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Iron minerals' hidden chemistry explains how soils trap carbon
December 15, 2025
EVANSTON, Illinois, Dec. 15 -- Northwestern University posted the following news release:

* * *

Iron minerals' hidden chemistry explains how soils trap carbon

* Soil is one of Earth's largest carbon sinks, second to the ocean

* New study discovers a key iron mineral in soil has a nanoscale mosaic of positive and negative charges

* Varied charges, hydrogen bonding and strong chemical bonds enable mineral to trap carbon < . . .

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