Les apprentis sorciers

Les projets fous des géo-ingénieurs pour réparer le climat.

John Holdren, le conseiller scientifique d’Obama, l’envisageait en 2009 comme une voie à explorer en dernier recours, un plan B « si nous sommes suffisamment désespérés ».

Depuis, la géo-ingénierie s’est taillée une place considérable dans les débats sur le climat, et de nombreux projets ont bourgeonné dans l’esprit des scientifiques.

Et comme on l’a vu précédemment, ce qui peut être salvateur d’un côté de l’équation – ou du globe – peut être destructeur de l’autre. Vu les incertitudes qui pèsent sur la lutte contre les émissions carbonnées, il y a fort à parier qu’en ce qui concerne la géo-ingénierie, le concert des nations sera quelque peu dissonant.

source – http://www.rue89.com/2013/07/19/les-projets-fous-geo-ingenieurs-reparer-climat-244358

Pandoravirus

パンドラウイルス属 (Pandoravirus) とは、ウイルスの1である[1]。単にパンドラウイルスとも呼ばれる。2013年時点では2が発見されているが、いずれもカプシド径とゲノムが共に既知で最大のウイルスであり、新しいドメインを構成する生物ではないかとする説もある[2]

source – https://ja.wikipedia.org/wiki/%E3%83%91%E3%83%B3%E3%83%89%E3%83%A9%E3%82%A6%E3%82%A4%E3%83%AB%E3%82%B9%E5%B1%9E

http://www.huffingtonpost.fr/2013/07/19/des-scientifiques-francais-decouvrent-deux-types-de-virus-geants-pandoravirus_n_3621561.html

http://www.cea.fr/recherche-fondamentale/pandoravirus-114119

http://www.reponseatout.com/pratique/sante-bien-etre/pandoravirus-francais-decouvrent-deux-virus-geants-a1010499

http://www.maxisciences.com/virus/decouverte-de-virus-geants-et-mysterieux-les-pandoravirus_art30244.html

http://fr.news.yahoo.com/d%C3%A9couverte-virus-g%C3%A9ants-myst%C3%A9rieux-pandoravirus-180254348.html

http://www.gizmodo.fr/2013/07/20/decouverte-pandoravirus-bouleverse-classification.html

http://sante.planet.fr/a-la-une-deux-virus-geants-decouverts-par-des-chercheurs-francais.396194.2035.html?xtor=EPR-26-379731%5BMedisite-A-la-Une%5D-20130722

http://mondeactu.com/2013/07/19/pandoravirus-decouverte-de-deux-virus-geants-en-france-14118

Pandoravirus is a genus of very large viruses, with genomes much larger than those of any other known type of virus. Like the other very large viruses Mimivirus and Megavirus, Pandoravirus infects amoebas, but its genome, containing 1.9–2.5 megabases of DNA, is on the order of twice as large as that of Megavirus, and it differs greatly from the other large viruses in appearance and in genome structure.[1]

Pandoraviruses have a size of approximately 1 micron and a bloblike shape resembling some types of bacteria. The genome of the larger variant, Pandoravirus salinus, was reported to contain 2556 putative protein-coding sequences, of which only 6% had recognizable relationships with genes from other known organisms.[5] The dissimilarity of the remaining genes to any that are known, led the researchers to speculate that this virus may represent a previously unknown branch of the tree of life. However, experts not involved in the study have called that suggestion premature.[6]

The discovery of pandoraviruses, by a team of French scientists led by Jean-Michel Claverie and his wife Chantal Abergel, was announced in a report in the journal Science in July 2013.[2]

Mimivirus, a megavirus with a genome size of about 1.1 megabases, had been discovered in 1992 but not recognized as a virus until 2003.[3] Megavirus, discovered in 2011, has a genome size of about 1.3 megabases.[4]

The prior discovery of these megaviruses prompted a search for other types of large amoeba-infecting viruses, which led to the finding of two species; Pandoravirus salinus, in seawater taken from off the coast of Chile, with a genome size of 2.5 megabases; and Pandoravirus dulcis, in water from a freshwater pond in Australia, with genome size 1.9 megabases.[2]

https://en.wikipedia.org/wiki/Pandoravirus