Underneath Greenland’s ice cap is “rock flour,” ground into nanoparticles of dust by the crushing weight of the ice. Scientists have found that this glacial flour contains a particular ...

It has direct implications for food security.” Spreading Greenland rock flour on corn fields in Ghana produced a 30 to 50 per cent increase in crop yields. Similar yield gains occurred when it ...

Loading external pages may require significantly more data usage. Spreading Greenland rock flour on corn fields in Ghana produced a 30 to 50 per cent increase in crop yields. Similar yield gains ...