Since the 1990s, glacier area has decreased by about 75%. The continent of Africa warmed by 0.9° F (0.5°C) during the past century, and the five warmest years in Africa have all occurred since 1988.
Reference: Kaser, G., 1999. A review of modern fluctuations of tropical glaciers. Global and Planetary Change, 22: 93-103.
IPCC, 2001b. Climate Change 2001: Impacts, Adaptation, and Vulnerability. Intergovernmental Panel on Climate Change (IPCC) Working Group II, MacCarthy, J.J. et al., eds. Cambridge University Press, Cambridge, UK.