ScienceDaily: A research team led by biogeochemists at the University of California, Riverside has filled in a billion-year gap in our understanding of conditions in the early ocean during a critical time in the history of life on Earth. It is now well accepted that appreciable oxygen first accumulated in the atmosphere about 2.4 to 2.3 billion years ago. It is equally well accepted that the build-up of oxygen in the ocean may have lagged the atmospheric increase by well over a billion years, but the details...
URL: http://www.sciencedaily.com/releases/2013/03/130318151525.htm?utm_source=dlvr.it&utm_medium=twitter&utm_campaign=Feed%3A+sciencedaily%2Fearth_climate+%28ScienceDaily%3A+Earth+%26+Climate+News%29
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