Troposphere

  1. Global atmospheric chlorine declined over 2004–2024
    21-year satellite inventory shows global atmospheric chlorine declining since 2004, though emerging short-lived substances offset some gains from CFC phase-out regulations.
  2. UKESM misses key marine aerosol formation pathways
    Evaluation of UKESM1.1 against ATom aircraft data reveals missing marine aerosol formation pathways involving iodine, amines, and organic vapours in remote regions.