STANFORD, Calif. (KGO) -- For the last decade or so, researchers have been cooking up plans for a material called biochar - a kind of superheated organic charcoal that can be used to help crops grow, ...

Biochar, a carbon rich material made by heating biomass under low oxygen conditions, has long been known for its ability to store carbon in soils and improve environmental quality. Now, a new ...

For all its plant and animal life aboveground, the Amazon rainforest’s soils are surprisingly poor in nutrients necessary for growing food. Thousands of years ago, the region’s Indigenous peoples ...