The 1995 Nobel Prize in Chemistry was awarded to three researches who explained how chlorofluorocarbons contribute to the destruction of ozone in the stratosphere.  The winners were:

Dr. F. Sherwood Rowland (University of California, Irvine)

Dr. Mario Molina (Massachusetts Institute of Technology)

Dr. Paul Crutzen (Max Planck Institute for Chemistry, Mainz, Germany)

For a short description of their work, go to this link.