A bowl of cereal looks simple, but it’s the end of a long chain of choices that changed human life more than almost any ...

The growing need for food has led to a rising demand for fertilizers—especially nitrogen. But making nitrogen fertilizers uses large amounts of fossil fuels, including natural gas, coal, and oil.

Human health in the modern world is a conundrum. On the surface, we should be healthier than ever. We have more access to food and clean water than at any time in history. Doctors are more capable ...

An analysis of ancient and modern DNA suggests the extent of convergent evolution in different peoples around the world is ...