News tagged with oxygen levels

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Greenhouse gases from farmland underestimated

(Phys.org)—Changes in agricultural practices could reduce soil emissions of the greenhouse gas nitrous oxide and the atmospheric pollutant nitric oxide, according to a new study by scientists at the University of California, ...

Apr 02, 2013
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Mineral diversity clue to early Earth chemistry

Mineral evolution is a new way to look at our planet's history. It's the study of the increasing diversity and characteristics of Earth's near-surface minerals, from the dozen that arrived on interstellar dust particles when ...

Feb 28, 2013
5 / 5 (1) 0 | with audio podcast