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LE CHANGEMENT CLIMATIQUE MISE EN ÉVIDENCE, DÉNI ET DÉFIS

Authors: Munhoven, Guy;

LE CHANGEMENT CLIMATIQUE MISE EN ÉVIDENCE, DÉNI ET DÉFIS

Abstract

Depuis le début de l’ère industrielle, la température de surface de la Terre a augmenté de plus d’un degré Celsius en moyenne. Notre compréhension scientifique du système climatique terrestre, qui s’est construite au cours des deux siècles passés, ne laisse que très peu de doute : ce réchauffement n’est pas d’origine naturelle, il est lié aux émissions de gaz à effet de serre, surtout de CO2, mais aussi de CH4, de N2O ou de gaz halogènes par l’activité humaine. Dans cette contribution, je vous présenterai brièvement les principaux indicateurs montrant que le climat subit effectivement un changement important actuellement, que ce changement est lié à un renforcement de l’effet de serre naturel, et que ce sont les gaz à effet de serre émis par l’activité humaine qui sont à l’origine de ce bouleversement. Je passerai en revue quelques étapes et tournants importants de l’histoire du développement des sciences climatiques. Partant d’une série d’arguments «climato-sceptiques» courants, je vous présenterai les développements scientifiques récents Enfin nous allons examiner les complications liés au transfert et à la transposition des connaissances scientifiques en des mesures politiques adéquates pour mitiger le changement climatique ou pour s’y adapter. Les défis et pièges potentiels liés à la communication de la science climatique aux dirigeants politiques.

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Keywords

Changement climatique, changement climatique, détection et attribution, Physique, chimie, mathématiques & sciences de la terre, Histoire des sciences, Sciences de la terre & géographie physique, Physical, chemical, mathematical & earth Sciences, History of science, Earth sciences & physical geography, Climate change, detection and attribution

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold