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This study investigates the projected climate change over West Africa Sahel from high resolution simulations.Simulations from regional climate model (RegCM3) at 40kin horizontal resolution and a 20 km mesh GCM are used to study projected climate change, over one of the most vulnerable regions on earth, West Africa Sahel.The long and devastating drought which affected Sahel in the 70s and 80s is the most recent example of dramatic effects of climate shift.