http://www.bbc.co.uk/news/science-environment-30197085 . the film featured in this clip is from Diane Di on Youtube . it features a brave lady called Kristen meagan who explains very articulately her realisation to this practice . Our skies should not look like this . Condensation trails are just that , condensation which disperses instantaneous as soon as it hits oxygen . Isn’t it time we asked the question . Why are they doing this , who gave them permission ? , what are the effects of this ?, , when we are told that humans are destroying the planet then , what will this do ? cancer on the rise as well as well as other diseases , does this mass experiment have anything to do with it ?