Rocket science. <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />

Yes, there are occasionally extenuating circumstances, but those are rare. What we're seeing today does not come close to matching the context of contrails.

You may also want to explore the apparent relationship between chemtrails and military aircraft.

http://www.chemtrailcentral.com/report.shtml

Photos:

http://russtanner.com/gallery/main.php?g2_itemId=1947

http://russtanner.com/gallery/main.php?g2_itemId=1962

http://russtanner.com/gallery/main.php?g2_itemId=1281&g2_page=3

http://russtanner.com/gallery/main.php?g2_itemId=1989

http://russtanner.com/gallery/main.php?g2_itemId=2010

http://russtanner.com/gallery/main.php?g2_itemId=2218

http://russtanner.com/gallery/main.php?g2_itemId=2283

http://russtanner.com/gallery/main.php?g2_itemId=1281&g2_page=9

http://russtanner.com/gallery/main.php?g2_itemId=2301