Economywide Impacts of Climate Change on Agriculture in Sub-Saharan Africa

by Alvaro Calzadilla, Tingju Zhu, Katrin Rehdanz, Richard S.J. Tol, and Claudia Ringler

- Two possible adaptation options to climate change for Sub-Saharan Africa are analyzed under the SRES B2 scenario. The first scenario doubles the irrigated area in Sub-Saharan Africa by 2050, compared to the baseline, but keeps total crop area constant. The second scenario increases both rainfed and irrigated crop yields by 25 percent for all Sub-Saharan African countries. The two adaptation scenarios are analyzed with IMPACT, a partial equilibrium agricultural sector model combined with a water simulation module, and with GTAP-W, a general equilibrium model including water resources.

Calzadilla, A., T. Zhu, K. Rehdanz, R.S.J. Tol and C. Ringler (2009). "Economywide Impacts of Climate Change on Agriculture in Sub-Saharan Africa." Discussion Paper No. 873, July 2009.