Global and Regional Assessments

Abstract

The main conclusions from recent global and regional assessments are reviewed, with an emphasis on China, India, Africa, and the United States. Most studies have provided primarily “best-guess” point estimates, often supplemented with a few sensitivity analyses, but without a comprehensive measure of uncertainties. Although some useful lessons have been learned, most existing estimates of food security risks leave much to be desired. We explore these estimates, some of their strengths and weaknesses, and some additional opportunities for measuring uncertainties.