Climate change affects natural food productivity. With poor rains in different regions of the world, food productivity suffers. Harvests rise only with an abundance of rainfall. In poorer countries, technology cannot find a means to deal with the issue. These countries face widespread drought. A perfect example would be the Sahel:
In the Sudan there is a scarcity of water. The droughts that gripped Sudan have doubtless played a role in the conflict by increasing competition for water and land between farmers
Climate changes can also change storms in general. Tropical storms and hurricanes are likely to become more intense, produce stronger peak winds, and produce increased rainfall over some areas due to warming sea surface temperatures.