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DAR ES SALAAM, Tanzania, October 1 (IPS) - The dust was already swirling when Asherly William Hogo lifted himself from a makeshift bed before dawn. The 62-year-old pastoralist, lean from a lifetime of walking these plains, slipped into his sandals and stepped outside. Stars glittered over Dodoma, but the air was warmer than it used to be, Hogo swears. He whistled for his cows. Years ago, this hour meant an arduous trek to distant waterholes.