Chris Jordan's fantastic website
Link to interview of Jordan by themorningnews.org
The page on the artist's website which features "Jet Trails" as well as many other works. Clck on each image to zoom from actual size to a size where the individual objects can be identified.
TED Talk by the artist "Turning Powerful Stats Into Art"
"Contemporary photographers are travelling the world to bring back images of the proliferating structures of a planet that is changing at an extraordinary rate."
Geographic Society's short description of contrails and their effects on the environment