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Fact Sheet 2011-3072

Famine Early Warning Systems Network—Informing Climate Change Adaptation Series

A Climate Trend Analysis of Sudan

By Chris Funk1, Gary Eilerts 2, Jim Verdin 1, Jim Rowland 1, and Michael Marshall 1


Thumbnail of and link to report PDF (4.5 MB)Conclusions

  • Summer rains in western and southern Sudan have declined by 10–20 percent since the mid-1970s.
  • Observed warming of more than 1 degree Celsius is equivalent to another 10–20 percent reduction in rainfall for crops.
  • The warming and drying have impacted southern Darfur and areas around Juba.
  • Rainfall declines west of Juba threaten southern Sudan’s future food production prospects.
  • In many cases, areas with changing climate are coincident with zones of substantial conflict, suggesting some degree of association; however, the contribution of climate change to these conflicts is not currently understood.
  • Rapid population growth and the expansion of farming and pastoralism under a more variable climate regime could dramatically increase the number of at-risk people in Sudan over the next 20 years.

First posted July 11, 2011

For additional information contact:
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
Sioux Falls, SD 57198-0001
Phone: 605-594-6151
Fax: 605-594-6589

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Suggested citation:

Funk, C., Eilerts, G., Verdin, J., Rowland, J., Marshall, M., 2011, A climate trend analysis of Sudan, U.S. Geological Survey Fact Sheet 2011-3072, 6 p.

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