{"id":16123,"date":"2017-12-23T20:00:27","date_gmt":"2017-12-23T19:00:27","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=16123"},"modified":"2017-12-13T19:59:08","modified_gmt":"2017-12-13T18:59:08","slug":"quand-le-sahara-etait-rempli-dherbe-darbres-et-dhommes","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-rempli-dherbe-darbres-et-dhommes\/","title":{"rendered":"Quand le Sahara \u00e9tait rempli d&rsquo;herbe, d&rsquo;arbres et d&rsquo;Hommes"},"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>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 plus arides de notre plan\u00e8te.<\/p>\n<p>Alors comment se fait-il qu\u2019en si peu de temps, \u00e0 l\u2019\u00e9chelle climatique, d\u2019immenses \u00e9tendues vertes deviennent le plus inhabitable d\u00e9sert au monde ?<\/p>\n<p>C\u2019est en \u00e9tudiant les poussi\u00e8res emport\u00e9es par les vents, et d\u00e9pos\u00e9es au fond de l\u2019Atlantique, que les scientifiques ont pu confirmer ce changement abrupt.<\/p>\n<p>Mais la raison de ce changement vient d\u2019une diminution des radiations solaires il y a 5 ou 6000 ans. En effet, la Terre a un peu recul\u00e9 par rapport au Soleil en changeant l\u00e9g\u00e8rement l&rsquo;angle de son axe; un cycle qui se produit tous les 23\u2009000 ans.<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/54RS8kAHybg?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=fr-FR&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>Moins de soleil veut dire moins d\u2019\u00e9vaporation en \u00e9t\u00e9, ce qui veut dire que la mousson africaine a perdu en intensit\u00e9. C\u2019est ainsi que l\u2019apport de pluie au nord de l\u2019Afrique s\u2019est arr\u00eat\u00e9, permettant au d\u00e9sert de se former.<\/p>\n<p>La plupart des grands d\u00e9serts sont en g\u00e9n\u00e9ral situ\u00e9s au milieu de ce syst\u00e8me (entre A et D sur le graphique) et ne b\u00e9n\u00e9ficient donc jamais de retomb\u00e9es de pluie. On peut le voir \u00e0 gauche du graphique : le 30\u00b0\u00adN se situe \u00e0 l&rsquo;extr\u00eame nord de l&rsquo;Afrique, au-dessus du Sahara actuel.&nbsp;<\/p>\n<p>Il y a 5 ou 6000 ans, donc, la cellule de Hadley \u00e9tait plus courte. Le point A, soit les retomb\u00e9es de pluie, \u00e9tait donc plus au sud : en plein sur le Sahara actuel.&nbsp;<\/p>\n<p>Aujourd&rsquo;hui, le Sahara est le plus grand d\u00e9sert chaud du monde.&nbsp;Il y a dix mille ans, il ressemblait plus \u00e0 la savane africaine, vue ici.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16124\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-rempli-dherbe-darbres-et-dhommes\/afrique-sahara-vert\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&amp;ssl=1\" data-orig-size=\"750,375\" data-comments-opened=\"1\" 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;}\" data-image-title=\"afrique-sahara-vert\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&amp;ssl=1\" class=\"alignnone size-full wp-image-16124\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?resize=750%2C375\" alt=\"\" width=\"750\" height=\"375\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?resize=300%2C150&amp;ssl=1 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>Cependant une autre explication du Sahara se tiendrait dans les ch\u00e8vres. \u00ab\u00a0Les ch\u00e8vres sont les principales suspectes\u00a0\u00bb, a d\u00e9clar\u00e9 Wright.&nbsp;\u00abJ&rsquo;ai litt\u00e9ralement vu une ch\u00e8vre manger une brique &#8211; elles mangent beaucoup pour leur taille.&nbsp;Il ne faudrait pas beaucoup de&nbsp;ch\u00e8vres dans un paysage stress\u00e9&nbsp;pour avoir un impact important. \u00a0\u00bb<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" 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\n<p>Si affam\u00e9s, les mammif\u00e8res herbivores pars\u00e8ment d\u00e9j\u00e0 le Sahara, pourquoi&nbsp;les animaux domestiqu\u00e9s&nbsp;jouent-ils un tel r\u00f4le de transformation?&nbsp;La r\u00e9ponse est que les animaux sauvages n&rsquo;aiment pas passer beaucoup de temps en plein air o\u00f9 ils sont des cibles faciles pour les pr\u00e9dateurs.&nbsp;Cependant, le b\u00e9tail est heureux de d\u00e9nuder un champ d&rsquo;herbe sous l&rsquo;\u0153il attentif d&rsquo;un gardien humain.<\/p>\n<p>Des troupeaux de ch\u00e8vres et d&rsquo;autres b\u00eates ont expos\u00e9 un sol qui \u00e9tait auparavant cach\u00e9 sous la v\u00e9g\u00e9tation, avec des cons\u00e9quences sur le climat local.&nbsp;Vous avez peut-\u00eatre appris \u00e0 l&rsquo;\u00e9cole que les&nbsp;couleurs plus vives refl\u00e8tent plus de lumi\u00e8re, c&rsquo;est pourquoi il est plus confortable de porter une chemise blanche qu&rsquo;une chemise noire par une journ\u00e9e chaude et ensoleill\u00e9e.&nbsp;La surface de la Terre fonctionne de la m\u00eame mani\u00e8re.&nbsp;La salet\u00e9 et le sable de couleur fauve r\u00e9fl\u00e9chissent plus de lumi\u00e8re que les herbes et les broussailles virides.<\/p>\n<p>\u00ab\u00a0Lorsque cette lumi\u00e8re est r\u00e9fl\u00e9chie, l&rsquo;\u00e9nergie associ\u00e9e \u00e0 la lumi\u00e8re retourne dans l&rsquo;atmosph\u00e8re, ce qui la r\u00e9chauffe.&nbsp;Sous les tropiques, une atmosph\u00e8re chauff\u00e9e a tendance \u00e0 avoir moins de nuages \u200b\u200bqu&rsquo;une atmosph\u00e8re plus fra\u00eeche \u00ab\u00a0, a d\u00e9clar\u00e9 Wright.&nbsp;Moins de nuages \u200b\u200bsignifie&nbsp;moins de pluie.&nbsp;C&rsquo;est ce qui s&rsquo;est pass\u00e9 au Sahara.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16125\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/quand-le-sahara-etait-rempli-dherbe-darbres-et-dhommes\/afrique-betail-passe\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-betail-passe.jpg?fit=750%2C360&amp;ssl=1\" data-orig-size=\"750,360\" data-comments-opened=\"1\" 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;}\" data-image-title=\"afrique-betail-passe\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-betail-passe.jpg?fit=750%2C360&amp;ssl=1\" class=\"alignnone size-full wp-image-16125\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-betail-passe.jpg?resize=750%2C360\" alt=\"\" width=\"750\" height=\"360\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-betail-passe.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-betail-passe.jpg?resize=300%2C144&amp;ssl=1 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>Les lignes sur cette carte repr\u00e9sentent la propagation du b\u00e9tail au cours des mill\u00e9naires.&nbsp;Les points repr\u00e9sentent des sites o\u00f9 les arch\u00e9ologues ont trouv\u00e9 des traces de b\u00e9tail.&nbsp;<\/p>\n<p>Wright dit que son hypoth\u00e8se laisse encore beaucoup de questions sans r\u00e9ponse.&nbsp;\u00abNous devons forer dans ces anciens lacs pour obtenir les enregistrements de la v\u00e9g\u00e9tation, regarder l&rsquo;arch\u00e9ologie et voir ce que les gens faisaient l\u00e0-bas\u00bb, a d\u00e9clar\u00e9 M. Wright.&nbsp;\u00ab\u00a0Il est tr\u00e8s difficile de mod\u00e9liser l&rsquo;effet de la v\u00e9g\u00e9tation sur les syst\u00e8mes climatiques.&nbsp;C&rsquo;est notre travail en tant qu&rsquo;arch\u00e9ologues et \u00e9cologistes de sortir et d&rsquo;obtenir les donn\u00e9es, pour aider \u00e0 faire des mod\u00e8les plus sophistiqu\u00e9s. \u00a0\u00bb<\/p>\n<p>Sources :&nbsp;<a href=\"https:\/\/phys.org\/news\/2016-12-years-sahara-tropicalwhat.html\">Phys.org<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/www.popsci.com\/sahara-desert-drought-humans\">Popular science<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/phys.org\/news\/2017-01-green-sahara-ancient-rainfall-regime.html\">PHYS<\/a>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"16123\">(1977)<\/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>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&#8230;<\/p>\n","protected":false},"author":1,"featured_media":16124,"comment_status":"open","ping_status":"open","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_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Quand le Sahara \u00e9tait rempli d'herbe, d'arbres et d'Hommes @laterredufutur","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":[196,6573,332,436,62,2760,636,329,37],"class_list":["post-16123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","category-climat","tag-afrique","tag-chevres","tag-desert","tag-passe","tag-pluie","tag-sable","tag-sahara","tag-secheresse","tag-soleil","wpcat-33-id","wpcat-20-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/afrique-sahara-vert.jpg?fit=750%2C375&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-4c3","jetpack-related-posts":[{"id":25445,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-desert-du-sahara-etait-autrefois-une-savane-verdoyante\/","url_meta":{"origin":16123,"position":0},"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":16123,"position":1},"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":2628,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-sahara-reverdit\/","url_meta":{"origin":16123,"position":2},"title":"Le Sahara reverdit","author":"Admin","date":"27 d\u00e9cembre 2004","format":false,"excerpt":"Le Sahel reverdit\u00a0! Ce n'est pas une incantation, mais une tendance bel et bien observ\u00e9e par des chercheurs qui ont d\u00e9pouill\u00e9 quinze ans de photographies satellites de la r\u00e9gion. Ces g\u00e9ographes europ\u00e9ens affirment que les terres cultivables commencent \u00e0 reprendre progressivement du terrain. Une bonne nouvelle\u00a0! D\u00e9cid\u00e9ment le changement climatique\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\/2015\/04\/maro0588.jpeg?fit=512%2C341&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":26313,"url":"https:\/\/www.laterredufutur.com\/accueil\/inondations-historiques-au-sahara\/","url_meta":{"origin":16123,"position":3},"title":"Inondations historiques au Sahara","author":"Admin","date":"16 octobre 2024","format":false,"excerpt":"\u00c0 la suite de pluies diluviennes en septembre, le c\u00e9l\u00e8bre d\u00e9sert africain a pris des airs d\u2019immense oasis Il n\u2019y a pas qu\u2019en Europe qu\u2019il pleut cet automne. En septembre, des pluies intenses se sont abattues sur le d\u00e9sert du Sahara, provoquant des inondations historiques. Dans le sud du Maroc,\u2026","rel":"","context":"Dans &quot;M\u00e9t\u00e9orologie&quot;","block_context":{"text":"M\u00e9t\u00e9orologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/meteorologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/zagora-au-maroc-apres-les-inondations-du-7-septembre-2024.jpg?fit=1155%2C769&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/zagora-au-maroc-apres-les-inondations-du-7-septembre-2024.jpg?fit=1155%2C769&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/zagora-au-maroc-apres-les-inondations-du-7-septembre-2024.jpg?fit=1155%2C769&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/zagora-au-maroc-apres-les-inondations-du-7-septembre-2024.jpg?fit=1155%2C769&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/10\/zagora-au-maroc-apres-les-inondations-du-7-septembre-2024.jpg?fit=1155%2C769&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":7742,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-grande-muraille-verte-du-sahara-pour-reverdir-le-sahara\/","url_meta":{"origin":16123,"position":4},"title":"La Grande muraille verte du Sahara pour reverdir le Sahara","author":"Admin","date":"6 ao\u00fbt 2015","format":false,"excerpt":"A l'heure o\u00f9 l'on parle de la plan\u00e8te Mars, voire de la terraformer, il serait bon de se poser les vraies questions pour notre propre plan\u00e8te. De Dakar \u00e0 Djibouti, une muraille verte pourquoi faire ? 11 pays africains s\u2019engagent pour freiner l\u2019avanc\u00e9e du d\u00e9sert et de la d\u00e9sertification au\u2026","rel":"","context":"Dans &quot;Solutions&quot;","block_context":{"text":"Solutions","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/solutions\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/trace-grande-muraille-verte-sahara.jpg?fit=416%2C257&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":24542,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-poussiere-du-sahara-entre-bienfaisance-et-nocivite\/","url_meta":{"origin":16123,"position":5},"title":"La poussi\u00e8re du Sahara entre bienfaisance et nocivit\u00e9","author":"Admin","date":"12 novembre 2022","format":false,"excerpt":"Tous les composants de notre plan\u00e8te ont de l\u2019importance, qu\u2019il s\u2019agisse des plus hautes montagnes ou des plus petits grains de poussi\u00e8re. C\u2019est notamment le cas de la poussi\u00e8re du Sahara, de la poussi\u00e8re qui voyage partout dans le monde et qui joue un r\u00f4le important dans la biologie et\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\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/desert-sahara-nuit-voie-lactee.jpg?fit=1050%2C620&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16123","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=16123"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16123\/revisions"}],"predecessor-version":[{"id":16126,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16123\/revisions\/16126"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/16124"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=16123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=16123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=16123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}