Lol, with articles like this from 2019.

https://www.technologyreview.com/2019/08/09/615/what-is-geoengineering-and-why-should-you-care-climate-change-harvard/

But what is geoengineering exactly?

Traditionally, geoengineering has encompassed two very different things: sucking carbon dioxide out of the sky so the atmosphere will trap less heat, and reflecting more sunlight away from the planet so less heat is absorbed in the first place.

The first of these, known as “carbon removal” or “negative emissions technologies,” is something that scholars now largely agree we’ll need to do in order to avoid dangerous levels of warming (see “One man’s two-decade quest to suck greenhouse gas out of the sky”). Most no longer call it “geoengineering”—to avoid associating it with the second, more contentious branch, known as solar geoengineering.

This is a blanket term that includes ideas like setting up sun shields in space or dispersing microscopic particles in the air in various ways to make coastal clouds more reflective, dissipate heat-trapping cirrus clouds, or scatter sunlight in the stratosphere.

Researchers stress that these experiments aren’t actual geoengineering: the amounts of material involved are far too small to alter global temperatures. Indeed, despite a vast and varied array of online conspiracy theories to the contrary, feverishly spread by chemtrails truthers, nobody is conducting planetary-scale geoengineering today.

Sure lol.

https://physicsworld.com/a/higher-altitude-solar-geoengineering-brings-no-cost-benefit-study-predicts/

Injecting aerosols into the stratosphere at 25 km altitude to mitigate global warming is not as cost efficient as injection at 20 km. That is the conclusion of scientists in the US, who have looked at five possible ways that the aerosols could be delivered to the stratosphere – including modifying a supersonic reconnaissance aircraft and firing “mortar shells” of material from a modified passenger jet aircraft.

The lower portion of the atmosphere (the troposphere) is turbulent with air moving up and down, so scientists believe that aerosols should be injected into the much calmer stratosphere at about 20 km or above. There, aerosols are expected to persist for a much longer time than they would in the troposphere.

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024EF004797

However, this too may prove too late. While global SAI is often portrayed as a possible “emergency” climate intervention, humanity should anticipate a roughly two-decade interval between a funded launch decision and the achievement of substantial global cooling on the order of 0.5°C or 1°C (Smith, 2024). Such a program would require a fleet of several hundred large-payload, high-altitude jets of a type that does not yet exist (Smith & Wagner, 2018). Developing such a prototype aircraft along with sufficiently powerful engines would consume roughly a decade, and then manufacturing the fleet would consume a second decade (Smith, 2024). A gradual ramp-up of deployment could begin at the end of the first decade, but only when the fleet is complete a decade later would the target level of cooling be reached.

We got a spaceplane that apparently can go to the moon.

https://nypost.com/2025/02/25/us-news/space-force-reveals-image-snapped-by-top-secret-space-plane-for-first-time/

But we dont have jets capable of this high altitude spraying. Hell thats exactly how I described it. They spray these trails much higher than the cloud layer and then it oozes out like ink in water sometimes lasting for days. Those arent condensation trails my friend and I never thought they were.

But then again I never claimed to be smart, your prolly talking to one of the only retards on planet earth to get poisoned with refrigerant.

I find it really strange for a dead little corner of the internet that we still get random users coming in time from time to remind us how stupid we are.