{"id":28310,"date":"2026-07-09T08:00:01","date_gmt":"2026-07-09T06:00:01","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=28310"},"modified":"2026-07-09T08:24:29","modified_gmt":"2026-07-09T06:24:29","slug":"quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/","title":{"rendered":"Quand le Sahara \u00e9tait vert : l&rsquo;incroyable \u00e9poque o\u00f9 le plus grand d\u00e9sert du monde \u00e9tait une savane luxuriante"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p><strong>Quand le Sahara \u00e9tait vert : le temps oubli\u00e9 des lacs, des rivi\u00e8res et des savanes<\/strong><\/p>\n<p>Aujourd&rsquo;hui, le Sahara est le plus grand d\u00e9sert chaud de la plan\u00e8te. Il s&rsquo;\u00e9tend sur pr\u00e8s de 9 millions de kilom\u00e8tres carr\u00e9s \u00e0 travers l&rsquo;Afrique du Nord et offre des paysages domin\u00e9s par les dunes, les plateaux rocheux et les \u00e9tendues arides. Pourtant, il fut un temps o\u00f9 cette immense r\u00e9gion n&rsquo;avait rien d&rsquo;un d\u00e9sert. \u00c0 plusieurs reprises dans son histoire, le Sahara s&rsquo;est transform\u00e9 en un vaste territoire verdoyant parcouru de rivi\u00e8res, de lacs et de savanes peupl\u00e9es d&rsquo;animaux sauvages. Cette p\u00e9riode fascinante est connue sous le nom de \u00ab Sahara vert \u00bb ou \u00ab p\u00e9riode humide africaine \u00bb.<br \/>\n<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28313\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/afrique-sahara-epoque-verte-1\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Afrique Sahara epoque verte 1\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28313 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-1.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><br \/>\n<strong>Un Sahara m\u00e9connaissable<\/strong><\/p>\n<p>Il y a environ 14 500 ans, \u00e0 la fin de la derni\u00e8re p\u00e9riode glaciaire, le climat de l&rsquo;Afrique du Nord commen\u00e7a \u00e0 changer progressivement. Les pr\u00e9cipitations augment\u00e8rent consid\u00e9rablement dans des r\u00e9gions qui sont aujourd&rsquo;hui totalement d\u00e9sertiques.<\/p>\n<p>Le Sahara se couvrit alors de vastes prairies, de savanes et de zones bois\u00e9es. Des milliers de lacs apparurent dans des d\u00e9pressions naturelles. Certains \u00e9taient immenses et comparables \u00e0 de v\u00e9ritables mers int\u00e9rieures. Des rivi\u00e8res permanentes traversaient le d\u00e9sert et rejoignaient parfois le Nil ou l&rsquo;oc\u00e9an Atlantique.<\/p>\n<p>L\u00e0 o\u00f9 l&rsquo;on trouve aujourd&rsquo;hui des dunes de sable \u00e0 perte de vue vivaient des troupeaux d&rsquo;antilopes, de gazelles, de girafes, d&rsquo;\u00e9l\u00e9phants, de rhinoc\u00e9ros, d&rsquo;hippopotames et m\u00eame de crocodiles. Les paysages ressemblaient davantage \u00e0 certaines r\u00e9gions actuelles du Sahel ou de l&rsquo;Afrique de l&rsquo;Est qu&rsquo;au d\u00e9sert moderne.<\/p>\n<p><strong>Pourquoi le Sahara \u00e9tait-il vert ?<\/strong><\/p>\n<p>La principale explication est li\u00e9e aux variations naturelles de l&rsquo;orbite terrestre. La Terre n&rsquo;effectue pas toujours exactement les m\u00eames mouvements autour du Soleil. Son axe de rotation oscille lentement au cours du temps selon un ph\u00e9nom\u00e8ne appel\u00e9 pr\u00e9cession.<\/p>\n<p>Il y a environ 11 000 \u00e0 6 000 ans, cette configuration orbitale favorisait un ensoleillement plus important de l&rsquo;h\u00e9misph\u00e8re Nord pendant l&rsquo;\u00e9t\u00e9. Cette chaleur suppl\u00e9mentaire renfor\u00e7ait consid\u00e9rablement la mousson africaine.<\/p>\n<p>Les masses d&rsquo;air humides provenant de l&rsquo;oc\u00e9an Atlantique et de l&rsquo;oc\u00e9an Indien remontaient beaucoup plus au nord qu&rsquo;aujourd&rsquo;hui. Les pluies saisonni\u00e8res arrosaient alors une grande partie du Sahara.<\/p>\n<p>La v\u00e9g\u00e9tation qui se d\u00e9veloppait gr\u00e2ce \u00e0 ces pr\u00e9cipitations amplifiait encore le ph\u00e9nom\u00e8ne. Les plantes retenaient davantage l&rsquo;humidit\u00e9 dans les sols et r\u00e9duisaient la r\u00e9flexion de la lumi\u00e8re solaire. Ce cercle vertueux favorisait le maintien d&rsquo;un climat humide sur de vastes territoires.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28315\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/afrique-sahara-epoque-verte-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Afrique Sahara epoque verte 2\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28315 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-2.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Une r\u00e9gion riche en eau<\/strong><\/p>\n<p>Les scientifiques ont retrouv\u00e9 de nombreuses preuves de cette \u00e9poque humide. Des images satellites r\u00e9v\u00e8lent l&rsquo;existence d&rsquo;anciens r\u00e9seaux fluviaux enfouis sous les sables. Des fonds de lacs ass\u00e9ch\u00e9s sont visibles dans plusieurs r\u00e9gions du Sahara.<\/p>\n<p>Dans le nord du Tchad existait notamment le gigantesque lac M\u00e9ga-Tchad. \u00c0 certaines p\u00e9riodes, sa superficie d\u00e9passait largement celle de la mer Caspienne actuelle. Il occupait plusieurs centaines de milliers de kilom\u00e8tres carr\u00e9s et constituait l&rsquo;un des plus grands lacs de la plan\u00e8te.<\/p>\n<p>Des fossiles de poissons, de crocodiles et d&rsquo;hippopotames ont \u00e9galement \u00e9t\u00e9 d\u00e9couverts dans des zones aujourd&rsquo;hui totalement d\u00e9sertiques. Ces d\u00e9couvertes confirment l&rsquo;existence d&rsquo;\u00e9cosyst\u00e8mes aquatiques prosp\u00e8res dans des r\u00e9gions o\u00f9 il ne tombe parfois que quelques millim\u00e8tres de pluie par an.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28318\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/afrique-sahara-epoque-verte-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Afrique Sahara epoque verte 4\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28318 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-4.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Les premiers habitants du Sahara vert<\/strong><\/p>\n<p>Cette abondance d&rsquo;eau et de v\u00e9g\u00e9tation attira \u00e9galement les populations humaines. Des groupes de chasseurs-cueilleurs puis d&rsquo;\u00e9leveurs s&rsquo;install\u00e8rent dans ces territoires accueillants.<\/p>\n<p>Les arch\u00e9ologues ont retrouv\u00e9 des outils, des poteries, des s\u00e9pultures et des peintures rupestres qui t\u00e9moignent d&rsquo;une pr\u00e9sence humaine importante. Les c\u00e9l\u00e8bres peintures du massif du Tassili n&rsquo;Ajjer, en Alg\u00e9rie, montrent des sc\u00e8nes de chasse, des troupeaux de bovins, des girafes et m\u00eame des personnages nageant dans l&rsquo;eau.<\/p>\n<p>Ces repr\u00e9sentations constituent une preuve exceptionnelle que le Sahara \u00e9tait alors bien diff\u00e9rent de celui que nous connaissons aujourd&rsquo;hui.<\/p>\n<p>Certaines communaut\u00e9s pratiquaient d\u00e9j\u00e0 l&rsquo;\u00e9levage du b\u00e9tail il y a plusieurs milliers d&rsquo;ann\u00e9es. Les lacs et les prairies leur offraient des conditions favorables pour d\u00e9velopper leurs activit\u00e9s.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28321\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/afrique-sahara-epoque-verte-humains\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Afrique Sahara epoque verte humains\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28321 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Quand le d\u00e9sert est-il revenu ?<\/strong><\/p>\n<p>La p\u00e9riode humide africaine atteignit son apog\u00e9e entre environ 9 000 et 6 000 ans avant notre \u00e9poque.<\/p>\n<p>Puis, progressivement, les param\u00e8tres orbitaux de la Terre continu\u00e8rent d&rsquo;\u00e9voluer. La mousson africaine commen\u00e7a \u00e0 perdre de son intensit\u00e9. Les pr\u00e9cipitations diminu\u00e8rent lentement.<\/p>\n<p>Pendant plusieurs si\u00e8cles, les lacs r\u00e9tr\u00e9cirent, les rivi\u00e8res disparurent et la v\u00e9g\u00e9tation recula vers le sud. Les populations humaines durent s&rsquo;adapter \u00e0 cette transformation progressive de leur environnement.<\/p>\n<p>Vers 5 500 \u00e0 4 000 ans avant notre \u00e9poque, une grande partie du Sahara avait retrouv\u00e9 son caract\u00e8re d\u00e9sertique. Les habitants migr\u00e8rent alors vers des r\u00e9gions plus favorables, notamment la vall\u00e9e du Nil o\u00f9 se d\u00e9velopperaient plus tard les grandes civilisations de l&rsquo;\u00c9gypte antique.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28316\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/afrique-sahara-epoque-verte\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Afrique Sahara epoque verte\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28316 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Le Sahara pourrait-il redevenir vert ?<\/strong><\/p>\n<p>Les cycles astronomiques responsables du Sahara vert continuent encore aujourd&rsquo;hui. Th\u00e9oriquement, dans plusieurs milliers d&rsquo;ann\u00e9es, de nouvelles conditions pourraient favoriser un retour partiel des pluies sur certaines zones d\u00e9sertiques.<\/p>\n<p>Cependant, les scientifiques soulignent que les changements climatiques actuels provoqu\u00e9s par les activit\u00e9s humaines compliquent les pr\u00e9visions \u00e0 tr\u00e8s long terme. Les m\u00e9canismes naturels qui ont cr\u00e9\u00e9 le Sahara vert dans le pass\u00e9 agissent sur des dizaines de milliers d&rsquo;ann\u00e9es et ne sont pas directement comparables aux \u00e9volutions observ\u00e9es aujourd&rsquo;hui.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28317\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/afrique-sahara-epoque-verte-3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Afrique Sahara epoque verte 3\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28317 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-3.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>Un d\u00e9sert qui cache encore son pass\u00e9<\/strong><\/p>\n<p>Sous les dunes du Sahara se cache l&rsquo;histoire d&rsquo;un monde disparu. Les traces de rivi\u00e8res ass\u00e9ch\u00e9es, les fossiles d&rsquo;animaux aquatiques et les peintures rupestres rappellent qu&rsquo;il n&rsquo;y a pas si longtemps, \u00e0 l&rsquo;\u00e9chelle g\u00e9ologique, le plus grand d\u00e9sert chaud du monde \u00e9tait une vaste r\u00e9gion fertile.<\/p>\n<p>Le Sahara vert demeure l&rsquo;un des exemples les plus spectaculaires des changements climatiques naturels que notre plan\u00e8te a connus. Il montre \u00e0 quel point les paysages que nous consid\u00e9rons comme immuables peuvent se transformer profond\u00e9ment au fil des mill\u00e9naires.<\/p>\n<p>L\u00e0 o\u00f9 soufflent aujourd&rsquo;hui les vents br\u00fblants du d\u00e9sert vivaient autrefois des hippopotames, des crocodiles et des troupeaux de girafes. Une r\u00e9alit\u00e9 qui semble presque incroyable, mais que la science continue de confirmer ann\u00e9e apr\u00e8s ann\u00e9e.<\/p>\n<p>Aujourd&rsquo;hui ces terres sont devenues du sable&#8230;<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"28325\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-vert-lincroyable-epoque-ou-le-plus-grand-desert-du-monde-etait-une-savane-luxuriante\/desert-sahara\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;,&quot;alt&quot;:&quot;&quot;}\" data-image-title=\"Desert Sahara\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?fit=800%2C533&amp;ssl=1\" class=\"aligncenter wp-image-28325 size-large\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=800%2C533&#038;ssl=1\" alt=\"\" width=\"800\" height=\"533\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=800%2C533&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=80%2C53&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=1226%2C817&amp;ssl=1 1226w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=928%2C619&amp;ssl=1 928w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?resize=480%2C320&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Desert-Sahara-.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\">Terra Projects&nbsp;<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"28310\">(6)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Quand le Sahara \u00e9tait vert : le temps oubli\u00e9 des lacs, des rivi\u00e8res et des savanes Aujourd&rsquo;hui, le Sahara est&#8230;<\/p>\n","protected":false},"author":1,"featured_media":28321,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33,20],"tags":[41,8345,333,3178,706,636,99],"class_list":["post-28310","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","category-climat","tag-climat","tag-configuration-orbitale","tag-eau","tag-lac","tag-rivieres","tag-sahara","tag-vert","wpcat-33-id","wpcat-20-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/06\/Afrique-Sahara-epoque-verte-humains-.jpg?fit=1536%2C1024&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-7mC","jetpack-related-posts":[{"id":22853,"url":"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-regorgeait-deau\/","url_meta":{"origin":28310,"position":0},"title":"Quand le Sahara regorgeait d&rsquo;eau","author":"Admin","date":"1 ao\u00fbt 2021","format":false,"excerpt":"Il y a de cela 10.000 \u00e0 11.000 ans, il pleuvait sur le Sahara. Ce qui est aujourd'hui le plus grand d\u00e9sert chaud du monde accueillait une v\u00e9g\u00e9tation riche, des lacs, une faune vari\u00e9e avec des \u00e9l\u00e9phants, des girafes... Nos anc\u00eatres ont habit\u00e9 ces savanes et for\u00eats sahariennes, vivant de\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":25445,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-desert-du-sahara-etait-autrefois-une-savane-verdoyante\/","url_meta":{"origin":28310,"position":1},"title":"Le d\u00e9sert du Sahara \u00e9tait autrefois une savane verdoyante","author":"Admin","date":"22 d\u00e9cembre 2023","format":false,"excerpt":"Le plateau alg\u00e9rien du Tassili N'Ajjer est le plus grand parc national d'Afrique. Parmi ses vastes formations de gr\u00e8s se trouve peut-\u00eatre le plus grand mus\u00e9e d'art du monde. Plus de 15 000 gravures et peintures y sont expos\u00e9es, dont certaines datent de 11 000 ans selon les techniques de\u2026","rel":"","context":"Dans &quot;Climat&quot;","block_context":{"text":"Climat","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/climat\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/08\/sahara-vert.jpg?fit=1000%2C667&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":14657,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-sahara-etait-vert-il-y-a-plus-de-6000-ans-et-avait-10-fois-plus-de-pluie-quaujourdhui\/","url_meta":{"origin":28310,"position":2},"title":"Le Sahara \u00e9tait \u00abvert\u00bb il y a plus de 6000 ans et avait 10 fois plus de pluie qu&rsquo;aujourd&rsquo;hui","author":"Admin","date":"6 f\u00e9vrier 2017","format":false,"excerpt":"Selon une nouvelle \u00e9tude publi\u00e9e r\u00e9cemment dans la revue Advances Sciencemag, il est prouv\u00e9 que les humains occupaient une grande partie du Sahara au cours de la \u00abp\u00e9riode humide\u00bb d'il y a environ 8000 ans. Gr\u00e2ce \u00e0 une analyse des s\u00e9diments marins, des chercheurs de l'Universit\u00e9 de l'Arizona ont \u00e9tabli\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/01\/vert-sahara-sphinx.jpg?fit=620%2C419&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/01\/vert-sahara-sphinx.jpg?fit=620%2C419&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/01\/vert-sahara-sphinx.jpg?fit=620%2C419&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":25255,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-etude-revele-pourquoi-et-quand-le-desert-du-sahara-est-devenu-vert\/","url_meta":{"origin":28310,"position":3},"title":"Une \u00e9tude r\u00e9v\u00e8le pourquoi et quand le d\u00e9sert du Sahara est devenu vert","author":"Admin","date":"17 octobre 2023","format":false,"excerpt":"Notre plan\u00e8te a beaucoup \u00e9volu\u00e9 au cours de milliards d'ann\u00e9es, de l'emplacement des continents \u00e0 la composition de l'atmosph\u00e8re. Une nouvelle \u00e9tude examine en d\u00e9tail l'histoire du d\u00e9sert du Sahara, qui n'a pas toujours \u00e9t\u00e9 une r\u00e9gion sauvage et aride. Des chercheurs finlandais et britanniques ont reconstitu\u00e9 les transformations p\u00e9riodiques\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/09\/desert-du-sahara.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":16123,"url":"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-rempli-dherbe-darbres-et-dhommes\/","url_meta":{"origin":28310,"position":4},"title":"Quand le Sahara \u00e9tait rempli d&rsquo;herbe, d&rsquo;arbres et d&rsquo;Hommes","author":"Admin","date":"23 d\u00e9cembre 2017","format":false,"excerpt":"Il n\u2019y a que 6\u2009000 ans \u2014 qui \u00e0 l\u2019\u00e9chelle de l\u2019histoire de la Terre est presque n\u00e9gligeable \u2014 de la pluie tombait en abondance sur le nord du continent africain. Oui, il fut un temps o\u00f9 de la v\u00e9g\u00e9tation digne des jungles tropicales dominait ces espaces, aujourd\u2019hui parmi les\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7740,"url":"https:\/\/www.laterredufutur.com\/accueil\/voila-4-900-ans-le-sahara-est-abruptement-passe-du-vert-au-jaune\/","url_meta":{"origin":28310,"position":5},"title":"Voil\u00e0 4.900 ans, le Sahara est abruptement pass\u00e9 du vert au jaune","author":"Admin","date":"18 ao\u00fbt 2015","format":false,"excerpt":"Le Sahara \u00e9tait couvert de prairies voici plus de 4.900 ans, durant la p\u00e9riode humide africaine. Des poussi\u00e8res emport\u00e9es par des vents, et d\u00e9pos\u00e9es dans l\u2019Atlantique, viennent de pr\u00e9ciser l\u2019histoire de cet \u00e9pisode marqu\u00e9 par d\u2019abrupts changements climatiques. Le nord de l\u2019Afrique \u00e9met chaque ann\u00e9e plus d\u2019un million de tonnes\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"pluie afrique","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2012\/05\/pluie-afrique.jpg?fit=940%2C705&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2012\/05\/pluie-afrique.jpg?fit=940%2C705&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2012\/05\/pluie-afrique.jpg?fit=940%2C705&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2012\/05\/pluie-afrique.jpg?fit=940%2C705&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/28310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=28310"}],"version-history":[{"count":10,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/28310\/revisions"}],"predecessor-version":[{"id":29424,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/28310\/revisions\/29424"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/28321"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=28310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=28310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=28310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}