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College of Arts and Sciences carbon sequestration

Six feet under: Deep soil can hold much of the Earth’s carbon

Infographic about soil carbon.One‑fourth of the carbon held by soil is bound to minerals as far as six feet below the surface, a Washington State University researcher has found. The discovery opens a new possibility for dealing with the element as it continues to warm the Earth’s atmosphere.

One hitch: Most of that carbon is concentrated deep beneath the world’s wet forests, and they won’t sequester as much as global temperatures continue to rise. » More …