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Prof. David Manning on Rock Dust: Quarries, Breweries and Beyond

Soils are a critically important natural resource, providing us with 90% of our food, lumber for construction, and natural fibers like cotton. Through plant and microbial activity, soils also play an essential role in shaping Earth’s atmosphere. The amount of carbon cycled through the plant-soil interface every seven years is equivalent to all the carbon in the atmosphere. Soils do all of this while only covering about a quarter of Earth’s surface. Sustainable soil management is therefore essential to mitigating climate change while preserving soil as a resource for future generations. It’s a complicated task. Soil science lies at the inters...