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
Ozone depletion to increase dramatically as a result of thinning ozone, as well as harming plants and animals. These concerns led to the adoption of the Montreal Protocol in 1987, which bans the production of CFCs, halons and other ozone-depleting chemicals. The ban came into effect in 1989. Ozone levels stabilized by the mid-1990s and began to recover in the 2000s. Recovery is projected to continue over the next century, and the ozone hole is expected to reach pre-1980 levels by around 2075. The Montreal Protocol is considered the most successful international environmental agreement to date. Three forms (or allotropes) of oxygen