Chemtrails
- It's a conspiracy theory without any credible backing.
- http://en.wikipedia.org/wiki/Chemtrail_conspiracy_theory
- http://rationalwiki.org/wiki/Chemtrails
- http://www.skepdic.com/chemtrails.html
- http://www.telegraph.co.uk/travel/travelnews/travel-truths/10329986/Chemtrails-and-other-aviation-conspiracy-theories.html
- http://thevane.gawker.com/why-i-write-about-and-debunk-the-chemtrail-conspiracy-1581896346