Conference attendees from about 30 countries met to present research results and discuss current issues in the fields of topospheric and stratospheric aerosols and nucleation phenomena. Specifically addressed are aerosol and nucleation mechanisms affecting ice formation, cloud droplet formation and growth, aerosol-cloud interactions, and aerosol related global warming and ozone depletion mechanisms as well as acid rain production and pollution of the earth's atmosphere. The nucleation symposium part of this conference addresses all theoretical and experimental aspects of single and multi-component nucleation, ion induced nucleation and heterogeneous nucleation involving foreign particulates. The conference attracts leading scientists in the aerosol and nucleation communities and the Proceedings provides a technical summary of the current status of research.