United Nations Environment Programme
   Ozone Secretariat

• Reducing abrupt climate change risk using the Montreal Protocol and other regulatory actions to complement cuts in CO2 emissions by Mario Molina, Durwood Zaelke, K. Madhava Sarma, Stephen O. Andersen, Veerabhadran Ramanathan and Donald Kaniaru
• Nitrous Oxide (N2O): The Dominant Ozone-Depleting Substance Emitted in the 21st Century by A. R. Ravishankara,* John S. Daniel, Robert W. Portmann
  • The Article in Science Magazine
  • Supporting Online Material
• New Simulation Shows Consequences of a World Without Earth's Natural Sunscreen
• Impact du Protocole de Montréal sur la protection de la couche d’Ozone et sur l’élimination du Bromure de Méthyle (French only)
• Summary of The United States Environmental Protection Agency press release recognizing Dr. Andersen, co-chair of the Technology and Economic Assessment Panel of the Montreal Protocol and Drs. Velders, Daniel, Fahey and McFarland, members of the Scientific Assessment Panel of the Montreal Protocol.These distinguished members of the Assessment Panels of the Montreal Protocol were recognized for their landmark paper: “The Importance of the Montreal Protocol in Protecting Climate,” published in the Proceedings of the National Academy of Sciences, 104 (12):4814-4819 (2007). This paper also earned the 2007 United Nations Environment Programme Award for the “Best New Paper on a Montreal Protocol Related Topic: Science Category.” (English Only)