Blue and Green: A team of scientists have proposed extending flight routes to bypass contrail areas and as a result reduce the significant impact contrails have on the ozone layer.
Extending the flight time, however, does raise further issues around increasing the amount of CO2 being emitted during the flight.
The report argues contrails have a greater effect on climate change than direct plane engine emissions as they produce artificial clouds. The clouds, once formed, can trap heat in, which would otherwise...