DIFFA REGION 22 March 2012 (IRIN) - Having spent a fruitless day in search of pasture in the searing heat, about 20 worried and exhausted Fulani pastoralists from Niger near the southeastern edge of the Sahara lie under the stars and mull their future. The next rains and green pastures are still another four months away - or maybe not, mused one of them - “only Allah knows”.