Under certain atmospheric conditions, these wispy trails of condensed water vapor can spread out to form contrail cirrus ...

The "Contrail Cirrus Prediction Tool" CoCiP has been developed to simulate contrail cirrus resulting from a single flight as well as from a fleet of cruising aircraft, flight by flight, regionally or ...

Simply sign up to the Climate change myFT Digest -- delivered directly to your inbox. The writer is a researcher on carbon footprinting and global sustainability, professor at Lancaster University ...

Contrails and the resulting contrail cirrus only stay in the sky for a few hours. If they have a lower number of ice crystals, their warming effect is lowered immediately. The use of sustainable fuels ...

A common claim made by believers is that chemtrails can be distinguished from normal contrails “because they ... and dissipate into cirrus clouds”, said National Geographic.