Basalt rock dust being scattered on a field in the UK Image courtesy of UNDO
Spreading crushed rock on farms is gaining traction as a method of removing carbon dioxide from the atmosphere. Now, two independent tests of the approach on farms in the US Midwest and in the UK have found it can also substantially increase crop yields.
“It’s very encouraging,” says David Beerling at the University of Sheffield in the UK, whose team tested the approach on an experimental farm in Illinois.
Silicate rocks…
