Those who ignore history repeat its mistakes... or something like that.
Posted on 09/23/2017 1:37:17 PM PDT by Hadean
A mass extinction which wipes out humanity will be underway by the year 2100, scientists have claimed.
By the end of the century, it’s feared that so much carbon will have been added to the oceans that the planet will have passed a “threshold of catatastrophe” which leads to the destruction of our species.
In the past 540 million years the planet has endured five such wipeouts – including the extinction of the dinosaurs.
The worst took place 252 million years ago and is known as the Great Dying.
This disaster killed off more than 95 per cent of marine life when the seas suddenly became more acidic.
Now geophysicist Professor Daniel Rothman says we are seeing a disturbing parallel today – this time because of man-made global warming.
He came up with a simple mathematic formula which predict that the oceans will soon hold so much carbon that a mass extinction is inevitable.
It showed the critical extra amount required is about 310 gigatons – which is the best case scenario projected by the Intergovernmental Panel on Climate Change (IPCC). And it's well below the worst of more than 500 gigatons - which would far exceed the line.
In all scenarios, the study found by the end of the century the carbon cycle will either be close to - or well beyond - the threshold for catastrophe.
Although mass extinction won't soon follow at the turn of the century the world may have tipped into "unknown territory".
(Excerpt) Read more at foxnews.com ...
not going to happen....its today the world ends so I am told....
Meh. We had a good run.
I think I saw that guy at 7-11! /Joe Biden
“Mass global extinction that wipes out human civilization...”
... Common Sense will be the first thing to go.
Those who ignore history repeat its mistakes... or something like that.
We really need to educate ourselves on this specious propaganda.
Here’s a good beginning.
https://phys.org/news/2017-07-earth-major-mass-extinction-events.html
Most scientists agree that a “mass extinction” event is underway with the Earth’s wildlife disappearing at an alarming rate, mainly due to human activity.
But this is not the first time: over the last half-billion years there have been five major wipeouts in which well over half of living creatures disappeared within a geological blink of the eye. All told, more than 90 percent of organisms that have ever strode, swam, soared or slithered on Earth are now gone.
Here are the biggest die-offs, each showing up in the fossil record at the boundary between two geological periods:
Ordovician extinction
When: about 445 million years ago
Species lost: 60-70 percent
Likely cause: Short but intense ice age
Most life at this time was in the oceans. It is thought that the rapid, planet-wide formation of glaciers froze much of the world’s water, causing sea levels to fall sharply. Marine organisms such as sponges and algae, along with primitive snails, clams, cephalopods and jawless fish called ostracoderms, all suffered as a consequence.
Devonian extinction
When: about 375-360 million years ago
Species lost: up to 75 percent
Likely cause: oxygen depletion in the ocean
Again, ocean organisms were hardest hit. Fluctuations in sea level, climate change, and asteroid strikes are all suspects. One theory holds that the massive expansion of plant life on land released compounds that caused oxygen depletion in shallow waters. Armoured, bottom-dwelling marine creatures called trilobites were among the many victims, though some species survived.
Permian extinction
When: about 252 million years ago
Species lost: 95 percent
Possible causes: asteroid impact, volcanic activity
The mother of all extinctions, the “Great Dying” devastated ocean and land life alike, and is the only event to have nearly wiped out insects as well. Some scientists say the die-off occurred over millions of years, while others argue it was highly concentrated in a 200,000-year period.
In the sea, trilobites that had survived the last two wipeouts finally succumbed, along with some sharks and bony fishes. On land, massive reptiles known as moschops met their demise. Asteroid impacts, methane release and sea level fluctuations have all been blamed.
Triassic extinction
When: about 200 million years ago
Species lost: 70-80 percent
Likely causes: multiple, still debated
The mysterious Triassic die-out eliminated a vast menagerie of large land animals, including most archosaurs, a diverse group that gave rise to dinosaurs, and whose living relatives today are birds and crocodiles. Most big amphibians were also eliminated.
One theory points to massive lava eruptions during the breakup of the super-continent Pangea, which might have released huge amounts of carbon dioxide, causing runaway global warming. Other scientists suspect asteroid strikes are to blame, but matching craters have yet to be found.
Cretaceous extinction
When: about 66 million years ago
Species lost: 75 percent
Likely cause: asteroid strike
An space rock impact is Suspect No. 1 for the extinction event that wiped out the world’s non-avian dinosaurs, from T-Rex to the three-horned Triceratops. A huge crater off Mexico’s Yucatan Peninsula supports the asteroid hypothesis.
Read more at: https://phys.org/news/2017-07-earth-major-mass-extinction-events.html#jCp
Who told you that? “Fry yhe Sclencr Guy!
I predict that by the year 2100, Daniel Rothman and the ICC will both have had a Great Dying of their own. RIP SOB. Now pay me, because I know I’m right.
>>I’m sure he will apologize when 2100 comes and goes and nothing happens.<<
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I always try to lock them into a date, when they will give up their ridiculous “True Believer” delusion.
In 2050 (knock on wood), I will be able to razz several globalist libtards.
Isn’t it cute?
After the East Anglia emails came out, no one said “global warming” anymore.
Got changed to “climate change”.
Now they’re back!
We’re all gonna die, just 100 years from now. From...wait for it...global warming!
Shhhh...do ya think they’ll remember when we couldn’t say that?!
In a similar thread I commented: So, what caused the previous 5 extinction events?
Granted, dinosaur farts might account for one, but that still leaves 4 others.
Hmmmn. Yeah, right.
But the “global warming” - IF it continues at all through to the 2100 - is NOW responsible for longer growing seasons, more aavailable acreage as more areas have more heat, MORE growth of EVERY plant on the planet by 12% to 27% due SOLELY to man’s recent release of additional to the atmosphere from its near-intolerable levels of 280 ppm 250 years ago!
We ARE NOW feeding some 6.5 billion people with the benefits of fossil fuels: Tractors, trucks, harvesters, combines, plows, seeders, threshers, mowers, sterile packing and preservative methods, chemical fertilizers and biocides and pesticides and food transportation and clean water, processed sewage and water treatment, irrigation pumps and pipes and sprinklers ....
JUST the food treatment and shipping and preservative ALONE feeds billions in every supermarket worldwide. Electricity, lights, power, heat, refrigeration, sterilization, .....
He reminds me of one of the chicks that was tutored by Foghord Leghorn.
This is somethiing that I don’t care about, for i will be dust by then!
None of these aholes will be alive to see...well, nothing unusual.
5.56mm
You shut your quinoa hole, heretic...
Science uses the scientific method.
Climate “science” uses computer models.
Computer models do not use the scientific method.
Computer models are not science.
Predicting the future with computer models is akin to reading chicken entrails for the same purpose, except that chicken entrails have a better track record.
I’m not going to worry about it.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.