Green

A plant scientist at Mars Inc., has appealed to the world's biggest life sciences companies to help him — by sharing what they already know about 100 crops that could provide better nutrition in Africa. But can the kings of agricultural intellectual property get on board with open source agricultural information for Africa?

Although scientists have known that a funguslike organism caused the potato blight that triggered the Great Famine in Ireland in the 1840s, they didn't know which strain was the culprit. But they do now, thanks to the genes in some 19th century potato samples.

Hipsters may just be discovering the joys of backyard chickens, but in African megacities, people have been bringing their animals into the slums with them for decades. That's creating a new ecosystem of animals and huge numbers of people living closely together like never before.