In this issue : 1. GWP-ODP Calculator SmartPhone Application 2. Presentations of the International Symposium, Paris, France,19 - 20 September 2017- on the Occasion of the Montreal Protocol 30th Anniversary Celebration! 3. UNGA High-Level Event on the Ratification of the Kigali Amendment 4. Thirty Years after Montreal Pact, Solving the Ozone Problem Remains Elusive 5. Cutting emissions of HFCs along with other short-lived climate pollutants could avoid 1.2°C of global warming by 2100, according to new research etc.