{"id":4210,"date":"2007-04-17T11:24:59","date_gmt":"2007-04-17T11:24:59","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/04\/17\/colza-la-hausse\/"},"modified":"2012-07-12T09:54:27","modified_gmt":"2012-07-12T09:54:27","slug":"colza-la-hausse","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/04\/17\/colza-la-hausse\/","title":{"rendered":"Colza : la hausse aussi"},"content":{"rendered":"<p><a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/colza3.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"252\"  alt=\"Colza\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/colza.jpg\" style=\"margin: 0px 5px 5px 0px;float: left\" \/><\/a> Le <a href=\"http:\/\/lasen.epfl.ch\/webdav\/site\/lasen\/shared\/biodiesel\">colza<\/a> sert quand \u00e0 lui, \u00e0 fabriquer du biofioul. <br \/>N\u00e9cessitant de lourds investissements de d\u00e9part, le Colza n&rsquo;a pu se d\u00e9velopper en Europe qu&rsquo;\u00e0 coup de subventions. Mais, d\u00e9sormais la Chine est tent\u00e9e. Gros producteur, avec des r\u00e9coltes de 12 \u00e0 15 millions de tonnes, la production y est peu d\u00e9velopp\u00e9e. Les co\u00fbts s&rsquo;abaissant, les politiques volontaristes s&rsquo;affirment. On peut produire (biolux) 265 000 tonnes de biodiesel \u00e0 partir de 700 000 tonnes de Colza. Mais, gr\u00e2ce \u00e0 ces donn\u00e9es, on voit tr\u00e9s clairement les limites de cette politique de transformation : quelques millions de tonnes. Ou alors, il faudrait notoirement augmenter les surfaces cultiv\u00e9es, alors que les <a href=\"http:\/\/www.bjinformation.com\/fw-2005\/2006.32\/2006.32-sh1.htm\">terres arables diminuent<\/a> d\u00e9j\u00e0 chaque ann\u00e9e, et que l&rsquo;<a href=\"http:\/\/www.cefc.com.hk\/fr\/pc\/articles\/art_ligne.php?num_art_ligne=8201\">autosuffisance alimentaire<\/a> chinoise rel\u00e9ve de plus en plus du voeu pieux.<\/p>\n<p>En r\u00e9alit\u00e9, si en France des agriculteurs roulent au biodiesel (avec une fabrication artisanale peu co\u00fbteuse), il serait l\u00e0 aussi difficile de remplacer, hors quantit\u00e9 symbolique, les 40 000 000 de tonnes (et quelques) par des biocarburants. M\u00eame si cette fili\u00e8re est quand m\u00eame plus cr\u00e9dible que la fili\u00e8re \u00e9thanol. En r\u00e9alit\u00e9, pour un pays de la taille de la France, il serait, \u00e0 l&rsquo;heure actuelle beaucoup plus \u00e9conome en carburant de faire remplacer (y compris \u00e0 grand coups de subventions publiques) les chauffages au fioul, en les rempla\u00e7ant par des technologies vertueuses. La priorit\u00e9 n&rsquo;est pas le biocarburant, mais r\u00e9duire, \u00e0 tout prix la consommation, o\u00f9 c&rsquo;est possible, o\u00f9, c&rsquo;est tr\u00e9s rentable, avec un gros effet de levier.<br \/>Mais, il n&rsquo;y a pas de lobby pour l&rsquo;\u00e9conomie d&rsquo;\u00e9nergie, mais par contre, il existe un tr\u00e9s honorable lobby agricole&#8230; Le colza, \u00e0 l&rsquo;heure actuelle, va lui aussi \u00eatre index\u00e9 sur le p\u00e9trole&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le colza sert quand \u00e0 lui, \u00e0 fabriquer du biofioul. N\u00e9cessitant de lourds investissements de d\u00e9part, le Colza n&rsquo;a pu se d\u00e9velopper en Europe qu&rsquo;\u00e0 coup de subventions. Mais, d\u00e9sormais la Chine est tent\u00e9e. Gros producteur, avec des r\u00e9coltes de 12 \u00e0 15 millions de tonnes, la production y est peu d\u00e9velopp\u00e9e. Les co\u00fbts s&rsquo;abaissant, [&hellip;]<\/p>\n","protected":false},"author":198,"featured_media":5350,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,8],"tags":[1918],"class_list":["post-4210","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","category-bio-carburants","tag-colza-terres-arables-diminuent-autosuffisance-alimentaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Colza : la hausse aussi - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/04\/17\/colza-la-hausse\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Colza : la hausse aussi - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"Le colza sert quand \u00e0 lui, \u00e0 fabriquer du biofioul. N\u00e9cessitant de lourds investissements de d\u00e9part, le Colza n&rsquo;a pu se d\u00e9velopper en Europe qu&rsquo;\u00e0 coup de subventions. Mais, d\u00e9sormais la Chine est tent\u00e9e. Gros producteur, avec des r\u00e9coltes de 12 \u00e0 15 millions de tonnes, la production y est peu d\u00e9velopp\u00e9e. 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