>mfw "It's not dripping"
Snow reabsorbs melt water. That's why you get slush.
>mfw "It's turning black/stinks"
Holding the butane lighter under the snow. Butane burns dirty and does not burn thoroughly.
All of my keks
Edit: I'm going expand the topic to include pseudoscience as well.
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Here's an entire website devoted to debunking this particular brand of batshit. http://contrailscience.com/how-to-debunk-chemtrails/ "Contrails don't persist." http://conspiracies.skepticproject.com/images/articles/chemtrails/1940chemtrailsomfg-full.jpg Tell these guys that.