The original problem posed by contrails were for military reasons. Now the funded sciences are trying to find a solution because of the climate changing possibilities of aviaticus clouds, warming, cooling, hydrology cycle disruption or even if there is a problem, is it significant? Aesthetics are hardly mentioned in the funded studies that I've read. Nevertheless if they successfully find a solution to this very complex residual effect of air transport, the aesthetics will follow, the naturally beautiful sky literally will follow.
Researchers are pursuing the solutions for contrail elimination, but each contrail solution like pharmaceuticals have challenging side effects. Will more efficient engines to reduce the soot nuclei produce greater heat or possibly more water vapor or CO2? Flying around ice saturated air could cost more fuel, lengthen flight time, place more stress on crews, passengers and air controllers. Changing traditional flight altitude to the tropopause or lower stratosphere where the air is dryer and contrails are unlikely to form. But then the concern is for ozone depletion from the chemical emissions. Ideally short of reducing air travel, since the ice saturation sheets are thin, if they can be detected these sheets with precision, altitude adjustments of just a few thousand feet during each flight to avoid those areas could reduce aviaticus clouds to a great extent. Having at the same time more efficient engines and fuels that produce less soot nuclei would still be important. First clouds can still be formed by the sub-visual aerotrails of soot particles well after the aircraft has passed as the particles contact more humid air. Still little is known of the effects of millions of aerotrails even if no contrails are formed. Perhaps there are no negative effects, perhaps the accumulation of these particles are having an effect on climate or health we do not yet understand or that the public is aware of.
For more on this subject please read Ulrich Schumann's 2005 published paper:
Contrail Reduction Strategies Using Different Weather Resources By Neil Y. Chen et al
Extended Aviaticus Cloud Forecast: By Wednesday 4.22.2015 the cloud cover should begin to break and a dryer air mass should move in. Earlier Thursday the clouds should be clearing out and during this period contrails should form but decrease to short-lived whiffs by late afternoon Thursday or Friday morning.
http://theorioninitiative2.blogspot.com/2015/04/go-seven-miles-north-then-turn-straight.html
http://theorioninitiative2.blogspot.com/2015/04/go-seven-miles-north-then-turn-straight.html
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