| http://www.w3.org/ns/prov#value | - August 16 2012 - Christian Aid is escalating its appeal for funds to tackle the food crisis in the Sahel region of West Africa amid reports that the situation is deteriorating fast.Photo: Christian Aid/Tom PilstonThe World Food Programme has warned that without new funding, food aid for nearly 250,000 Malian refugees in Burkina Faso, Mauritania, Niger and other neighbouring states will run out in
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