Weeds can be nutritious and tasty, if we know which ones to pick.

A “plant whose virtues have not yet been discovered” was how the 19th-century American poet, Ralph Waldo Emerson, described a weed – and he may have been on to something. Finding new plant-based foods is becoming increasingly urgent with the world’s population forecast to grow by two billion in the next 30 years. While farming animals for meat generates 14.5% of total global greenhouse emissions, weeds capture carbon from the atmosphere and can therefore help to control climate change.-- More...