PC Pals Forum

General Discussion => Science & Nature => Topic started by: sam on August 19, 2009, 15:47

Title: The Origin of Oxygen in Earth's Atmosphere
Post by: sam on August 19, 2009, 15:47

http://www.scientificamerican.com/article.cfm?id=origin-of-oxygen-in-atmosphere

Title: Re: The Origin of Oxygen in Earth's Atmosphere
Post by: Clive on August 20, 2009, 11:36

I will never kick one of those little cyanobacteria in the head again!   :D