Crutzen, Paul J. -
(born 1933): Dutch meteorologist and a world expert on the chemical interactions of trace gases and trace components in the atmosphere. He is originator of a viable theory for the causes of rapid ozone loss in the Antarctic winter and was involved in international negotiations regarding the restriction of the use of CFC’s (Chloroflourocarbons) that destroy ozone. In 1980, he became director of the Department of Atmospheric Chemistry at the Max Planck Institute for Chemistry in Mainz. In 1995 Crutzen, M.J. Molina and F.S. Rowland together won the Nobel Prize with for their work on the depletion of the ozone layer.