Australian Politics Forum - Global warming caused last mass extinction

Unforgiven

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Global warming caused last mass extinction
Aug 27^th, 2016 at 12:26pm

Is another mass extinction event around the corner? Will the oceans die from CO2 acidity, high temperature or from strangulation by plastics?

http://www.natureworldnews.com/articles/27493/20160826/artic-study-reveals-world...

Quote:

A study reveals that the world's last mass extinction happened because of global warming. This mass extinction, called the Great Dying Event, saw the demise of 96 percent of marine species and 70 percent of terrestrial life.

Jochen Knies, a researcher at CAGE who conducted the study in the Arctic, said the cause of this mass extinction is an "explosive event of volcanic eruptions" that happened in Siberia. He also said that amounts of volatiles such as carbon dioxides and methane were emitted by several eruptions that lasted for a million years. This emission made our planet "unbearably hot" during that time, Heritage Daily reports.

The Great Dying Event happened 252 million years ago, and it took nine million years after for life on Earth to recover from the catastrophe. The new study found clues in the Arctic and can now reveal why it took such a long time for recovery.

"What used to be the northwestern continental margin of the super continent Pangaea is now Canadian High Arctic. There we found evidence in geological records for a significant nutrient gap during this period. This means that global oceans were severely poor in nutrients such as nitrogen," Knies said via Science Daily.

During the Great Dying, the oceans' temperature (thermoclines) and nutrients (nutricline) suffered greatly because of high temperatures. Oceans are not a single body of water. There are actually layers and boundaries that are based on thermoclines and nutriclines. Both thermoclines and nutriclines deepened, ceasing the upwelling of nutrients from the bottom of the oceans. As a result, marine algae productivity decreased, crumbiling down the base of the food chain.

Only around six to seven million years after the extinction did the oceans started cooling off. The boundaries that prevented nutrients from going up to the surface were weakened. This paved way for the nutrients to return to the surface and sustain life again.

The study also proves how global warming can affect marine ecosystems in the long haul. The Great Dying Event or Permian-Triassic mass extinction has reset evolution. After this event, dinosaurs came but they also died out due to another mass extinction. The study notes that it's possible that humanity is facing another impending mass extinction due to human activity.

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lee

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Re: Global warming caused last mass extinction
Reply #1 - Aug 27^th, 2016 at 1:49pm

Only 252 million years ago. I wonder what caused that? Oh, Volcanic eruptions. Aren't they now supposed to cause cooling?

And then of course they found nutrient deficiencies and concluded that was because of temperature.

http://www.scotese.com/climate.htm

A lot of supposition. I wonder what the error bars are?

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« Last Edit: Aug 27^th, 2016 at 1:56pm by lee »

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lee Gold Member Offline Australian Politics Posts: 16399 Gender:	Re: Global warming caused last mass extinction Reply #2 - Aug 27^th, 2016 at 1:58pm Unforgiven wrote on Aug 27^th, 2016 at 12:26pm: The study notes that it's possible that humanity is facing another impending mass extinction due to human activity. Then of course, with natural variation, we may have a cooling event. And cold kills more than warm. Who knows?
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Valkie Gold Member Offline Australian Politics Posts: 16088 Central Coast Gender:	Re: Global warming caused last mass extinction Reply #3 - Aug 27^th, 2016 at 3:10pm I wasnt aware that mankind caused the last mass extinction? But Im sure the climate witch doctors sorry scientists know why that happened and have perfectly accurate and logical reasons for it? Perhaps
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Panther

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It's predicted: Warming caused last global warming
Reply #4 - Aug 27^th, 2016 at 5:32pm

Unforgiven wrote on Aug 27^th, 2016 at 12:26pm:

Is another mass extinction event around the corner? Will the oceans die from CO2 acidity, high temperature or from strangulation by plastics?

I really hope so, & the sooner the better ...... next century is the odds on favorite today ...... anyone else have a good tip?

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« Last Edit: Aug 27^th, 2016 at 5:43pm by Panther »

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lee Gold Member Offline Australian Politics Posts: 16399 Gender:	Re: Global warming caused last mass extinction Reply #5 - Aug 27^th, 2016 at 7:22pm Unforgiven wrote on Aug 27^th, 2016 at 12:26pm: Will the oceans die from CO2 acidity, high temperature or from strangulation by plastics? probably not.
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Valkie

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Re: Global warming caused last mass extinction
Reply #6 - Aug 28^th, 2016 at 1:53pm

Just another group of witch doctors, oops climate scientists who are looking for a way to get some funding.

I might just have to come up with some theory and publish a paper of outrageous claims and go on a speaking tour .
There will be plenty of gullible greenies who will support me.

It would have to be the easiest way to make money without actually doing anything........other than politics of course.

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I HAVE A DREAM
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A DREAM OF A WORLD THAT HAS NEVER KNOWN ISLAM
A DREAM OF A WORLD FREE FROM THE HORRORS OF ISLAM.

SUCH A WONDERFUL DREAM
O HOW I WISH IT WERE TRU

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Prime Minister for Canyons Gold Member Offline Australian Politics Posts: 26906 Canberra Gender:	Re: Global warming caused last mass extinction Reply #7 - Aug 29^th, 2016 at 12:12pm The P-T event wasn't the lass mass extinction.
Back to top	In a time of universal deceit — telling the truth is a revolutionary act. No evidence whatsoever it can be attributed to George Orwell or Eric Arthur Blair (in fact the same guy) IP Logged

Unforgiven

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Re: Global warming caused last mass extinction
Reply #8 - Aug 29^th, 2016 at 12:17pm

Valkie wrote on Aug 28^th, 2016 at 1:53pm:

Just another group of witch doctors, oops climate scientists who are looking for a way to get some funding.

I might just have to come up with some theory and publish a paper of outrageous claims and go on a speaking tour .
There will be plenty of gullible greenies who will support me.

It would have to be the easiest way to make money without actually doing anything........other than politics of course.

With Valkie's usual plethora of spelling errors, back of public toilet door writing style and pre-school grammar, authorities would give Valkie a grant to complete his elementary education or finance Valkie a nice room in a mental institution.

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Unforgiven Gold Member Offline I have sinned Posts: 8879 Gender:	Re: Global warming caused last mass extinction Reply #9 - Aug 29^th, 2016 at 1:28pm Prime Minister for Canyons wrote on Aug 29^th, 2016 at 12:12pm: The P-T event wasn't the lass mass extinction. The last mass extinction is currently in progress.
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rhino Gold Member Offline Australian Politics Posts: 17179 Gender:	Re: Global warming caused last mass extinction Reply #10 - Aug 29^th, 2016 at 2:10pm Unforgiven wrote on Aug 29^th, 2016 at 1:28pm: Prime Minister for Canyons wrote on Aug 29^th, 2016 at 12:12pm: The P-T event wasn't the lass mass extinction. The last mass extinction is currently in progress. well if its in progress how can it be the "last" one? Twit.
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Unforgiven

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Re: Global warming caused last mass extinction
Reply #11 - Aug 29^th, 2016 at 2:49pm

rhino wrote on Aug 29^th, 2016 at 2:10pm:

Unforgiven wrote on Aug 29^th, 2016 at 1:28pm:

Prime Minister for Canyons wrote on Aug 29^th, 2016 at 12:12pm:

The P-T event wasn't the lass mass extinction.

The last mass extinction is currently in progress.

well if its in progress how can it be the "last" one? Twit.

Because it hasn't engulfed Rhino yet.

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“I’ll let you be in my dreams if I can be in yours” Bob Dylan

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rhino Gold Member Offline Australian Politics Posts: 17179 Gender:	Re: Global warming caused last mass extinction Reply #12 - Aug 29^th, 2016 at 4:41pm Your brain experienced mass extinction years ago.
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Valkie

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Re: Global warming caused last mass extinction
Reply #13 - Aug 29^th, 2016 at 5:19pm

Unforgiven wrote on Aug 29^th, 2016 at 12:17pm:

Valkie wrote on Aug 28^th, 2016 at 1:53pm:

Just another group of witch doctors, oops climate scientists who are looking for a way to get some funding.

I might just have to come up with some theory and publish a paper of outrageous claims and go on a speaking tour .
There will be plenty of gullible greenies who will support me.

It would have to be the easiest way to make money without actually doing anything........other than politics of course.

With Valkie's usual plethora of spelling errors, back of public toilet door writing style and pre-school grammar, authorities would give Valkie a grant to complete his elementary education or finance Valkie a nice room in a mental institution.

Whats that Burger Engineer?, Or is it Deep fry Officer?
Your qualifications are???????

So sad, have you been outside yet?
Have you gathered up enough courage to get out into the real world, away from google and your computer?

Probably not, Trolls are far too cowardly to actually interface with real people.

Try again Troll, perhaps you might one day see the sun in real life.
Perhaps one day you will ..........dare I say it...........is it possible............Have social intercourse?
We both know that the other kind of intercourse is out of the question don't we??? Roll Eyes

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I HAVE A DREAM
A WONDERFUL, PEACEFUL, BEAUTIFUL DREAM.
A DREAM OF A WORLD THAT HAS NEVER KNOWN ISLAM
A DREAM OF A WORLD FREE FROM THE HORRORS OF ISLAM.

SUCH A WONDERFUL DREAM
O HOW I WISH IT WERE TRU

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Ajax

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CO2 has never controlled
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Re: Global warming caused last mass extinction
Reply #14 - Aug 29^th, 2016 at 6:09pm

Unforgiven wrote on Aug 27^th, 2016 at 12:26pm:

Is another mass extinction event around the corner? Will the oceans die from CO2 acidity, high temperature or from strangulation by plastics?

Extinctions in our history are common place, it happens on a regular basis be it millions of years.

Did the oceans acidify when we had 7000ppm of atmospheric CO2 cause I haven't seen an article that says they did, therefore at our current measly 400ppm you can be at rest that this phenomenon will not take place.

As for the plastic in the oceans, we have to do something about this pollution, its funny how not many governments talk about cleaning the plastic from the rivers and oceans.

Is it because the oligarchy cannot make a profit from collecting plastic....???

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1. There has never been a more serious assault on our standard of living than Anthropogenic Global Warming..Ajax
2. "One hour of freedom is worth more than 40 years of slavery & prison" Regas Feraeos

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Unforgiven

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Re: Global warming caused last mass extinction
Reply #15 - Aug 29^th, 2016 at 7:55pm

Ajax wrote on Aug 29^th, 2016 at 6:09pm:

As for the plastic in the oceans, we have to do something about this pollution, its funny how not many governments talk about cleaning the plastic from the rivers and oceans.

Its because humans have a finite life span which transfers the problem to a future generation. Just like government debt.

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lee

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Re: Global warming caused last mass extinction
Reply #16 - Aug 29^th, 2016 at 8:34pm

Unforgiven wrote on Aug 29^th, 2016 at 7:55pm:

Ajax wrote on Aug 29^th, 2016 at 6:09pm:

As for the plastic in the oceans, we have to do something about this pollution, its funny how not many governments talk about cleaning the plastic from the rivers and oceans.

Its because humans have a finite life span which transfers the problem to a future generation. Just like government debt.

'In a recent report, Ocean Conservancy claims that China, Indonesia, the Philippines, Thailand and Vietnam are spewing out as much as 60 percent of the plastic waste that enters the world’s seas.'

http://www.pri.org/stories/2016-01-13/5-countries-dump-more-plastic-oceans-rest-...

Wow. Not those decadent western nations? I'm shocked.

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Unforgiven

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Re: Global warming caused last mass extinction
Reply #17 - Aug 29^th, 2016 at 9:09pm

lee wrote on Aug 29^th, 2016 at 8:34pm:

Unforgiven wrote on Aug 29^th, 2016 at 7:55pm:

Ajax wrote on Aug 29^th, 2016 at 6:09pm:

As for the plastic in the oceans, we have to do something about this pollution, its funny how not many governments talk about cleaning the plastic from the rivers and oceans.

Its because humans have a finite life span which transfers the problem to a future generation. Just like government debt.

'In a recent report, Ocean Conservancy claims that China, Indonesia, the Philippines, Thailand and Vietnam are spewing out as much as 60 percent of the plastic waste that enters the world’s seas.'

http://www.pri.org/stories/2016-01-13/5-countries-dump-more-plastic-oceans-rest-...

Wow. Not those decadent western nations? I'm shocked.

Decadent Western Nations spewed out ten times as much for more than five decades. Its the stuff that is already broken into micro particles choking marine life.

you should see the rubbish in USA waterways.

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“I’ll let you be in my dreams if I can be in yours” Bob Dylan

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Mr Hammer

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Re: Global warming caused last mass extinction
Reply #18 - Aug 29^th, 2016 at 9:11pm

Unforgiven wrote on Aug 29^th, 2016 at 9:09pm:

lee wrote on Aug 29^th, 2016 at 8:34pm:

Unforgiven wrote on Aug 29^th, 2016 at 7:55pm:

Ajax wrote on Aug 29^th, 2016 at 6:09pm:

As for the plastic in the oceans, we have to do something about this pollution, its funny how not many governments talk about cleaning the plastic from the rivers and oceans.

Its because humans have a finite life span which transfers the problem to a future generation. Just like government debt.

'In a recent report, Ocean Conservancy claims that China, Indonesia, the Philippines, Thailand and Vietnam are spewing out as much as 60 percent of the plastic waste that enters the world’s seas.'

http://www.pri.org/stories/2016-01-13/5-countries-dump-more-plastic-oceans-rest-...

Wow. Not those decadent western nations? I'm shocked.

Decadent Western Nations spewed out ten times as much for more than five decades. Its the stuff that is already broken into micro particles choking marine life.

you should see the rubbish in USA waterways.

All you 3rd worlders eat you wildlife. That's where the extinctions are coming from.

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