How the humble hornwort could supercharge agriculture

You are here because of a single, all-important enzyme. But don’t look inward to find ribulose-­1,5-­bisphosphate carboxylase/oxygenase, known more mercifully among scientists as rubisco. Instead, look to the food you eat and the trees that manufacture oxygen, as this is the protein that makes photosynthesis possible. Without it, life on...