ABSTRACT. Grasslands occupy nearly half the world?s ice-free land and provide forage for livestock and native herbivores on almost one-third of the world?s ice-free land. They are generally located in drier regions (arid and semiarid) with large diurnal temperature variations and high interannual rainfall variability. Rainfall is a key driver of pasture and livestock production, and managing drought is a common and challenging experience for pastoral managers. Here we examine the agroclimatic association of the worlds grasslands, looking specifically at grasslands in Australia, South America (Uruguay), and South Africa as examples of important grassland communities. Copyright © 2017. . Copyright © American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.