New Scientist recommends sampling the Museum of Edible Earth in London

Geoscientists have long relied on different forms of lead to understand Earth's geological history and how it was created over billions of years. However, there is a mystery that has been puzzling scientists for decades: Earth is missing a massive amount of lead that ought to be in the planet's crust, and no one knows where it has gone to.

In a three-year project, researchers at NIBIO have tested how biochar affects potato yields and soil quality under Norwegian conditions. The results show that biochar has little effect on yield, but that it may offer other benefits.