The Permo-Triassic Extinction: A Question of Timing

Guest post by Mark Hladik Introduction In a 31 August 2011 article A blast from the gas in the past, Anthony Watts and company at Watts Up With That discussed a new paper by Montenegro et al titled, “Climate Simulations of the Permian-Triassic Boundary:  Ocean Acidification and the Extinction Event”.  This paper places the blame for…

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Mercury fingered in Permian-Triassic extinction

Hmmm. This sounds a bit like a sales pitch against “dirty coal” in support of the recent EPA Mercury ruling instead of regular geological research. I question this research claim because they only have evidence that there were spikes of Mercury during those events, not that they caused or accelerated the extinctions. The PR states:…

Little oxygen hogs

Algae and bacteria hogged oxygen after ancient mass extinction, slowing recovery of marine life, say Stanford researchers After the biggest mass extinction in Earth’s history – 250 million years ago – algae and bacteria in the ocean rebounded so fast that they consumed virtually all the oxygen in the sea, slowing the recovery of the…