Scientists Say Airplane Contrails May Be Accidentally Geoengineering the Climate

contrails__By Derrick Broze

Chuck Long is a researcher with the Cooperative Institute for Research in Environmental Sciences (CIRES) at the NOAA Earth System Research Laboratory at the University of Colorado in Boulder. At the recent American Geophysical Union Fall Meeting, Long and his team released their paper, “Evidence of Clear-Sky Daylight Whitening: Are we already conducting geoengineering?” The analysis found that vapor from airplanes may be altering the climate through accidental geoengineering.

According to a 2013 congressional report:

The term ‘geoengineering’ describes this array of technologies that aim, through large-scale and deliberate modifications of the Earth’s energy balance, to reduce temperatures and counteract anthropogenic climate change. Most of these technologies are at the conceptual and research stages, and their effectiveness at reducing global temperatures has yet to be proven. Moreover, very few studies have been published that document the cost, environmental effects, socio-political impacts, and legal implications of geoengineering. If geoengineering technologies were to be deployed, they are expected to have the potential to cause significant transboundary effects.

In general, geoengineering technologies are categorized as either a carbon dioxide removal (CDR) method or a solar radiation management (SRM) method. CDR methods address the warming effects of greenhouse gases by removing carbon dioxide (CO2) from the atmosphere. CDR methods include ocean fertilization, and carbon capture and sequestration. SRM methods address climate change by increasing the reflectivity of the Earth’s atmosphere or surface.

Aerosol injection and space-based reflectors are examples of SRM methods. SRM methods do not remove greenhouse gases from the atmosphere, but can be deployed faster with relatively immediate global cooling results compared to CDR methods.

Long and his team were investigating the changing amounts of sunlight that reach our planet,  processes known as “brightening” or “dimming.” According to CIRES, “Brightening and dimming are overly simplified words that signify increases and decreases in how much light from the Sun (measured as “irradiance” in watts/m2) reaches the planet’s surface — and these measurements are often analyzed under cloud-free conditions.”

In the new study, Long suggests high-altitude “ice haze” may be responsible for a whitish tint to the blue sky. “I’m talking about a sub-visual contrail-generated haze of ice, which we do not classify as a cloud but gives blue sky more of a whitish tint,” Long told CIRES.

“Contrail” is the name for the thin, line-shaped “clouds” sometimes produced by aircraft flying at altitudes several miles above the Earth. The trails are produced from water, turned into ice crystals, and can last several seconds, minutes, or possibly hours. These crystals leave behind a thin, icy haze, scattering the sun’s light in a way similar to Solar Radiation Management geoengineering projects. Long’s research may prove geoengineering is already taking place, albeit inadvertently.

More research is needed before Long can conclusively show much of an effect contrails are having on the climate, or whether they are leading to cooling or warming. However, Long says this is another way humans are altering the climate and, he says, “you can see this with your own eyes.”

One reason this story is peculiar relates to the controversy over whether geoengineering programs are already active. This is what is derogatorily called the “Chemtrails Conspiracy.” Essentially, some believe geoengineering is actively taking place in our skies, and the “contrails” are actually geoengineering programs covertly being carried out. The “chemtrails” label comes from the portion of the crowd that believes these programs are delivering dangerous chemical additives to the food, water, soil, and humans below for nefarious purposes.

Regardless of where you stand, it’s important to know the United States government has a history of weather modification. In a 1996 document entitled “Weather as a Force Multiplier: Owning the Weather by 2025,” the U.S. Air Force discussed a number of proposals for using weather as a weapon. The Environmental Modification Treaty was signed by the United States and other nations to halt global weather modification.

But the government did not simply research these ideas. It actually implemented them — prior to its official musings on whether it could. During the Vietnam War, the U.S. government operated covert weather modification programs under Operation Popeye. The government does not only experiment with technology in foreign countries; it likes to try it at home, as well. In 2012, it was revealed that the U.S. Army sprayed toxic chemicals over the skies of St. Louis without informing the public.

Anti-Media also recently reported on Professor Alan Robock’s theory that the Central Intelligence Agency is using the weather as a weapon of war.

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So are geoengineering programs already active? Perhaps what Chuck Long and his team are noticing is not that standard contrails are causing geoengineering, but that geoengineering programs are already live and changing the climate.

Indeed, at least one previous study has found that geoengineering could cause the white haze and loss of blue skies that Long is observing. According to a report by the New Scientist, Ben Kravitz of the Carnegie Institution for Science has shown that releasing sulphate aerosols high in the atmosphere would scatter sunlight into the atmosphere. He says this could decrease the amount of sunlight that hits the ground by 20%, as well as make the sky appear more hazy.

Ironically, the promotion of geoengineering might actually cause more harm than good, including an increase in droughts. In February 2015, an international committee of scientists released a report stating that geoengineering techniques are not a viable alternative to reducing greenhouse gas emissions to combat the effects of climate change. The committee report called for further research and understanding of various geoengineering techniques, including carbon dioxide removal schemes and solar-radiation management before implementation.

The scientists found that Solar Radiation Management, or albedo-modification techniques, are likely to present “serious known and possible unknown environmental, social, and political risks, including the possibility of being deployed unilaterally.” The report was sponsored by the National Academy of Sciences, the U.S. intelligence community, NASA, National Oceanic and Atmospheric Administration, and the U.S. Department of Energy.

According to a 2013 study published in the Journal of Geophysical Research: Atmospheres, if geoengineering programs were started and then suddenly halted, the planet could see an immediate rise in temperatures, particularly over land. The study, titled, “The Impact of Abrupt Suspension of Solar Radiation Management,” seems to indicate that once geoengineering begins, the programs cannot be suspended without causing the very problem the engineering was intended to solve.

On the heels of the Paris Climate Conference, the topic of geoengineering is a contentious one. Dan Farber, professor of law at Berkeley University, recently suggested the only way the world can hope to achieve the conference’s goal of holding the global temperature decrease “well below” 2°C would be to implement geoengineering programs “such as injecting aerosols into the stratosphere or solar mirrors.”

“I’m not particularly a fan of geoengineering, and I will be happy to be wrong about this,” Farber wrote. “Otherwise, though, if we are serious about those temperature targets, we may end up with little other choice than layering some geoengineering efforts on top of aggressive emission cuts.”

What are your thoughts? Do you believe geoengineering programs are active? Do you believe they are necessary to save the planet from destruction? Leave your comments below.

This article (Scientists Say Airplane Contrails May Be Accidentally Geoengineering the Climate) is free and open source. You have permission to republish this article under a Creative Commons license with attribution to Derrick Broze and Anti-Media Radio airs weeknights at 11pm Eastern/8pm Pacific. Image credit: If you spot a typo, email

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27 Comments on "Scientists Say Airplane Contrails May Be Accidentally Geoengineering the Climate"

  1. Except it’s not the contrails that is doing this, it is the Chemtrails that is doing it.

    • Yes, they are spraying us with toxic aluminum and barium which ruins our health!

    • On a serious note, You are correct that Chemtrails are BAD, and should be researched for reduction of pollution. Vapor contrails (frozen or not) are IDENTICAL to clouds, and have NOTHING to do with sky color. Lots of data proofs, including My ’60s OGO, POGO and EOGO data

  2. Derrick Broze, let’s rephrase the ending questions, shall we.

    What are your thoughts? Do you THINK geoengineering programs are active? Do you THINK they are necessary to save the planet from destruction? Leave your comments below.

    As science does not have to do with BELIEF, neither should you ask for belief within the comments. Try to get people to think, rather than to believe, and the world might just wake up a little.

  3. Yeah, I saw Alex Jones pushing this story as well. I’m not trying to burst anyone’s bubble here, but this idea that jet airplane exhaust may be performing a type of inadvertent weather modification is not new. In the historical weather modification literature, this area of study pops up again and again. Most of the time, it was applied to high-altitude supersonic jets such as the Concorde. But it was repeatedly applied to commercial passenger aircraft as well.

    This latest disclosure is hardly a disclosure at all. They are simply regurgitating the theme of a long-studied area. It is an attempted diversion. Keep firing.

  4. giovannino settebellezze | December 23, 2015 at 7:57 am |

    C’mon! The scammers of the globo warming have been debunked. The illegal geo engineering is a reality in Europe since 1995, even some earlier in the US.
    The Project Teller tells the whole story about heavy metals, radioactive particles, modified bacteria etc sprayed in the sky at ANY altitude.
    For those who ignore it, Turbo Fan engines (the first choice on todays’ aircrafts) have a high by-pass ration (meaning, 80% of intake area being blown out of the same engine) which doesn’t allow any CONTRAIL top be formed.
    You will want to know then that real Contrails can appear ONLY on stringent meteo conditions:

    -air cooler than – 40° C
    -relative humidity of 70%
    -altitude of 24.000 Ft

    you’ll never see a real Contrail released in our skies, should u live for 100 years! They are killing Nature and us.

  5. weather manipulation has been a wet dream of the military for hundreds of years. Chemtrails are full of aluminum, barium and flyash particulates (very very small – nano size) and associated w/ haarp and gwen – capable of heating any particular area and (possibly) bending radio frequencies. It would be nice if the epa would actually get off of their backsides and investigate this – Mike ya out there in epa land – time to put yer latte and scone down – might be able to make up for some of the Colorado animas river spill that y’all caused – uhhh nope never mind go back to yer latte.

    • EPA, FDA, USDA are all administrated by the minions of Monsanto. Clarence Thomas was the head lawyer for Monsanto before they got him appointed to SCOTUS ; which he then used to cast the deciding vote on patenting seed so they could control the world’s food.

  6. A few weeks ago they tried to spin the story, TPTB are considering Geo-engineering, acting although it’s not already happening. Now, we have the above article trying to spin,
    “Scientists Say Airplane Contrails May Be Accidentally Geoengineering The Climate”
    Here, I fixed it for them.,
    “Airplane chemtrails are causing drought, and creating planet havoc through weather manipulation via HAARP.”

    • Thank you. I would have simply given you an upvote but even Activist Post practices totalitarianism by requiring that one “Log In” simply to cast a vote. I will never join fb or twitter or any the intel collection agencies. Only through anonymity does man have any chance of honestly discussing important matters in today’s world. Ditch the Log In requirement, AP. The spraying must be stopped and nothing will happen until people GET ANGRY.

      • Activist Post has made it quite clear they have no intention of doing anything to support anyone in their effort to express themself and have freedom of speach. They actively engage in the censorship of the truth and comments they do not agree with and find politically incorrect. Activist Post serves the new world order and the powers that be.

  7. We know they have been geoengineering. It’s no accident at all. They have no right to be raining down their poisons on us. It’s a crime against all of humanity! There is no alrtuistic motive here.

  8. Even a stopped clock…

  9. I don’t have to “believe”, my eyes tell me most days that they are doing it – spraying us.
    Seeing is believing I guess.

    • Good comment. I was a doubter until a few months ago when I started looking up and seeing the same thing, followed by the after-effect (haze). Its depressing that so many ppl go about their daily lives and never look up.

  10. giovannino settebellezze | December 23, 2015 at 3:54 pm |

    Not only. Remember aluminum is the main case for alzheimer to
    skyrocket. Barium affects the heart. Currently many people are
    experiencing various troubles. Weather manipulation does not involve
    simply the destruction of humidity & clouds or the blockade of jet
    streams…Sometimes they provoke extended showers which prove to be
    dangerous or lethal for the recipients (and the soil) in many ways. They
    use the renown cloud seeding technique, inseminating the clouds with
    modified bacteria, viruses and acars (and heavy metals). Morgellons
    seems to be directly connected to that very cause.
    particles too, are sprayed. Then we have Elf and MW waves from
    local/embarqued ionospheric heathers which get the job done. Yes,
    indeed: a nice step for ‘modern’ humanity. Monsanto teaches.

    Check geo engineering watch on this.


    HAARP / Manmade Disasters, Military, New World Disorder

    Chemtrail Pilot Blows the Lid Off OPERATION INDIGO SKYFOLD:

    geopolitics dot co

  11. BTW: here in Colorado there are bunches and bunches of beetle killed trees – I’m saying this – lack of sunlight has weakened the trees so much so that they are unable to take on the beetle. Maybe the sprayers will kill the trees from the top down. No telling what all the land and sea critters are ingesting and passing on – let alone us bipeds.

    Hey dumbass sprayers – yer kids are inhaling the same thing all breathing critters – STOP!

  12. I hope this absurd B.S. AT LEAST GETS THIS PHONY A PROMOTION. EVERYBODY knows its the reflected heat that comes off flocks of crows, geese, starlings and ravens that DARKEN the skies and cause GLOBAL WARMING. These birds are called,”GREENHOUSE GEESES.

  13. For about a decade, citizens around the world who recognized the sudden, dramatic change in the sky’s appearance, have documented the change by video recording (at altitude and on ground) and photographing aircraft emissions. It was then discovered the US Patent and Trademark Office housed over 100 weather modification patents dating back to the 1920’s. More current patents revealed a combination of toxic metals which would be aerosolized using nano technology, to act as a reflective curtain against the sun’s rays. The patents indicate aircraft and rockets would be the primary means to inject these toxins into the atmosphere. The repercussions of breathing toxic metals over time concerned many who recognized this new, unfamiliar sky so they started submitting samples of their blood, rainwater, snow and soil to certified labs. The results were alarming and continue to be alarming as the concentration levels of metals showing up in the test results continue to rise and continue to match perfectly to the metals listed in geoengineering patents. Illnesses and disorders related to environmental exposure to these same metals have exponentially rose in the past decade. How’s everyone’s memory doing? I won’t list anymore key points, although I could, that expose these programs were implemented with zero public consent or oversight many years ago. The article above is dated Feb. 3, 2016 indicating scientists are suspicious of condensation from combusted jet fuel unintentionally causing geoengineering. My question is, “Why has it taken educated scientists a decade longer than average citizens to recognize geoengineering taking place?” Could it be because they know everyday more more people are waking up to the fact they’re being assaulted, forcing them to go public with a pathetic reason why the sky looks like we’re living in the Twilight Zone? Their explanation is because ice crystals are consuming us on a warming planet. You can bet those educated scientists purporting the atrocity in the sky is water will have no need to bother with pesky lab tests. God have mercy on us!

  14. It’s too bad that any serious discussion of geoengineering proposals, aircraft pollution, and the effects of contrails is drowned out by baseless claims and pseudoscience from those who believe in the “chemtrails” conspiracy theory.

  15. Just a bunch of Scientific lingo about nothing.

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