New Study: Stone Flour From Greenland Can Capture Carbon Dioxide | News

When glaciers in Greenland grind on the mountains, a kind of “flour” is formed from the rock.

New research now shows that this stone flour can be used to capture carbon dioxide, he writes Watchman.

According to the paper, the Greenland ice sheet produces 1 billion tons of rock flour annually, which then turns into slush under the ice blocks. When natural chemical reactions cause flour to break down, it is said to bind carbon dioxide from the air to carbonate minerals.

Carbon dioxide is fixed in stone flour

This is usually a slow process, but scientists believe it can be speeded up, and with the help of so-called “enhanced weathering” remove billions of tons of carbon dioxide from the atmosphere – thus counteracting global warming.

It is estimated that each ton of stone flour contains about 250 kilograms of carbon dioxide.

If you want something to have a global impact, it should be simple. You can’t get too much high-end stuff with all sorts of high-tech components. The simpler the better, Professor Minnick Rossing of the University of Copenhagen tells the paper, and nothing is simpler than clay.

He adds that this rock flour has been forming in Greenland for thousands of years, and that there is so much that could be covered by the entire agricultural land on earth.

Sprinkle on fields in Denmark

In Denmark, they tested spreading stone flour in fields, including where Carlsberg grows barley, writes The Guardian, taking soil samples over the course of three years. The result has since been published in the scientific journal International Journal of Greenhouse Gas Control. One ton of stone flour from Greenland appears to have taken up approximately 14.6 kilograms of carbon dioxide over the course of three years.

At the same time, the researchers stated that more studies are needed to confirm their calculation methods.

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