Il n’y a pas d’urgence climatique

Ce message urgent a été préparé par un réseau mondial de 700 scientifiques et professionnels. Les sciences du climat doivent être moins politisées, tandis que les politiques climatiques doivent s’inspirer davantage de la science. Les scientifiques doivent tenir clairement compte des incertitudes et des exagérations dans leurs prédictions de réchauffement climatique, tandis que les dirigeants politiques devraient évaluer de façon dépassionnée les coûts réels ainsi que les bénéfices projetés de leurs mesures.

Des facteurs naturels aussi bien qu’anthropiques causent le réchauffement

Les archives géologiques révèlent que le climat terrestre change depuis que la planète existe, avec des phases naturelles chaudes et froides. Le Petit Âge glaciaire n’ayant pris fin que vers 1850, il n’est pas surprenant que nous connaissions à présent une période de réchauffement.

Le réchauffement est beaucoup plus lent que prévu

Le monde s’est réchauffé à une vitesse moitié moindre que celle que le GIEC avait prévu en se fondant sur la modélisation du forçage anthropique et de l’équilibre radiatif. Cela nous indique que nous sommes encore loin de comprendre le changement climatique.

Les politiques climatiques s’appuient sur des modèles inadéquats

Les modèles présentent de nombreuses lacunes et ne constituent pas, même de loin, des outils valables pour une politique mondiale. Ils exagèrent l’influence des gaz à effet de serre tels que le CO2. De plus, ils ignorent le caractère positif d’une atmosphère enrichie en CO2.

Le CO2 est la nourriture des plantes, le fondement de toute vie sur Terre

Le CO2 n’est pas un polluant, il est en réalité essentiel à la vie sur Terre. La photosynthèse est un immense bienfait. Davantage de CO2 est un bénéfice net pour la nature, car celui-ci verdit la Terre. Le CO2 additionnel dans l’air a favorisé la croissance de la biomasse végétale à l’échelle globale. Il a également un effet positif sur l’agriculture, dont les rendements augmentent dans le monde entier.

Le réchauffement climatique n’a pas accru les catastrophes naturelles

Il n’y a aucune preuve statistique que le réchauffement climatique intensifierait les ouragans, les inondations, les sécheresses et autres catastrophes naturelles, ni qu’il les rendrait plus fréquentes. Il existe en revanche des preuves abondantes que les mesures de limitation des émissions de CO2 sont à la fois néfastes et coûteuses.

Les politiques climatiques doivent tenir compte des réalités scientifiques et économiques

Il n’y a pas d’urgence climatique. Il n’y a donc aucun fondement à la panique ou l’alarmisme. Nous nous opposons fermement aux projets à la fois néfastes et irréalistes qui viseraient à réduire à zéro les émissions de CO2 en 2050. À l’avenir, si la science crée de nouvelles connaissances et la technologie crée de nouvelles capacités, et elles le feront certainement, nous aurons amplement le temps d’actualiser nos politiques. L’objectif d’une politique globale doit être celui de la prospérité pour tous, grâce à une énergie fiable et bon marché. Ce n’est que dans une société prospère qu’hommes et femmes ont accès à une bonne instruction, que les taux de naissances sont modérés et que les gens prennent soin de leur environnement.

Signataires

1. Benoît Rittaud, Assistant Professor of Mathematics at University of Paris-Nord, President of the French Association des climato-réalistes; WCD Ambassador
2. Jean-Charles Abbé, Former Research Director at CNRS, Labs Director (Strasbourg, Nantes) in Radiochemistry, Expert at NATO and IAEA
3. Pascal Acot, Centre National de la Recherche Scientific, Paris
4. Bertrand Alliot, Environmentalist
5. Charles Aubourg, Full Professor at the University of Pau, Geophysicist
6. Hervé Azoulay, Engineer (CNAM), Specialist of Networks and Systemics, CEO and President of several Associations
7. Jean-Pierre Bardinet, Ingénieur ENSEM, Publicist on Climate Issues
8. Bernard Beauzamy, University Professor (Ret.), Chairman and CEO, Société de Calcul Mathématique SA (Paris)
9. Serge Bellotto PhD, Geology
10. Guy Bensimon, Retired Associate Professor of Economics at Institute of Political Studies of Grenoble (SciencesPo Grenoble)
11. Jean-Claude Bernier, Emeritus Professor (University of Strasbourg), Former Director of the Institute of Chemistry of the CNRS
12. Pierre Beslu, Former Researcher and Head of Department in the French Nuclear Energy Commission (CEA)
13. Michel Bouillet PhD, Human Geography, Emeritus Professor, Former Associate Researcher at the MMSH (Aix-en-Provence)
14. Sylvie Brunel, Full Professor at Sorbonne University, Geographer and Economist, Former President of the Humanitarian Organization Action against Hunger (Action contre la faim)
15. Christian Buson PhD, Agronomy, Director of Research in a Company (impact studies in Environmental Issues, Sewage Treatment)
16. Jean-Louis Butré, Professional Engineer, Head of Laboratory at Grenoble Nuclear Research Center, Chief Executive Officer of the Pharmacie Centrale de France, President of Axens, President of the Fédération Environnement Durable and the European Platform Against Windfarms, Knight of the National Order of Merit
17. Bernard Capai, Retired Chemistry Engineer, Specialist of Industrial Processes avoiding the use of Carcinogenic Solvents
18. Patrick de Casanove, Doctor of Medicine, Chairman of the Cercle Frédéric Bastiat
19. Philippe Catier, Medical Doctor
20. Bruno Chaumontet, Engineer ENSEA, specialized in Feedback Systems
21. Pascal Chondroyannis, Forest Engineer, Retired Director of the National Alpine Botanical Conservatory (2008-2013)
22. Jean Michel Colin PhD, Retired Chemist Engineer, Expert for the French Academic Evaluation Agency (AERES)
23. Philippe Colomban, CNRS Research Emeritus Professor, Former Head of Laboratory at Université Piere-et-Marie Curie, Expert in Hydrogen-based Energy Storage
24. Jacques Colombani, Former Research Director ORSTOM-IRD, numerous Studies in Hydrology and Climatology and Specialist in Fluid Mechanics, Member of the Board of ORSTOM for twenty years
25. Christian Coppe PhD, Organic & Analytical Chemistry
26. Philippe Costa, Energy Engineer at ENSEM Nancy, specialist in Industrial Process and Energy Saving
27. Vincent Courtillot, Geophysicist, Member of the French Academy of Sciences, Former Director of the Institute de Physique du Globe de Paris
28. Pierre Darriulat, Professor of Physics, Member of the French Academy of Sciences
29. Jean Davy, Engineer (ENSAM), Digital Modeling Software Developer
30. Pierre Delarboulas, CEO of a Robotics Company, Former R&D Director at Partnering Robotics, Silver Medal at the 2016 Lépine contest of the Ministry of Foreign Affairs and International Development
31. Jean-Pierre Desmoulins, Retired Professor of Thermal and Energy Engineering at the “Institut Universitaire de Technologie, Université-Grenobles-Alpes”
32. Gérard Douhet PhD, Nuclear Physics, Retired Engineer at CERN, Technical Manager on Digital Transmission and Video Encoding
33. Hubert Dulieu, Emeritus Professor Applied Ecology, Formerly Senior Researcher in the CNRS, President of the National Scientific Research Committee, Vegetal Biology Section (XXVII)
34. Bruno Durieux, Economist, Former Minister of Health and of Foreign Trade, Ancient Administrator of the French National Institute of Statistics and Economic Studies (INSEE)
35. Max Falque, International Consultant in Environmental Policy
36. Serge Ferry PhD, Retired Teacher-Researcher (MCF), University of Lyon
37. Patrick Fischer, Associate Professor in Applied Mathematics, University of Bordeaux
38. Michel Frenkiel, Engineer (Arts et Métiers), Former Researcher at NCAR in Boulder
39. Francis le Gaillard PhD, Natural Sciences and Pharmaceutical Sciences, Emeritus Professor of Biochemistry at the Faculty of Pharmaceutical Sciences of Toulouse
40. François Gauchenot, Governance Specialist, Founder of Saint George Institute
41. Jean Gergelé, Engineer Graduate from the Ecole Centrale de Lyon, R&D Director, Freelance Consultant, mainly in the Li-ion battery development
42. Christian Gérondeau, Former Advisor of several French Prime Ministers, Formerly responsible for the Road Traffic Safety Policy for France and the European Union
43. Francois Gervais, Emeritus Professor of Physics and Material Sciences, University of Tours
44. Philippe Giraudin, Ecole Polytechnique Paris, Geographic Sciences
45. Bernard Grandchamp, Agronomic Engineer and Environment & Plant Defense Expert, Managing Director of Famoux Chateaux Viticoles in Bordeaux
46. Gilles Granereau, Former Meteorologist, currently Project Manager Environment and Tourism in a Public Institution, Worked on Coastal Risks, Marine Erosion, Sand Dune Fixation, Hydraulics, Forest Management, Botany
47. Maximilian Hasler, Associate Professor in Mathematics, University of French West Indies
48. Charles Hazan, Retired Chemist (ENSCP) and Chemical Engineer (UMIST) Former Technical Director Nosolor
49. Yvon Jarny, Emeritus Professor in Thermal and Energy Sciences, Nantes University
50. Claude Jobin, Retired A&M Engineer specialized in Microwave Communication
51. Alexandre Krivitzky, Psychoanalyst, Member of the International Psychoanalytical Association
52. Roger Lainé, Retired Geological Engineer
53. Philippe de Larminat, Professor at École Centrale de Nantes, specialist of Business Process Modeling
54. René Laversanne, Researcher at the CNRS, 16 patents
55. Jean-Marie Longin, Engineer (Saint-Cyr), Chief of the Pole Operations of Security Inventory Management
56. Guy Lucazeau, Emeritus Professor (Institut Polytechnique de Grenobel) in Material Sciences and Spectroscopy
57. Philippe Malburet, Emeritus Associated Professor of Mathematics, Founder of the Planetarium of Aix-en-Provence, Member of the Academy of Aix-en-Provence
58. Christian Marchal, Astronomer and Mathematician, Former Research Director at the French National Office for Aerospace Studies and Research
59. Paolo Martinengo, Applied Physicist, Senior Staff Member in the Experimental Physics Department, Detector Technologies Group, CERN
60. Patrick Mellett, Architect and CEO
61. Marc le Menn PhD, Head of Metrology-Chemistry Oceanography Lab, Brest
62. Jean-Laurent Monnier, Emeritus Research Director, CNRS-Université de Rennes, Research Worker at the CNRS from 1973 to 2013, speciality in Pleistocene Geology in Western Europe
63. Jacques-Marie Moranne, Retired Engineer (Ecole Centrale de Lille), Specialist in Air and Water Purification, Chemical and Nuclear Engineering
64. Serge Morin, Emeritus Professor Geography at Université Michel de Montaigne, Bordeaux, Honorary Mayer of Branne
65. Cédric Moro, Geographer on Natural Hazards Management, Co-Founder of Visov, a NGO in Civil Defense
66. Philippe Morvan, Engineer ENSTA and Génie Maritime, specialist in Software Development
67. Charles Naville, R&D Exploration Geophysicist, IFP Energies Nouvelles
68. Michel le Normand, Emeritus Professor of Botany and Plant Pathology and Chairman of Plant Production Department, National Superior School of Agronomy, Rennes
69. Rémy Prud’homme, Emeritus Professor in Economics at University of Paris-Est, Former Deputy-Director, Environment Directorate, OECD
70. Pierre Richard, Engineer ESPCI Paris, Former Research Geochemist at Institut de Physique du Globe de Paris (IPGP)
71. Pierre Ripoche, Engineer INSA in Chemistry, Retired Project Manager in R&D, Expert in High Temperature Plasma for Optical Fiber Process
72. Isabelle Rivals, Associate Professor in Statistics at ESPCI Paris
73. Betrand Rouffiange, Doctor of Medicine, specialized in Radiology
74. Jean Rouquerol, Emeritus Research Director at CNRS Marseille, Expert in Gas Adsorption and Calorimetry
75. Georges de Sablet, Retired Associate Professor at University of Paris Descartes, Formerly in charge of Operating Systems and Networks at IUT Paris
76. François Simonet PhD, Biology, Former Director for Planning and Foresight in a State Agency for Water and Aquatic Ecosystems Management
77. Marcel Terrier, Engineer ENSAEM in Risk Management, Teacher at École des Mines
78. Etienne Vernaz, Former Director of Research of CEA (Commissariat à l’Énergie Atomique) in France, Professor at INSTN (Institut National des Sciences et Techniques Nucléaires)
79. Camille Veyres, Retired Engineer at École des Mines, specialist in Telecommunications and Broadband Networks
80. Brigitte van Vliet-Lanoë, Geoscientist, Emeritus Research Director (CNRS, Université de Bretagne Occidentale), Stratigraphy and Paleoenvironments, Quaternary and Holocene
81. Théa Vogt, Retired CNRS Searcher, Géomorphology, Quaternary Palaeoenvironments, Soil and Desertification Remote Sensing
82. Henry Voron, Retired Civil Chief Engineer, specialized in Water Management