- When contrails dissipate, they leave an icy haze behind
 - Researchers think this is conducting unintentional geoengineering
 - Icy haze is gradually whitening blue skies
 - Small particles from air traffic are scattering sun light in atmosphere
 
Read more: http://www.dailymail.co.uk/sciencetech/article-3364867/Aircraft-contrails-unintentionally-changing-atmosphere-warming-planet-researchers-warn.html#ixzz3ufS9mVps
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