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<p><b>New page</b></p><div>{{Short description|French geophysicist holding climate-skeptical positions}}<br />
{{Infobox scientist<br />
| name = Vincent E. Courtillot<br />
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| birth_date = {{birth date and age|1948|03|06|df=yes}}<br />
| birth_place = [[Neuilly-sur-Seine]], [[France]]<br />
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| fields = [[Paleomagnetism]], [[geodynamic]], [[Deccan Traps|volcanic traps]], [[Hotspot (geology)|hotspots]]<br />
| workplaces = [[IPGP|Institut de Physique du Globe de Paris]]<br />
| alma_mater = [[Mines ParisTech]]<br>[[Stanford University]]<br>University of Paris-6<br />
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| awards = Chevalier de la Légion d'Honneur (1994)<br />
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'''Vincent E. Courtillot''' (born 6 March 1948) is an emeritus French [[geophysics|geophysicist]], prominent among the researchers who are critical of the hypothesis that [[impact events]] are a primary cause of [[mass extinction]] of life forms on the Earth. He is known for his book ''La Vie en catastrophes'' (Paris, [[Fayard]], 1995), translated into English as ''Evolutionary catastrophes'' (1999).<br />
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== Biography ==<br />
Courtillot is an engineer from the [[École nationale supérieure des Mines de Paris]]. He then studied at [[Stanford University]].<ref>In 1972, he wrote there a report ''[http://searchworks.stanford.edu/view/1967107 Inverse filtering of marine magnetic anomalies]''</ref> In 1974, he was awarded a doctorate by [[Pierre and Marie Curie University|University Paris 6]]<ref>''[http://www.worldcat.org/oclc/490570807 Quelques applications du problème inverse à l'étude des anomalies magnétiques, gravimétriques et géothermiques]'', thèse de troisième cycle, Université Paris-6</ref> and in 1977 a state doctorate by [[Paris Diderot University|University Paris 7]].<ref>''Sur l'analyse de certaines variations spatiales et temporelles du champ magnétique terrestre'', thèse de doctorat d'État, Université Paris-7.</ref><br />
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He has pursued an academic career in France and the United States, including teaching stints at [[Caltech]] and the [[University of Minnesota]], and work with the [[IPGP|Institut de Physique du Globe de Paris]] (where he has been director since 2004), and the Ministry of National Education in France. (From 1998 to 2001 Courtillot served under [[Claude Allègre]] as director of research when Allègre was [[Minister of National Education (France)|Minister for National Education, Research and Technology]].) Courtillot is currently Professor of Geophysics at the [[Paris Diderot University]]. He has published in excess of 150 papers in scientific journals, with some emphasis on the specialty of [[paleomagnetism]]; he has served as editorial advisor to the French journal ''[[La Recherche]].''<br />
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Vincent Courtillot was elected to membership in the [[French Academy of Sciences]] in November 2003. He is also a member of the ''Fondation Ecologie d'Avenir'' since 2011.<ref>{{cite web|url=http://www.fondationecologiedavenir.org/Conseil_Orientation.htm|archive-url=https://web.archive.org/web/20111006034618/http://www.fondationecologiedavenir.org/Conseil_Orientation.htm|url-status=dead|archive-date=2011-10-06|title=Fondation Ecologie d'Avenir: Le Conseil d'Orientation}}</ref><br />
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== Research ==<br />
{{BLP unsourced section|date=August 2022}}<br />
Courtillot favors the hypothesis that major [[mass extinctions]] are caused by massive episodes of vulcanism: that the [[Permian-Triassic extinction event|Permian-Triassic (P/T) extinction]] that ended the [[Paleozoic Era]] was caused by the [[Siberian Traps]] eruption, and the [[Cretaceous–Paleogene extinction event]] that ended the [[Mesozoic Era]] was caused by the [[Deccan Traps]] [[Volcanism|vulcanism]] in India. His position is generally in opposition to the hypothesis famously championed by [[Luis Walter Alvarez|Luis Alvarez]] and [[Walter Alvarez]], that the K/T extinction that saw the end of the non-avian [[dinosaur]]s was primarily due to the [[asteroid]] impact at [[Chicxulub crater|Chicxulub]] on the [[Yucatan Peninsula]]. However, Courtillot does not dispute the scientifically-determined facts of the [[Chicxulub crater|Chicxulub impact]]; rather, he argues that the totality of the available evidence supports a thesis that [[mass extinctions]] are generally caused by volcanic action.<br />
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== Magnetic field and climate ==<br />
He is currently at the centre of a scientific controversy<ref name="BardDelaygue2008">{{cite journal | last1=Bard | first1=Edouard | last2=Delaygue | first2=Gilles | year=2008 | title=Comment on "Are there connections between the Earth's magnetic field and climate?" by V. Courtillot, Y. Gallet, J.-L. Le Mouël, F. Fluteau, A. Genevey EPSL 253, 328, 2007 | journal=Earth and Planetary Science Letters | volume=265 | issue=1–2 | pages=302–307 | doi=10.1016/j.epsl.2007.09.046| bibcode=2008E&PSL.265..302B }}</ref> regarding the publication of one of his papers in the journal ''[[Earth and Planetary Science Letters]] (EPSL)'' entitled “Are there connections between the Earth's magnetic field and climate?” by V. Courtillot, Y. Gallet, J.-L. Le Mouël, F. Fluteau, A. Genevey (2007) EPSL 253, 328. There have been articles in ''[[Le Monde]]'' on 15 January 2008,<ref>{{cite news|url=http://www.lemonde.fr/planete/article/2008/01/15/point-de-vue-de-vincent-courtillot_999585_3244.html|title=Point de vue de Vincent Courtillot|date=15 January 2008|via=Le Monde|newspaper=Le Monde.fr}}</ref> and in ''[[Science (journal)|Science]]'' on 11 January 2008<ref name="Pasotti2008">{{cite journal|last1=Pasotti|first1=Jacopo|date=11 January 2008|title=Daggers are drawn over revived cosmic ray-climate link |journal=Science|volume=319|issue=5860|pages=144|doi=10.1126/science.319.5860.144|pmid=18187627|s2cid=8438851|doi-access=free}}</ref> concerning the debate over this paper.<br />
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He is usually considered<ref name="BardDelaygue2008" /> to be a [[global warming denier]], often associated with [[Claude Allègre]]. Vincent Courtillot asserted that his collaboration with oil companies [[Total S.A.|Total]] and [[Schlumberger]] on {{CO2}} sequestration ([[Carbon capture and storage|CCS]])<ref>{{Cite web | url=http://www.france-info.com/chroniques-parlons-net-2009-11-27-parlons-net-vincent-courtillot-un-climatosceptique-tempere-373798-81-264.html | title=Franceinfo - Actualités en temps réel et info en direct}}</ref><ref>{{cite web |url=http://www.ipgp.fr/pages/020203.php |title=Institut de Physique du Globe de Paris - Stockage géologique du CO<sub>2</sub> |website=www.ipgp.fr |url-status=dead |archive-url=https://web.archive.org/web/20090618214603/http://www.ipgp.fr/pages/020203.php |archive-date=2009-06-18}}</ref> has no influence on his research and results.<br />
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== See also ==<br />
* [[Scientific opinion on climate change]]<br />
* [[Solar variation#Geomagnetic effects|Solar variation and its geomagnetic effects]]<br />
* [[Henrik Svensmark]]: effect of cosmic rays on cloud cover<br />
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== Selected publications ==<br />
* {{cite journal| author=Vincent Courtillot, Jean Besse, Didier Vandamme, Raymond Montigny, Jean-Jacques Jaeger and Henri Cappetta |journal=Earth and Planetary Science Letters |volume=80 |issue=3–4 |date=November 1986 |pages=361–374 |doi=10.1016/0012-821X(86)90118-4 |title=Deccan flood basalts at the Cretaceous/Tertiary boundary? |bibcode=1986E&PSL..80..361C}}<br />
* {{Cite journal |author1=Mark A. Richards |author2=Robert A. Duncan |author3=Vincent E. Courtillot |name-list-style=amp |title=Flood Basalts and Hot-Spot Tracks: Plume Heads and Tails |journal=Science |date=6 October 1989 |volume=246 |pmid=17837768 |issue=4926 |pages=103–107 |doi=10.1126/science.246.4926.103 |bibcode=1989Sci...246..103R|s2cid=9147772 }}<br />
* {{cite journal| last=Courtillot |first=Vincent |year=1994 |title=Mass extinctions in the last 300 million years: One impact and seven flood basalts? |journal=Israel Journal of Earth Sciences |volume=43 |pages=255–266 }}<br />
* {{cite book| author=Courtillot, Vincent |title=Evolutionary Catastrophes: the Science of Mass Extinction |postscript=. Translator: Joe McClinton |place=Cambridge |publisher=Cambridge University Press |year=1999}}<br />
* {{cite journal| author=V. Courtillot, Y. Gallet, R. Rocchia, G. Féraud, E. Robin, C. Hofmann, N. Bhandari and Z. G. Ghevariya |journal=Earth and Planetary Science Letters |volume=182 |issue=2 |date=30 October 2000 |pages=137–156 |doi=10.1016/S0012-821X(00)00238-7 |title=Cosmic markers, 40Ar/39Ar dating and paleomagnetism of the KT sections in the Anjar Area of the Deccan large igneous province |bibcode = 2000E&PSL.182..137C |url=http://doc.rero.ch/record/14481/files/PAL_E1675.pdf }}<br />
* {{cite journal|author1=Vincent E. Courtillot |author2=[[Paul Renne|Paul R. Renne]] |name-list-style=amp |journal=Comptes Rendus Geoscience |volume=335 |issue=1 |date=January 2003 |pages=113–140 |doi=10.1016/S1631-0713(03)00006-3 |title=On the ages of flood basalt events |bibcode = 2003CRGeo.335..113C |citeseerx=10.1.1.461.3338 }}<br />
* {{cite journal| author=Vincent Courtillot, Yves Gallet, Jean-Louis Le Mouël, Frédéric Fluteau and Agnès Genevey |title=Are there connections between the Earth's magnetic field and climate? |doi=10.1016/j.epsl.2006.10.032 |journal=Earth and Planetary Science Letters<br />
|volume=253 |issue=3–4 |date=30 January 2007 |pages=328–339 |bibcode=2007E&PSL.253..328C}}<br />
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== Books in French ==<br />
* {{cite book | last=Courtillot | first=Vincent | year=1995 | title=La vie en catastrophes | publisher=Fayard | location=Paris | isbn=978-2-213-59511-5}}<br />
* {{cite book | last=Courtillot | first=Vincent | date=September 2009 | title=Nouveau voyage au centre de la Terre | publisher=Éditions Odile Jacob | location=Paris | isbn=978-2-7381-1939-1}}<br />
* {{cite journal | last=Courtillot | first=Vincent |date=April 2008 | title=Quelques éléments de débat scientifique dans la question du changement climatique | journal=Annales des Mines, Responsabilité et Environnement | volume=50 | issue=2 | pages=87–93 | doi=10.3917/re.050.0087 | url=http://www.annales.org/re/2008/re50/Courtillot.pdf}}<br />
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== References ==<br />
{{Reflist}}<br />
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== External links ==<br />
* [http://www.academie-sciences.fr/academie/membre/Courtillot_Vincent.htm Courtillot's ''Academie'' biography (in French).]<br />
* [http://www.academie-sciences.fr/academie/membre/CourtillotV_bio040411.pdf Curriculum vitae (Institut de France, Académie des Sciences, Sciences de l'univers)]<br />
* [http://ae-info.org/attach/User/Courtillot_Vincent/courtilot_vincent_publications.pdf Vincent Courtillot's Publications]<br />
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{{Authority control}}<br />
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[[Category:1948 births]]<br />
[[Category:Living people]]<br />
[[Category:Knights of the Legion of Honour]]<br />
[[Category:Foreign members of the Chinese Academy of Sciences]]<br />
[[Category:French geophysicists]]<br />
[[Category:Members of the French Academy of Sciences]]<br />
[[Category:Mines Paris - PSL alumni]]<br />
[[Category:Stanford University alumni]]</div>imported>Randy Kryn