Giaiotti Dario is a physicist employed by the Regional Meteorological Centre (OSMER) Regional Agency for Environmental Protection of Friuli Venezia Giulia. His resume is here .
[...] in recent years has increased the frequency with which the media have covered the subject of "chemtrails." In my opinion, this increase comes from the aura of mystery that has been attributed to this optical phenomenon that often occurs at the passage of jets in the lower atmosphere. As has always happened since the earliest times the striking phenomena, which are under the eyes of all or well known, but the explanation is not intuitive or is not given for granted by public opinion and incontrovertible, they lend themselves to interpretation among the most diverse, often imaginative, or at least unverifiable. It is my conviction that the rumors are so widespread on this phenomenon are due precisely to this kind of interpretation.
Although my belief about the nature of the trails are not able to objectively confirm or discredit the assumptions under which many would be left in the sky by aircraft in an attempt to change the climate or whatever, so rather than respond directly to the question I prefer to suggest some themes for reflection.
First, though it were a plot for an action so important and if this is too obvious to the scientific community - given the easy verification through objective measures or qualitative assessments of principle - the answer to your question has already been spread to every corner of the planet with all the power they are capable of modern media means. Obviously not, but this should not limit ourselves in thinking on the subject.
First thing you see are the trails in the sky behind an airplane? The simple answer is that it is a visible phenomenon, that is, light coming from contrails, under which we can see them. As you know, and taking into account the physical mechanisms that emit radiation, we can conclude that contrails are visible by reflection of sunlight. For many of the trails that what we observed vediamo, grazie al fenomeno della condensazione, è vapore acqueo presente nell’atmosfera, in forma di goccioline o di cristalli di ghiaccio. Questa condensazione è stimolata dai gas di scarico dei motori, oppure dal rilascio di carburante per questioni di sicurezza.
Si tratta quindi di vere e proprie nuvole artificiali. Ma perché le scie hanno molte forme, colori svariati e tempi di permanenza diversi? Dato che le scie sono delle nuvole, la stessa domanda vale per le nubi. Le nubi modificano la loro forma a seconda dei venti, della temperatura e della presenza di corpuscoli microscopici presenti nell’aria, che possono essere naturali come sali, pollini, polveri, o altro, oppure artificiali, per esempio i residui delle combustion of industrial and so on. The color of the clouds also varies according to their lighting, depth and exposure to sunlight. If we apply these considerations to the contrails left by planes, we should not marvel at the variety of their shapes, colors and time of persistence in the sky.
Unfortunately these considerations do not say anything about the substances emitted from the plane that produced the trail or cloud, if you prefer. It would take steps to determine whether ... Make sure thing? It depends on the assumption that we want to verify. If these are the results of the combustion engine mounted on the plane that produced the trails, they can certainly be provided by casa costruttrice del motore, quindi non serve andarli a misurare in cielo dietro l’aereo che li produce, se si tratta del carburante non utilizzato e che viene rilasciato nell’aria, anche questo è noto.
E se si trattasse proprio di sostanze misteriose, allo scopo di controllare i fenomeni climatici, sostanze che non centrano con i motori degli aerei? Se tutte scie osservate avessero tale causa sarebbe necessario che ciascun aereo avesse un serbatoio supplementare che dovrebbe essere ricaricato periodicamente. Oppure queste sostanze potrebbero essere immesse e mescolate con il carburante, e successivamente espulse come scarto della combustione.
In entrambi questi casi, visto che le scie si osservano su tutte le rotte mondiali, many airlines and / or how many fuel suppliers should be involved? If one were not involved, it could be easily verified by monitoring the air of that company than the other.
And as for climate control? Today, hundreds of scientists work and discuss future scenarios of climate, as a consequence of environmental pollution caused by man. These scientists agree on what will be the general trends of climate over the coming decades, but have also shown that there is wide uncertainty about the details, particularly on the quantitative aspects, such as increase of temperature in different places on the planet, as e quanto varieranno precipitazioni e venti, ecc.
Considerando queste incertezze, quale persona o gruppo di persone assennate investirebbe le risorse che potrebbero giustificare il gran numero di scie osservate senza sapere in che quantità, quando e in che luogo la loro azione si concretizzerà? Di motivazioni per giustificare tentativi di cambiare il clima a piacere se ne possono trovare in abbondanza, ma ogni volta dobbiamo valutarne la verosimiglianza e la congruenza con i fatti concreti che abbiamo a disposizione. Per esempio, l’aumento delle scie degli aerei fotografate o osservate negli ultimi anni sono proporzionali all’incremento del numero di voli effettuati?
Non ho potuto dare una risposta precisa alla domanda she suggested, but I hope that these reflections can help her explore the large amount of information and above all proposed explanations for the trails left by aircraft.
suppose also that, despite not having clearly expressed my opinion, will certainly have understood what I consider plausible the hypothesis of a plot to change the climate.
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