Robert K. Dixon of The World Bank Group, Dixon was Team Leader for Climate Change and Chemicals (2008 to 2015), overseeing a multibillion-dollar portfolio of energy, environment, public health, infrastructure, and transportation projects in developing and transition countries. Dixon has been a delegate to intergovernmental negotiating committees and subsidiary bodies of the United Nations Framework Convention on Climate Change (1992 to present), Montreal Protocol on Substances that Deplete the Ozone Layer (1989 to present), Minamata Convention on Mercury (2009 to 2015), the Asia-Pacific Partnership on Clean Development and Climate (2006 to 2011), the Stockholm Convention on Persistent Organic Pollutants (2004 to 2015), and
Montreal Protocol Antarctic Survey scientists Joe Farman, Brian Gardiner and Jonathan Shanklin published results of abnormally low ozone concentrations above Halley Bay near the South Pole. They speculated that this was connected to increased levels of CFCs in the atmosphere. It took several other attempts to establish the Antarctic losses as real and significant, especially after NASA had retrieved matching data from its satellite recordings. The impact of these studies, the metaphor 'ozone hole', and the colourful visual representation in a time lapse animation proved shocking enough for negotiators in Montreal, Canada to take the issue seriously. Also in 1985, 20 nations,