One more fossil in the ground

From this article which is paralleling the first article that I had read, speaks of the exact same fate of the poor prehistoric crustaceans. They went through a time period that lacked the sustaining oxygen levels need. This caused a fluctuation in the species fossils. When this was discover scientist found it extremely odd that there was such a drastic change in the fossils. Photo:http://static.guim.co.uk/sysimages/Books/Pix/pictures/2012/3/6/1331038452346/Trilobite-fossil-007.jpg

This article made the idea of global warming a very real thing. This information gives the whole topic of global warming some strong evidence. It is often said that history is bound to repeat itself. So is the earth head towards dangerous oxygen levels and warming seas? Is there extinction of species in our future? Even with this evidence it is still unknown the cause of this catastrophe, because humanoid life forms weren’t around yet to use the CO₂emitters. It seems as if this was completely natural for the earth to go through such a state. So are humans the pushing factor now or just taking an unfair blame?

Article in this blog found at: http://www.sciencedaily.com/releases/2013/02/130219140508