Soils that formed on Earth's surface thousands of years ago and that are
now deeply buried features of vanished landscapes have been found to be
rich in carbon, adding a new dimension to our planet's carbon cycle. The
finding, reported in the journal *Nature Geoscience*, is significant as it
suggests that deep soils can contain long-buried stocks of organic carbon
which could, through erosion, agriculture, deforestation, mining and other
human activities, contribute to global climate change.
[permaculture] Buried fossil soils found to be awash in carbon | e! Science News,
Lawrence London, 05/26/2014