CIESIN Reproduced, with permission, from: Tolba, M. K., O. A. El-Kholy, E. El-Hinnawi, M. W. Holdgate, D. F. McMichael, and R. E. Munn, eds. 1992. Ozone depletion. Chapter 2 in The world environment 1972-1992. New York: Chapman and Hall.

Main findings of the Report of the Technology and Economic Assessment Panel, (December, 1991).

Estimated phase-out progress:

Changes in CFC global market:

Technical feasibility of early phase-out:

Implications of a 1997 phase-out:

Transitional substances:

Technical and environmental uncertainty:

Developing countries concerns: