Analysis of information sources in references of the Wikipedia article "Solar radiation modification" in English language version.
Across several major powers and international forums, the growing momentum in solar geoengineering technologies, assessments, and research and development is raising urgent ethical, justice and human and environmental rights issues that need to be addressed.
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.'
there are no books on the subject to date. Reports on contrails are carried by dedicated websites...Mainstream news agencies rarely report on concerns over contrails, and when they do it is in terms of anti-government "paranoia". When USA Today ran a contrail story it likened the story to something out of The X-Files, arguing that it was only those who are suspicious of the government who believe that lines in the sky are evidence of malfeasance. Some suggested that they are trying to slow down global warming with compounds that reflect sunlight into the sky.
Some groups and individuals erroneously believe that the long-lasting condensation trails, or contrails, left behind aircraft are evidence of a secret large-scale spraying program. They call these imagined features "chemtrails".
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: CS1 maint: date and year (link)even if successful, SRM can not replace but only complement CO2 abatement.
even if successful, SRM can not replace but only complement CO2 abatement.
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: CS1 maint: DOI inactive as of February 2025 (link)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 vapor trails which persist for longer than usual or disperse to cover a wide area, are just normal contrails.
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: CS1 maint: date and year (link){{cite journal}}
: CS1 maint: numeric names: authors list (link)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 vapor trails which persist for longer than usual or disperse to cover a wide area, are just normal contrails.
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, harm humans, or 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.
"'Skeptics of solar geoengineering experimentation as well as proponents are rarely unified,' says Kevin Surprise, a lecturer on environmental studies at Mount Holyoke College. "I have not seen a single person in the field say this is a good idea.'"
As table 4.3 shows, a continuation of the current NDC scenarios would result in an increase in the emissions gap in 2035 of 4 GtCO2e for a 2°C warming limit, and 7 GtCO2e for a 1.5°C limit, whereas a continuation of the mitigation effort implied by current policies would lead to an even wider gap in 2035.
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.'
Across several major powers and international forums, the growing momentum in solar geoengineering technologies, assessments, and research and development is raising urgent ethical, justice and human and environmental rights issues that need to be addressed.
Some groups and individuals erroneously believe that the long-lasting condensation trails, or contrails, left behind aircraft are evidence of a secret large-scale spraying program. They call these imagined features "chemtrails".
even if successful, SRM can not replace but only complement CO2 abatement.