{"id":661,"date":"2005-05-31T15:32:53","date_gmt":"2005-05-31T14:32:53","guid":{"rendered":"http:\/\/carfree.fr\/index.php\/2005\/05\/31\/la-theorie-dolduvai\/"},"modified":"2024-02-29T08:58:40","modified_gmt":"2024-02-29T07:58:40","slug":"la-theorie-dolduvai","status":"publish","type":"post","link":"https:\/\/carfree.fr\/index.php\/2005\/05\/31\/la-theorie-dolduvai\/","title":{"rendered":"La th\u00e9orie d&rsquo;Olduvai"},"content":{"rendered":"<p>La th\u00e9orie d&rsquo;Olduvai explique que l&rsquo;humanit\u00e9 retournera \u00e0 un mode de vie primitif au cours d&rsquo;une \u00e9poque post-industrielle suite \u00e0 l&rsquo;\u00e9puisement des ressources \u00e9nerg\u00e9tiques fossiles exploitables, mode de vie similaire \u00e0 celui des premiers humains ayant v\u00e9cu dans les gorges d&rsquo;Olduvai en Tanzanie (Afrique). <!--more--><\/p>\n<p>Cette th\u00e9orie est une autre mani\u00e8re de d\u00e9crire le pic de Hubbert et ses cons\u00e9quences, en particulier la fin du p\u00e9trole.<\/p>\n<p>La th\u00e9orie d&rsquo;Olduvai est une hypoth\u00e8se pr\u00e9sent\u00e9e pour la premi\u00e8re fois par Richard Duncan en juin 1996. Les explications d\u00e9taill\u00e9es (en anglais) de la Th\u00e9orie d&rsquo;Olduvai se trouvent sur le site dieoff.org. Voici la l\u00e9gende du graphique:<\/p>\n<p>1. Ere pr\u00e9-industrielle [- 3 000 000 d&rsquo;ann\u00e9es  \u00e0 1930]<\/p>\n<p>* A &#8211; Fabrication d&rsquo;outils (- 3 000 000)<br \/>\n* B &#8211; D\u00e9couverte du feu (- 1 000 000)<br \/>\n* C &#8211; R\u00e9volution de l&rsquo;agriculture n\u00e9olithique (- 8 000)<br \/>\n* D &#8211; Moteur \u00e0 vapeur de Watts (1765) et d\u00e9but de l&rsquo;\u00e8re industrielle (1930-2025)<\/p>\n<p>2. Ere industrielle [1930 \u00e0 2025, estimation]<\/p>\n<p>* E &#8211; Utilisation d&rsquo;\u00e9nergie de 37% de la valeur maximale<br \/>\n* F &#8211; Utilisation maximale de l&rsquo;\u00e9nergie<br \/>\n* G &#8211; Utilisation actuelle de l&rsquo;\u00e9nergie<br \/>\n* H &#8211; Utilisation d&rsquo;\u00e9nergie de 37% de la valeur maximale<\/p>\n<p>3. Ere post-industrielle [apr\u00e8s 2100 ]<\/p>\n<p>* J, K, and L = Les tentatives futures d&rsquo;industrialisation \u00e9chouent.  D&rsquo;autres sc\u00e9narios sont possibles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La th\u00e9orie d&rsquo;Olduvai explique que l&rsquo;humanit\u00e9 retournera \u00e0 un mode de vie primitif au cours d&rsquo;une \u00e9poque post-industrielle suite \u00e0 l&rsquo;\u00e9puisement des ressources \u00e9nerg\u00e9tiques fossiles exploitables, mode de vie similaire <a class=\"more-link\" href=\"https:\/\/carfree.fr\/index.php\/2005\/05\/31\/la-theorie-dolduvai\/\">Lire la suite&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":45831,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[1848,107,68,99,45,142],"views":9010,"_links":{"self":[{"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/posts\/661"}],"collection":[{"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/comments?post=661"}],"version-history":[{"count":0,"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/posts\/661\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/media\/45831"}],"wp:attachment":[{"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/media?parent=661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/categories?post=661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/carfree.fr\/index.php\/wp-json\/wp\/v2\/tags?post=661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}