A Mauritanian looks at a sky filled by a desert locust swarm near Kaedi, southern Mauritania, in this recent picture released Thursday Aug. 5, 2004 by the Food and Agriculture Organization of the United Nations.

• 在联合国粮农组织8月5日（周四）提供的一张照片中，在毛里塔尼亚南部的克地附近，一名男子面对漫天遍野的沙漠蝗虫一筹莫展。