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I will dive into the deep with this story, not just about Brennan but for chemitrails at all. Need some time to prepare everything but soon...

This might help. There is a copy of the Brennan video in the post. Also an explanation of the use of spectroscopy in identifying the contents of the atmosphere which is also continued in the comments.

https://steemit.com/geoengineering/@lifeworship/chemtrails-the-truth-and-the-conspiracy-theory

Thanks for your share @lifeworship