Related topics: climate change

Earth's oxygen increased in gradual steps rather than big bursts

A carbon cycle anomaly discovered in carbonate rocks of the Neoproterozoic Hüttenberg Formation of north-eastern Namibia follows a pattern similar to that found right after the Great Oxygenation Event, hinting at new evidence ...

53 million-year-old high Arctic mammals wintered in darkness

(PhysOrg.com) -- Ancestors of tapirs and ancient cousins of rhinos living above the Arctic Circle 53 million years ago endured six months of darkness each year in a far milder climate than today that featured lush, swampy ...

New findings could sway thought on climate change

(PhysOrg.com) -- A newly published paper written by a University of Nebraska-Lincoln researcher and his team could influence the way scientists think about global warming and its effects.

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Isotopes of oxygen

There are three stable isotopes of oxygen that lead to oxygen (O) having a standard atomic mass of 15.9994(3) u. Also 10 unstable isotopes have been characterized.

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