Besides being edible and nutritious, any super plant would need to tolerate floods and droughts and be able to survive in a wide variety of climates ranging from arid regions in north Africa to temperate regions in northern Europe. Ultimately, Chory’s goal is to breed plants that grow extra-deep roots with lots of suberin for long-term carbon storage. She estimates that if 5 percent of the world’s cropland, approximately the total area of Egypt, were devoted to such super plants, they could capture about 50 percent of current global carbon dioxide emissions.