• vortic@lemmy.world
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    10 days ago

    I got back in touch with a friend of mine who who graduated in the same class as me with a B.S. in Physics. When they learned that I’m an atmospheric scientist, their first question was “What’s the deal with Chem trails?”

    Point being, conspiracy theories also infect the educated sometimes.

  • blady_blah@lemmy.world
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    10 days ago

    I had my conspiracy theory ex brother in law explain that chem trails were things Biden added to jets to fight global warming… My response was “shit, I wish that was true!”

    Somehow that wasn’t the answer he was expecting.

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    10 days ago

    When I read /r/teachers and all the trouble they’re having teaching the next generation, this is the sort of thing I imagine is coming. A couple of years ago, GenZ was saying, in essence, “We just need to wait for all the ‘boomers’ to die off, then everything will be better.” No. No, that will just make things worse. GenX leftists are the only ones holding the line, and Millennial teachers are about to give up and walk away, seriously. It’s pretty fuckin’ bad, and it’s clear it’s going to get worse, looking at how many kids are coming up through the school system who can barely read and write and have practically zero attention span or motivation.

    • icosahedron@ttrpg.network
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      10 days ago

      Hi there, gen Z person here. Things are bad but remember that, as always, you only see and hear about the vocal minority. No matter how poor American education standards are, it is irrefutable that Trumpism could not exist without idiots from all generations. The education paradigms we are emerging from cannot possibly be worse than those which produced tens of millions of conservatives and hundreds of millions of nonvoters. This is specifically because of those gen X leftists and millennial teachers you mentioned. We aren’t competing as generations–failures of the past become the lessons of the present because older generations also have smart people. So how do you know gen Z won’t do even better? Everything else aside, growing up under fascism creates widespread discontent. I’d say from personal knowledge that for every one gen Z kid that believes in the system are five who at least recognize it’s broken.

      Now, I won’t pretend to be particularly optimistic either; things are bad. However, I also want to believe that we can and will do better. And maybe I’ll be wrong, but at least I haven’t given up hope.

      • AA5B@lemmy.world
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        10 days ago

        A lot of us realized the futility of the current system and put our hopes on gen z to be better, to rebuild, to have the sense to build the future, not tear it down. For there to be a huge change when the boomers finally give it up.

        Unfortunately this election showed gen z to be just as flawed as the rest of us. It’s getting harder to hope but maybe my kids will help save the world

  • hansolo@lemm.ee
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    10 days ago

    “It’s chemicals!”

    “It’s spider webs of chemicals!”

    “It’s microchips!”

    “It’s sun blocking special metallic smoke!”

    “It’s cancer seeds!”

    • My Mom, an expert on chemtrails
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          I know people who believe all the BS about the chemtrails, and I have started telling them that yes, those are chemtrails.

          And, like a good person I tell that it is Dihydrogen Monoxide.

          Then we go from there.

      • hansolo@lemm.ee
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        10 days ago

        Well, and “it causes cancer” is as well. But not like… It’s raining down cancer on you. More like jet fuel contains known carcinogens.

        It’s more the direct effects. According to my mom, the chemtrails should have…I don’t know, but done whatever it was supposed to be doing by now. A 30+ year timeline for something causing cancer? So less bad than smoking? That’s the metric?

        • Miles O'Brien@startrek.website
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          At least some nutters have the decency to say that it’s mind controlling chemicals, not the “you’ll be dead soon” kind.

          Kind of like the covid vaccine. I should have been dead in 3 6 8 months a year 2 years 3 years 4 years I’ll be dead in 5 years!

          • AA5B@lemmy.world
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            Do they say what purpisebtheyee being mind controlled? How about the impracticality of mind controlling millions of random people with no special access or skills, and you’re not even there to tell them what to do?

            Can’t we at least inject some logic into the chemtrails conspiracy, like it’s a mild sedative to keep you from worry what they’re doing and to keep you from standing up for your rights?

            All those second amendment types talk about how they would repel an unjust government, but they never actually do. It must be the chrmtrsils making them docile

    • Deme@sopuli.xyz
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      The fourth one of those is unfortunately an almost plausible theory. Plenty of people are seriously advocating for studies into Stratospheric Aerosol Injection (SAI) in order to mitigate climate change so that the almighty free market would have more time to fix the problem without any need for systemic change.

      But that wouldn’t be visible to the naked eye :D

      Funnily enough, contrails like all other clouds composed of ice crystals actually warm the planet up by letting shortwave radiation from the sun through while reflecting longwave (infrared), effectively trapping heat. Thcker and lower clouds are more effective at reflecting shortwave radiation.

      • hansolo@lemm.ee
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        10 days ago

        Yes, but the conspiracy theory version is that it’s a scam to further the scam that is climate change. It doesn’t make any sense.

        • MonkeMischief@lemmy.today
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          9 days ago

          doesn’t make any sense.

          My theory?

          The real conspiracy: It always goes back to the desires of capital.

          Why is it always that climate change is a huge con job and it’s all a secret control plan that we…need to stop burning and breathing known carcinogens?

          Oh, because the evil shadow government orgs like the EPA and OSHA want to take all our good ol’ jobs (tey derk er jurbz!) with their “regulations” and “standards” and “penalties for pollution” right?

          And they’re trying to make America “less great” by no longer being a mass-polluting post-war economic powerhouse! Think of the lost profits! Think of the widespread misery and poverty wrought by a secret New World Order of…(Paper flip) corporate regulation! What’s next? Unions?!

          Yes, chem trails are ultimately a path to such horrors as a less wealthy C-suite and not putting clean air on the commodities exchange market. (gasp)

          …And all these conspiracies are seeded and peddled by the very sources that told people to take veterinary dewormers or inject sanitizer to cure a virus, have brought us the highest unemployment rates seen in a century, dismantled and fired safety regulation and watchdog agencies (deh DERK-A-DURRBS!), are trying to bring back child labor and company towns, and conveniently rail against taxation which they dodge anyway.

          • hansolo@lemm.ee
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            9 days ago

            Sure, but I think the cultural component of Agent Orange had a lot to do with it as well. That’s why it’s always sprayed by planes.

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    I literally put it together in highschool when someone mentioned it to me after learning about how clouds form from nuclei.

  • kamen@lemmy.world
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    This thing is real, they’re spreading dihydrogen monoxide vapours everywhere. Moreover every single dead person has the same thing in their body. Coincidence? I think /s

  • Smoogs@lemmy.world
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    10 days ago

    Meanwhile space x makes a flare and has falling debris , MAGA: gotta buy a cybertruck and drive it into ocean to show support

  • Thorry84@feddit.nl
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    10 days ago

    On the other hand, we have seen exhaust being very efficient in distributing chemicals with adverse health effects across the planet. Leaded gasoline was a huge oopsie that still has adverse health effects today.

    • Eheran@lemmy.world
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      Does it still cause harm? Or are people “just” still harmed by the exposure back then?

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        I think it has gotten a lot better in the past 10 years, but there are still a lot of places where there is too much lead in the environment. It doesn’t degrade at all, so unless it’s dealt with it just stays there. Given we’ve only gotten rid of leaded gasoline less then 3 decades ago, the effects are still very much there.

      • jjjalljs@ttrpg.network
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        I’ve read that most of the lead from leaded gasoline is still in the environment, where it does cause harm. It it’s in the soil, and that can get into people through a variety of means.

        • AA5B@lemmy.world
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          I don’t know if it’s universal but here every kid is tested for lead. When we did that, our pediatrician warned not to grow vegetables within 10’ of the house.

          For any house in the us built before mid 1970s you most likely had lead exterior paint Which would contaminate the soil. However they weren’t concerned about it still being concentrated enough to harm people directly, only if you ate contaminated vegetables

          The lead will never go away, but it does disperse, mix in, get covered over time

            • AA5B@lemmy.world
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              Northeast us. A big distinction is we were built out before most of the country. The land has been settled longer and you’re much more likely to find houses that have been around longer. Even when you find modern houses, they are likely on a lot previously having an older house. So, yeah, lead contamination is more likely than areas with more recent growth

              I have absolutely no idea how common lead testing is, but I also know most of the region trends blue, more likely to be aware of potential public health issues and do something about it

      • JohnDClay@sh.itjust.works
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        General aviation still uses leaded gas almost exclusively. It’s really hard to qualify replacements though the FAA, and airports don’t want to carry multiple fuel types.

  • JeSuisUnHombre@lemm.ee
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    Here’s a new clearer statement to express my thoughts on the matter.

    Contrails are visible and normal and fine. I probably don’t fully understand the science behind them, but I realize what we are seeing is water vapor.

    Chemtrails are also real though. They are invisible to the naked eye and are directly contributing to global warming as well as some health concerns that are hard to quantify. They are not some conspiracy to control or disable the masses. The exhaust of cars and especially planes leave a trail of harmful chemicals behind them. The reason for this is because we care more about convenience and money than we do about the ecosystem we live in.

    I personally believe pointing out that dichotomy is more useful than laughing at people who are misinformed.

    • mhague@lemmy.world
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      Contrails are assholes. They are too thin to reflect sunlight, but they soak up and trap heat. They form a blanket and contribute a ton to global warming.

    • Stalinwolf@lemmy.ca
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      Chemtrails are broadly believed to be nefarious chemicals that alter everything from weather (to facilitate global warming, not to prevent it) to human/animal hormones. While exhaust is no doubt harmful, when conspiracy theorists speak of chemtrails, they are speaking of shady government operatives intentionally loading the planes with experimental chemicals that are meant to be rained down onto the masses.

      • Michael@slrpnk.net
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        Can you blame them when the US government has directly experimented on the American populace in past?

        e.g. https://en.m.wikipedia.org/wiki/Operation_Sea-Spray

        From the page:

        Between 1949 and 1969, open-air tests of biological agents were conducted 239 times.

        239 open-air tests of biological agents in a 20 year period. Many, many people are still alive from that time period. It’s not that long ago.

        Or more broadly, just look at this page: https://en.m.wikipedia.org/wiki/Unethical_human_experimentation_in_the_United_States

        Do those pages inspire trust in the government and military? Would you know if you were being experimented on and gaslit?

        Corporations engage in similar unethical behavior, like putting ingredients that are known to be toxic or harmful to human health in products we consume or put on our bodies.

        Instead of blaming or name-calling people who are paranoid or suspicious, we need a society with a greater focus on human rights — with more regulation and oversight. A society that inspires trust, with the facts, ethics, and independent review to back it up.

        • Psychadelligoat@lemmy.dbzer0.com
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          Instead of blaming or name-calling people who are paranoid or suspicious

          You’re leaving out the massively important fact that a basic science fact that one can experiment and experience themselves on a cool morning is enough to destroy these idiots. If your world view is that fragile then you deserve all mockery you get for holding it continually

          • Michael@slrpnk.net
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            Why go out of your way to disprove them, laugh at them, or name-call them? You can just empathize with them.

            For me, I’d rather address why the government HAS felt it had the right to experiment on us. I can NOT blame these individuals for treading into delusion with our current system being the way it is, especially considering the history.

            • Psychadelligoat@lemmy.dbzer0.com
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              Why go out of your way to disprove them, laugh at them, or name-call them

              They’re willingly living in stupidity. If we just let people do that we get people like Trump, so Id rather avoid that

              I can NOT blame these individuals for treading into delusion

              Neither can I, but as I said you’re purposefully ignoring a big part of what’s being discussed: the part where they don’t ever tread back out of delusion. There’s 0 defense for that

              • Michael@slrpnk.net
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                The Clinton campaign and Democratic National Committee called for using far-right candidates “as a cudgel to move the more established candidates further to the right.” Clinton’s camp insisted that Trump and other extremists should be “elevated” to “leaders of the pack” and media outlets should be told to “take them seriously.”

                Hillary Clinton, the DNC, and mainstream media played a pretty big role in Trump’s rise to power. Everybody is responsible for his rise to power, but the facts are facts. They intentionally elevated him.

              • Michael@slrpnk.net
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                They’re willingly living in stupidity. If we just let people do that we get people like Trump, so Id rather avoid that

                These people don’t have power over others like Trump.

                Neither can I, but as I said you’re purposefully ignoring a big part of what’s being discussed: the part where they don’t ever tread back out of delusion. There’s 0 defense for that

                You aren’t responsible for other’s beliefs. You are loosely reveling in their suffering, whether you realize it or not. They are very concerned and are likely vulnerable individuals.

                Plenty of things happen in this world that each respective populace doesn’t consent to.

                Seriously, why single them out for going a little crazy? It’s not like I haven’t pointed at somebody and laughed in the past, so no judgement here, but the whole system and world order is nuts and we need something new.

                If you are worried about people holding factually incorrect or wrong beliefs, e.g. delusions, then advocate for decentralized media, unbiased news organizations, etc. Help elevate voices that help others to climb out of their delusions and fear.

                • Psychadelligoat@lemmy.dbzer0.com
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                  These people don’t have power over others like Trump.

                  These are the people voting Trump in, dude, you cant actually be this dense

                  You aren’t responsible for other’s beliefs

                  No, but I do try to make the world a less stupid place when I can

                  You are loosely reveling in their suffering, whether you realize it or not.

                  If they’re too stupid to learn basic science then I reeeeally don’t care

                  They are very concerned and are likely vulnerable individuals.

                  Ok? They’re also very stupid individuals, I don’t care at all what makes them believe the blatantly stupid thing, only that they refuse to accept reality

                  Seriously, why single them out for going a little crazy?

                  Because it’s a very obvious and easy one to point out. There are posts about other delusions all the time, this one just happened to be about these specific people

                  If you are worried about people holding factually incorrect or wrong beliefs, e.g. delusions, then advocate for decentralized media, unbiased news organizations, etc.

                  I also do this. Weird of you to assume that someone on Lemmy doesn’t just because they also don’t respect people who refuse to think

                  You’re doing an awful lot of defending of people who are choosing to behave the way they do, it’s weird. Gonna file you in with them and call it a day, you don’t seem to be too far from them in the ol’ comprehension skill

    • lime!@feddit.nu
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      that’s not a workable strategy because when you redefine terms like that you sound just like a conspiracy theorist. exhaust gases are not “chemtrails”, they’re exhaust gases. they’re dangerous and everywhere, but they’re not a secret government conspiracy.

      we don’t need a “new way” to talk about things with people who refuse to understand.

      • Bytemeister@lemmy.world
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        10 days ago

        If you loosely define chemtrails as “a trail of chemicals” then almost everything has chemtrails. Fuckkin ants have chemtrails, it’s how they communicate and navigate.

        Chemtrail conspiracists literally think that airplanes are full of 55 gallon drums of chemicals with the express purpose to harm or feminize the populace to prevent people from opposing the government.

  • JeSuisUnHombre@lemm.ee
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    Nah, plane exhaust is real and killing the planet. Just because the contrails are science and not doing mind control doesn’t mean they’re not still bad.

    • Lucien [he/him]@mander.xyz
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      Well, it’s not jet exhaust you’re seeing, though. It’s water vapor in air that’s been compressed in a jet engine and then quickly decompressed out of the back, which causes the air to cool thus condensing the water vapor into droplets similar to those in a cloud.

      • yesman@lemmy.world
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        I think it might be more about temperature differences than pressure differences. That is to say hot exhaust cools rapidly and any water vapor condenses. Some aircraft leave no contrails, depending on atmospheric conditions.

        Here is a chart to predict contrails on a high-bypass jet engine

        And here are aircraft leaving contrails without any jet engines

        And some more leaving no contrails at all

        • Lucien [he/him]@mander.xyz
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          The temperature difference is caused by the pressure difference. Airplanes have always caused pressure differentials. Jet engines just cause more pressure than wings and propellers do.

          • Eheran@lemmy.world
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            It has next to nothing to do with pressure, let alone temperature drop due to expansion. There are 2 things:

            1. When each one quantity of cold and warm air mix, the temperature of the mixture is almost exactly the midpoint (average), as the heat capacity is almost a constant.
            2. Vapor pressure of the water is a function of temperature and scales FAR more than linear.

            So now when the hot, humid (burned hydrocarbon) air of the exhaust mixes with cold air the temperature drops a bit, but the vapor pressure drops massively. When conditions are right, the vapor pressure is now below the amount of vapor pressure that is actually present -> condensation.

            vapor pressure over temperature data, note how it changes more than 2 orders of magnitude over only 100 K.

            Just found this from NASA.

      • mhague@lemmy.world
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        And those clouds, being too thin to reflect sunlight but able to trap heat, form a kind of blanket around earth, greatly contributing to global warming.

        If I understand it correctly, you could magic away the exhaust and have perfectly clean contrails, and they would still warm the planet.

        • JcbAzPx@lemmy.world
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          9 days ago

          Close, the visible parts do reflect sunlight, but what gets through still gets trapped by the greenhouse gasses. You can see the effect in the aftermath of the mass grounding of aircraft on 9/11. There were crystal clear skies and a relatively large jump in temperature compared to just before and after the grounding.

      • Thorry84@feddit.nl
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        Another effect is micro-particles from the jet exhaust that form a lot of nucleation sites, this allows the vapor in the air to condense into tiny droplets more easily.

      • JeSuisUnHombre@lemm.ee
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        Just because the contrails are science

        I understand that part, doesn’t stop them from containing the plane exhaust which is directly contributing to global warming

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        Incorrect. The condensation you are seeing in the air is a product of combustion. If no water was added to the air, then compressing it and decompressing it would not create a cloud or vapor trail.

        Edit: Fine. It’s mostly incorrect.

        https://en.wikipedia.org/wiki/Contrail

        Yes, the lower pressure can create a very temporary contrail, and in rare situations where the engine exhaust also cools down below freezing before it reaches ambient pressure, ice crystals can form and create a longer more visible contrails. Realistically, what you are seeing in a contrail is water vapor from combustion. Seriously, H2O and water are the largest products of combustion, and it’s like 99% of what you are seeing behind aircraft.

        • Deme@sopuli.xyz
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          The longetivity of a contrail is determined by the atmospheric conditions. In sufficiently dry air no contrail is formed as the water introduced by the combustion isn’t enough to raise the frost point to the ambient temperature. More humidity means that the contrail may form and even persist for a while without sublimating away (Cirrus homogenitus). If the air is even more humid, the contrail may even start to grow and change shape (turning into Cirrus homomutatus). This last case is what I suspect gets the foil hats most riled up about “chemtrails”.

          Bands of Cirrus homomutatus

          https://cloudatlas.wmo.int/en/explanatory-remarks-and-special-clouds-cirrus.html

  • boolean_sledgehammer@lemmy.world
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    8 days ago

    The really depressing thing about this, and many other “unexplained” aerial phenomena, is that it demonstrates how many people just never fucking look up at the sky.

  • NotASharkInAManSuit@lemmy.world
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    9 days ago

    Meanwhile, the government: “That’s fucking stupid. We don’t poison you with the air, that would be inefficient. We have to breathe that, too. We just poison the water and the soil, and if you’re a target we will just pick you up off of the street like a stray cat, we’ve always been very up front about that.”