Late and erratic rains have pushed up food prices in a country where climate change, extreme poverty and high population growth mean many children go hungry in any year. (..) For some of the men in Galadima, the tension in Nigeria has already had an impact. Fortunately for them, they are now receiving food aid from WFP and in return they work on "dune fixing," digging trenches and putting up fences to prevent soil erosion of cultivated areas.