Caused by Climate Change, Greenland’s Glacial Rock Flour Could Help Fight It

Glacial rock flour is a crumbly by-product of climate change; it’s the silt left behind from receding glaciers in Greenland. Those glaciers are shrinking from warmer temperatures -- a result of human-caused climate change. Paradoxically, glacial rock flour is good for the environment. The nutrient-rich stuff can be added to farmland as fertilizer. It locks in carbon dioxide from the atmosphere, as well.