Ireland lost about 20 percent of its population to starvation and emigration during the great famine of 1845-1849 because disease destroyed that nation’s major food source – potato. Today, an Irish-born professor at Penn State University believes that a similar situation in other regions, such as sub-Saharan Africa, could be a thousand times worse.
But there’s hope, he said, because modern food producers have a tool the 19th century Irish did not – smartphones and mobile apps, like PlantVillage.