Reply To: Is ANYONE getting clear nights any more? › Forums › General Discussion › Is ANYONE getting clear nights any more? › Reply To: Is ANYONE getting clear nights any more? 29 May 2024 at 12:46 pm #623032 Dr Paul LeylandParticipant The sky over the northern hemisphere was much clearer than usual in mid-September 2001 There is little doubt that contrails have a significant effect on the amount of cloud cover.
