Diferencia entre revisiones de «Teoría de la conspiración de las estelas químicas»

 

Estas afirmaciones han sido desestimadas por la [[comunidad científica]]. No hay evidencia de que las supuestas estelas químicas difieran de las estelas de vapor normales a base de agua que dejan los aviones de alto vuelo en ciertas condiciones atmosféricas.<ref name="air force">{{Cita web|url=http://www.af.mil/shared/media/document/AFD-051013-001.pdf|título=Contrails Facts|fecha=13 de octubre de 2005|editorial=US Air Force|urlarchivo=https://web.archive.org/web/20130306001902/http://www.af.mil/shared/media/document/AFD-051013-001.pdf|fechaarchivo=6 de marzo de 2013}}</ref> Aunque los defensores han intentado probar que ocurre una pulverización química, sus análisis han sido erróneos o basados en conceptos erróneos.<ref name="barium">{{Cita publicación|url=http://www.csicop.org/si/show/curious_contrails_death_from_the_sky/|título=Curious contrails: death from the sky?|apellidos=Radford|nombre=Benjamin|enlaceautor=Benjamin Radford|fecha=March–April 2009|publicación=Skeptical Inquirer|volumen=33|número=2|página=25}}</ref><ref name="origin">{{Cita publicación|url=http://www.csicop.org/sb/show/chemtrail_conspiracy|título=The 'Chemtrail Conspiracy'|apellidos=Thomas|nombre=Dave|fecha=September 2008|publicación=Skeptical Inquirer|volumen=18|número=3}}</ref> Debido a la persistencia de la teoría conspirativa y las preguntas sobre participación gubernamental, los científicos y las agencias gubernamentales de todo el mundo han explicado en repetidas ocasiones que las supuestas estelas químicas son de hecho estelas de vapor normales.<ref name="USAtoday20012">{{Cita noticia|apellidos=Watson|nombre=Traci|título=Conspiracy theorists read between lines in the sky|fecha=7 de marzo de 2001|página=A.04|url=http://usatoday30.usatoday.com/weather/science/2001-03-07-contrails.htm|cita=Exasperated by persistent questions, the Environmental Protection Agency, NASA, the Federal Aviation Administration and the National Oceanic and Atmospheric Administration joined forces last fall to publish a fact sheet explaining the science of contrail formation. A few months earlier, the Air Force had put out its own fact sheet, which tries to refute its opponents' arguments point by point. "If you try to pin these people down and refute things, it's, 'Well, you're just part of the conspiracy,' " says atmospheric scientist Patrick Minnis of NASA's Langley Research Center in Hampton, Va. "Logic is not exactly a real selling point for most of them."}}</ref><ref name="TheHill2015">{{Cita web|url=http://thehill.com/policy/energy-environment/235632-epa-confronts-chemtrails-conspiracy-theory|título=EPA confronts 'chemtrails' conspiracy talk|fechaacceso=10 de diciembre de 2016|autor=Cama|nombre=Timothy|fecha=13 de marzo de 2015|sitioweb=|editorial=the Hill|cita=Conspiracy theorists say that government officials or others are using jets to spray harmful chemicals into the atmosphere. They cite the contrails left by jets as evidence of the chemicals. The EPA has added a new notice to its website, which links to a fact sheet explaining that the trails left by jets in the atmosphere are only ice particles and contain no harmful chemicals. “Contrails are line-shaped clouds or ‘Condensation trails’ composed of ice particles that are visible behind jet aircraft engines under certain atmospheric conditions and at times can persist,” says the notice, posted to the EPA’s website Friday. “EPA is not aware of any deliberate actions to release chemical or biological agents into the atmosphere.” Theorists have posited that the chemicals are meant to control the climate, to harm humans or to kill them. The fact sheet from the EPA and other federal agencies like the Federal Aviation Administration and the National Oceanic and Atmospheric Administration was first published in 2000, when the chemtrails conspiracy became popular on the Web. An EPA spokeswoman said the agency frequently receives questions about chemtrails.}}</ref><ref name="Telegraph2013">{{Cita web|url=https://www.telegraph.co.uk/travel/news/Chemtrails-and-other-aviation-conspiracy-theories/|título='Chemtrails' and other aviation conspiracy theories|fechaacceso=11 de diciembre de 2016|autor=Smith|nombre=Oliver|fecha=24 de septiembre de 2013|sitioweb=telegraph.co.uk|editorial=the Telegraph|cita=So persistent is the chemtrail theory that US government agencies regularly receive calls from irate citizens demanding an explanation...The conspiracy theory took root in the Nineties, with the publication of a US Air Force research paper about weather modification...Governments and scientific institutions have of course dismissed the theories, and claim those vapour trails which persist for longer than usual, or disperse to cover a wide area, are just normal contrails.}}</ref> Es importante hacer notar que no se incluye en este término la dispersión de sustancias químicas para fines reconocidos ([[Plaguicida|fumigación]], sembrado de nubes, [[exhibiciones aéreas]], etc.).<ref name="cazaquimicos_chemtrails_eldiario">{{cita noticia|apellidos1=Mas|nombre1=Aldo|título=El negocio conspirativo de los cazaquímicos contra las 'chemtrails'|url=https://www.eldiario.es/economia/negocio-conspirativo-caza-quimicos-chemtrails_0_847966167.html|fechaacceso=24 de diciembre de 2018|editorial=eldiario.es|fecha=22 de diciembre de 2018}}</ref>

 

== Etimología ==