By Dr. Rose Gidado In its most recent report, the Intergovernmental Panel on Climate Change IPCC, warned that climate change impacts on food and agriculture could be very severe unless there are rapid reductions in greenhouse-gas emissions. Currently, 70% of global agriculture is rain-fed, so is at the mercy of changing weather patterns and rainfall intensity. There is evidence that heat waves have doubled in some continental areas, that more rainfall is coming in heavy events, and that this is combined with a drying trend that is especially severe in sub-tropical...