Well, if there is a steep difference in the atmosphere between a dry area and humid one there wouldn't need to be alot of difference in the attitude.
20+ years of the Chemtrail conspiracy and no evidence of chemtrail planes/tanks/personnel etc.... Some of the planes that leave persistent contrails here in Finland take off/land at the Helsinki-Vantaa airport but no one ever has noticed any shady goings on there...
Let's see if THEY have programmed ChatGPT with anti-chemtrail propaganda:
"why do some planes leave persistent contrails and some dont even when they appear to fly close to each other?"
ChatGPT
The formation of persistent contrails by airplanes, and the variation in their occurrence even when planes seem to be flying close to each other, can be attributed to several factors:
Atmospheric Conditions: The most critical factor is the atmospheric condition, particularly the humidity and temperature at the altitude the plane is flying. Persistent contrails form in regions of the atmosphere where the air is supersaturated with respect to ice. This means that the air contains more water vapor than it can hold in the form of ice at that temperature and pressure. If one plane is flying through a patch of air that meets these conditions while another nearby is in drier air, one will leave a persistent contrail and the other will not.
Altitude Differences: Even small differences in altitude can result in significant differences in atmospheric conditions. Two planes that appear to be close together may actually be at slightly different altitudes, encountering different environmental conditions. This can result in one plane leaving a persistent contrail while the other does not.
Aircraft Engine Types: Different types of engines emit different amounts of water vapor and particulates. Engines that emit more water vapor and particulates are more likely to produce contrails, as these particles provide nuclei for ice crystal formation. Older engines tend to produce more particulates, and thus more conducive to contrail formation.
Temperature and Pressure: The temperature and pressure at the flight altitude also play a crucial role. Colder temperatures can lead to the formation of ice crystals from the water vapor in the exhaust, which contributes to persistent contrail formation.
Aircraft Speed and Aerodynamics: The aerodynamics of the aircraft can also influence contrail formation. Variations in aerodynamic efficiency can lead to differences in the formation of wingtip vortices and the associated moisture condensation.
In summary, while two planes may seem to be flying close to each other, differences in altitude, atmospheric conditions, engine types, and aircraft characteristics can lead to one producing persistent contrails while the other does not. Understanding these factors is crucial for studies related to aviation's environmental impact and for developing strategies to mitigate it.
Now tell me, are these claims just lies? And if so, prove it.