A Halt to desert advance
What causes deserts to advance? How helpless is man faced with the ravages of desertification? These are only two of the disquieting questions raised in this issue. Today we still know relatively little about deserts, how they are created, and the roles that man and climate respectively play in their spread. To have a global evaluation of the problem and to initiate a programme of action, the United Nations has decided to hold the first Conference on Desertification this year in Nairobi (Kenya), from 29 August to 9 September. Preparatory to the Conference, a world map of deserts and desertification is being drawn up in collaboration with UNESCO and other international organizations.
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