mathinator writes "A study by researchers at the University of Waterloo indicates that Earth in its infancy probably had substantial quantities of hydrogen in its atmosphere, a surprising finding that may alter the way many scientists think about how life began on the planet. The new study indicates that up to 40 percent of the early atmosphere was hydrogen, implying a more favourable climate for the production of pre-biotic organic compounds like amino acids, and ultimately, life. The paper was authored by doctoral student Feng Tian, Prof. Owen Toon and Research Associate Alexander Pavlov of CU-Boulder's Laboratory for Atmospheric and Space Physics, and by Prof. Hans De Sterk of University of Waterloo's Applied Mathematics department. The paper was published in the April 7 issue of Science Express, the online edition of Science Magazine"
http://science.slashdot.org/article....19229&from=rss