Quote:
Originally Posted by unlimited mind
i am quite certain they are not persistent contrails. i have spent many days on top of 6000 ft peaks taking pictures and watching these planes race back and forth across the sky...
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interesting read. ever see them at night? would also love to see video of a plane spraying a pattern (actually turning ~180 and continue to spray). i still linger on the question that they may be used to block sunlight, thus have an effect on the warming and subsequent cooling of the earth (which i believe has little to nothing to do with C02 -- other planets are warming as well according to what i've read).
if aerosol trails CAN be seen at night, especially in the early evening just after it gets dark, then i would tend to think they are not for effecting climate change, at least not as far as blocking sunlight.