Extinct but not forgotten Staff Member
You insist persistent contrails are seen in the stratosphere . . . I wish we could get a 747 pilot who has cruised into the lower stratosphere to comment . . . IMO seems you and Dr Minnis don't agree . . .Over that distance that 747 may lay 10,395 tons of persistent spreading contrail ice into a saturated (but de-saturating!) stratosphere. Where was all that stored?