et_pb_text][et_pb_divider _builder_version=\"4.17.3\" _module_preset=\"default\" global_colors_info=\"{}\"][\/et_pb_divider][et_pb_text _builder_version=\"4.17.3\" text_font_size=\"16px\" header_text_align=\"center\" background_color=\"#ffffff\" text_orientation=\"justified\" module_alignment=\"left\" custom_padding=\"30px|30px|30px|30px\" z_index_tablet=\"500\" text_text_shadow_horizontal_length_tablet=\"0px\" text_text_shadow_vertical_length_tablet=\"0px\" text_text_shadow_blur_strength_tablet=\"1px\" link_text_shadow_horizontal_length_tablet=\"0px\" link_text_shadow_vertical_length_tablet=\"0px\" link_text_shadow_blur_strength_tablet=\"1px\" ul_text_shadow_horizontal_length_tablet=\"0px\" ul_text_shadow_vertical_length_tablet=\"0px\" ul_text_shadow_blur_strength_tablet=\"1px\" ol_text_shadow_horizontal_length_tablet=\"0px\" ol_text_shadow_vertical_length_tablet=\"0px\" ol_text_shadow_blur_strength_tablet=\"1px\" quote_text_shadow_horizontal_length_tablet=\"0px\" quote_text_shadow_vertical_length_tablet=\"0px\" quote_text_shadow_blur_strength_tablet=\"1px\" header_text_shadow_horizontal_length_tablet=\"0px\" header_text_shadow_vertical_length_tablet=\"0px\" header_text_shadow_blur_strength_tablet=\"1px\" header_2_text_shadow_horizontal_length_tablet=\"0px\" header_2_text_shadow_vertical_length_tablet=\"0px\" header_2_text_shadow_blur_strength_tablet=\"1px\" header_3_text_shadow_horizontal_length_tablet=\"0px\" header_3_text_shadow_vertical_length_tablet=\"0px\" header_3_text_shadow_blur_strength_tablet=\"1px\" header_4_text_shadow_horizontal_length_tablet=\"0px\" header_4_text_shadow_vertical_length_tablet=\"0px\" header_4_text_shadow_blur_strength_tablet=\"1px\" header_5_text_shadow_horizontal_length_tablet=\"0px\" header_5_text_shadow_vertical_length_tablet=\"0px\" header_5_text_shadow_blur_strength_tablet=\"1px\" header_6_text_shadow_horizontal_length_tablet=\"0px\" header_6_text_shadow_vertical_length_tablet=\"0px\" header_6_text_shadow_blur_strength_tablet=\"1px\" box_shadow_horizontal_tablet=\"0px\" box_shadow_vertical_tablet=\"0px\" box_shadow_blur_tablet=\"40px\" box_shadow_spread_tablet=\"0px\" global_colors_info=\"{}\"]<\/p>\n Notes<\/p>\n (1) selon l'association italienne Soci\u00e9t\u00e9 M\u00e9t\u00e9orologique Alpine Adriatique<\/a>,<\/p>\n