A series of case studies by the World Conservation Union (Ïã¸ÛÁùºÏ²Ê¿ª½±½á¹ûÏÖ³¡Ö±²¥) has revealed the economic contribution of drylands needs to be revalued
New report on the economics of nomadism reveals importance of this traditional lifestyle to the income of developing countries and international trade