He has been involved in the discussions of the Kyoto Treaty and its comparison to the more successful Montreal Protocol. More recently, he has been publishing on the institutions set up to control the regional and global spread of infectious diseases.
The text describes someone who has been involved in discussions about international agreements related to climate change (Kyoto Treaty) and their effectiveness compared to another successful agreement (Montreal Protocol).  He has also focused on the organizations that are responsible for managing the spread of infectious diseases, both at a regional and global level.