Skip to content

MASS EXTINCTION: All life on Earth went extinct 252 million years ago

By Catholic Online (NEWS CONSORTIUM)
4/4/2014 (3 years ago)
Catholic Online (www.catholic.org)

Methane-spewing microbe was culprit in mass extinction, scientists say

Nearly all life on Earth became extinct 252 million years ago. According to Massachusetts Institute of Technology, or MIT scientists, the culprit was not an asteroid striking the planet, but a methane-spewing microbe.

The Permian-Triassic extinction has been defined as a natural event that heated up the Earth's biological systems.

The Permian-Triassic extinction has been defined as a natural event that heated up the Earth's biological systems.

Highlights

By Catholic Online (NEWS CONSORTIUM)
Catholic Online (www.catholic.org)
4/4/2014 (3 years ago)

Published in Green

Keywords: Methane, extinction, Permian-Triassic


LOS ANGELES, CA (Catholic Online) - Daniel Rothman, MIT Professor of Geophysics, says that massive volcanic eruptions and chemical changes coincided to dramatically change the climate and the chemistry of the ocean.

"When one examines old rocks that were deposited at the time, the results of those geochemical analyses indicate that there was a large influx of carbon into the Earth's system - that is, the oceans and the atmosphere - and that carbon likely entered system as CO2," Rothman says.

It is better to light one tiny candle than to curse the darkness --

The massive change happened in the "geological blink of an eye;" about 60,000 years, which killed 96 percent of life in the ocean and 70 percent of life on land. This era was known as the Permian-Triassic extinction event. In more concrete terms, the Great Dying.

The carbon dioxide that erupted from volcanos was a potent greenhouse gas. The process warmed the air and turned oceans acidic. Rothman now says that the volcanic activity in what is today Siberia cannot solely account for the global geo-chemical change.

"It's a gross correlation, and the question is how it might be related," he says. "It's not the only question, but it is the one of the questions we address in our paper." 

An analysis of the genomic record that revealed a marine microbe that produces methane and could be an important player in the massive die-off.

"Methane-producing microbes had already been present, but this was a particular microbe that could do it a little bit more efficiently than the others," he explains. "And so we've hypothesized that it might have been responsible for the outburst of carbon into the system - originally methane - and the methane would have been oxidized to CO2."

Rothman and colleagues report that the methane microbes experienced an explosive growth which was fueled by the mineral nickel, which they found in sedimentary rocks from those Siberian eruptions.

The nickel concentrations rose considerably just before extinction, which would have made a very favorable environment for the methane-producing microbes.

The Permian-Triassic extinction has been defined as a natural event that heated up the Earth's biological systems.

"It's not that unusual in the history of life for such things to occur," Rothman says. "The point is that life and the environment interact. They always have and they always will."

---


'Help give every student and teacher Free resources for a world-class moral Catholic education'


Copyright 2017 - Distributed by THE CALIFORNIA NETWORK

Pope Francis Prayer Intentions for MAY 2017
Christians in Africa.
That Christians in Africa, in imitation of the Merciful Jesus, may give prophetic witness to reconciliation, justice, and peace.


Comments


More Green

Large 14 Foot Crack in Headworks? Cracking Radial Gate Steel tendons? Threat to Spillway yet no Repairs in 2017? Watch

Image of The Oroville Dam spillway will be repaired, but do deeper problems exist?

A threatening 14 foot crack growing in a massive 5 foot thick concrete pier at Radial Trunnion Gate 8 in Oroville's Spillway Headworks? DWR ... continue reading


God's Paradise completely destroyed at the hands of human pollution Watch

Image of Miles from civilization, Henderson Island is still covered by plastic pollution.

A once beautiful uninhabited island, a sanctuary to multiple endangered species, is now revealed to be the most polluted place on Earth ... continue reading


Oroville Dam History Images, Reveals Clues to Dam Leakage? What Should be Done? Watch

Image of Water breaches the spillway at Oroville Dam on Feb. 12.

Mysteries to the clues of Oroville Dam's leakage revealed in historical dam images?  Does DWR/DSOD already know that there is a leak ... continue reading


Forget Global Warming, are we headed for a 'little ice age?' Watch

Image of Is our planet about to get a lot cooler?

With all the attention paid to global warming these days, what would happen if our climate disaster came from the other direction --in the ... continue reading


Our common home really needs your help! Watch

Image of Pope Francis sees all of God's creation as interrelated and worthy of protection.

"A very solid scientific consensus indicates that we are presently witnessing a disturbing warming of the climatic system," warns Pope ... continue reading


Never Miss any Updates!

Stay up to date with the latest news, information, and special offers.

Catholic Online Logo

Copyright 2017 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2017 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.