African farmers look to the past and the future to address climate change 

HARARE — From ancient fertilizer methods in Zimbabwe to new greenhouse technology in Somalia, farmers across the heavily agriculture-reliant African continent are looking to the past and future to respond to climate change. Africa, with the world's youngest population, faces the worst effects of a warming planet while contributing the least to the problem. Farmers are scrambling to make sure the booming population is fed. With more than 60% of the world’s uncultivated land, Africa should be able to feed itself, some experts say.