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Ancient Climate Change Triggered Warming That Lasted Thousands of Years (phys.org)
An anonymous reader quotes a report from Phys.Org: A rapid rise in temperature on ancient Earth triggered a climate response that may have prolonged the warming for many thousands of years, according to scientists. Their study, published online in Nature Geoscience, provides new evidence of a climate feedback that could explain the long duration of the Paleocene-Eocene Thermal Maximum (PETM), which is considered the best analogue for modern climate change. The findings also suggest that climate change today could have long-lasting impacts on global temperature even if humans are able to curb greenhouse gas emissions.
Increased erosion during the PETM, approximately 56 million years ago, freed large amounts of fossil carbon stored in rocks and released enough carbon dioxide, a greenhouse gas, into the atmosphere to impact temperatures long term, researchers said. Scientists found evidence for the massive carbon release in coastal sediment fossil cores. They analyzed the samples using an innovative molecular technique that enabled them to trace how processes like erosion moved carbon in deep time. Global temperatures increased by about 9 to 14.4 degrees Fahrenheit during the PETM, radically changing conditions on Earth. Severe storms and flooding became more common, and the warm, wet weather led to increased erosion of rocks. As erosion wore down mountains over thousands of years, carbon was released from rocks and transported by rivers to oceans, where some was reburied in coastal sediments. Along the way, some of the carbon entered the atmosphere as greenhouse gas.
Increased erosion during the PETM, approximately 56 million years ago, freed large amounts of fossil carbon stored in rocks and released enough carbon dioxide, a greenhouse gas, into the atmosphere to impact temperatures long term, researchers said. Scientists found evidence for the massive carbon release in coastal sediment fossil cores. They analyzed the samples using an innovative molecular technique that enabled them to trace how processes like erosion moved carbon in deep time. Global temperatures increased by about 9 to 14.4 degrees Fahrenheit during the PETM, radically changing conditions on Earth. Severe storms and flooding became more common, and the warm, wet weather led to increased erosion of rocks. As erosion wore down mountains over thousands of years, carbon was released from rocks and transported by rivers to oceans, where some was reburied in coastal sediments. Along the way, some of the carbon entered the atmosphere as greenhouse gas.
No wonder they slaughtered mammoths, it was to decrease methane emissions!
Man, those Chinese climate hoaxers just don't know when to quit do they?
The title should be...
Ancient Climate Change Caused Mass Extinction Less Severe Than Projected Future
If we don't do take action soon then in a billion years some creature may be digging up fossils trying to figure out what caused our present mass extinction event.
Anons need not reply. Questions end with a question mark.
That sounds reasonable. A 200,000 year long process now takes 100 years. I hope geological changes speed up the same way. That'd move the next Yellowstone caldera eruption from sometime in the next 600,000 years, to possibly next Thursday. Just enough time to plan an apocalypse party!
Serious? Seriousness is well above my pay grade.
There is a Wikipedia entry:
WorldNetDaily (WND) is an American news and opinion website and online news aggregator which has been described as "fringe" and far right[6] as well as politically conservative.[7] The website is known for promoting falsehoods and conspiracy theories.[16]
I'm going to go out on a limb and say they are not a source of reliable information.
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Ned Nikolov, Ph.D.
I looked up who this guy was and oh boy.
Scientists published climate research under fake names. Then they were caught.
Excerpt about the paper.
The withdrawn study “is just a curve-fitting exercise of five data points using four free parameters and as many functional forms as they could think of,” Schmidt, an expert in atmospheric climate modeling, said in an email. Like the previous pseudonymous research, “it too has nothing fundamental to add.”
He added, “The authors’ insistence that they are ‘contradicting mainstream theory’ is just delusional self-aggrandizement.”
Anons need not reply. Questions end with a question mark.
The same way that people eventually die from natural causes, so how can someone shooting people be related to people dying now?
It's turtles all the way down.
Preying upon the Dinosaurs and forcing them to evolve into birds. They saw their fate coming so implanted the designs for their resurrection into promising mamals so that in the distant future they could be resurrected and begin the cycle anew.
Have you looked closely at the pictures of Henry Ford he's at least three quarters metal.
Of course it doesn't take much to cause warming, there's only a few vehicles on mars and they are solar electric yet that planet is warming.
Throughout history greed wins Everytime. Especially among Americans who consider it socialism to do anything about it
http://saveie6.com/
Homer isn't your typical human.
You don't get flatulence from donuts.
Beans cause farts because they contain oligosaccharide which is difficult to digest, and reaches the lower intestines intact, where it is metabolized by bacteria.
Donuts are the opposite. They contain simple sugars and refined starch that rapidly breaks down in the upper intestines. There is little left for the bacteria.
From https://www.wnd.com/2017/07/st...
Eventually, their true identities were discovered, and so, the journal, Advances in Space Research, retracted the paper, though the editors acknowledged that the retraction was “not related to the scientific merit of the study.”
Nikolov told WND that the main reason for using fake names was federal policy under the Obama administration.
“I was told by my superiors that I could not publish anything on climate as a government employee,” he said, adding that he works for the U.S. Forest Service but that the research “was done in my private time, has nothing to do with my work, and does not represent the position of my employer.”
He's not new, he's said this shit before, no it was not an honest question.
It'd be nice if you were right. Unfortunately not. CO2 is indeed potent compared to O2 and nitrogen for its warming. I mean, CO will kill you at trace amounts so it's not like a trace gas isn't known to have a strong effect.
Water vapour does cause warming too but has 2 key differences. First it was already there, we didn't upset the balance by adding to it, so it's not forcing but a feedback from the forcing. Second it is radiative in both directions, it can also cool, whereas CO2 is more opaque to the heat at the wavelengths leaving Earth.
To your point on the benefits of more CO2, the greening of the planet already happened and it did indeed offset some of our emissions. However, plants can only absorb so much extra, they need other nutrients and fresh water and have physical limits. We've long passed that one, sorry.
What happened to all the people who claimed the world was going to end in 2012?
They learned how calendars work, even really old ones.
Wanna buy a shirt?
https://www.redbubble.com/people/stealthfinger/shop?asc=u