At Zaelke's helm, IGSD is working to strengthen the climate mitigation potential of the Montreal Protocol on Substances that Deplete the Ozone Layer by reducing hydrofluorocarbons (HFCs), a harmful short-lived climate pollutant primarily used in refrigerants, through research, building awareness and global negotiating. Zaelke and his colleagues contributed to the scientific foundation for these efforts by co-authoring several papers, including several in the Proceedings of the National Academy of Sciences (2007) and (2009), the Review of European Compliance & International Environmental Law, Atmospheric Chemistry and Physics, among others.
