Skip to main content

News about Scitation

In December 2016 Scitation will launch with a new design, enhanced navigation and a much improved user experience.

To ensure a smooth transition, from today, we are temporarily stopping new account registration and single article purchases. If you already have an account you can continue to use the site as normal.

For help or more information please visit our FAQs.

News Picks : Rerouting flights could reduce effect of contrails

By: Physics Today
Thu Jun 19 14:38:00 UTC 2014

BBC: Contrails left by jet planes can extend for 150 km and last for 24 hours. Because they both reflect sunlight away from Earth and trap IR energy, their net effect on climate isn't clear, but they appear to have a larger warming effect than cooling one. A previous study had suggested that the warming could be mitigated by having planes fly at lower altitudes, but that adjustment would increase their fuel use and carbon dioxide production. Now Emma Irvine of the University of Reading in the UK and her colleagues have found an alternative: rerouting flights to avoid regions of cold, moist air where contrails form most readily. To reduce the overall warming potential for shorter flights, the distance added can be up to 10 times the length of the contrail that would be produced. For longer flights, the distance can be increased up to three times the contrail length, but because those flights have more flexibility in their routes, such large distance changes wouldn't be necessary.

Commenting has been disabled for this content

Submit comment
Comment moderation successfully completed
e0bf90919b92373893d51373e6a49b70 weblog.blogpostzxybnytfddd