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'Great Dying': Rapid Warming Caused Largest Extinction Event Ever, Report Says (theguardian.com)
Rapid global warming caused the largest extinction event in the Earth's history, which wiped out the vast majority of marine and terrestrial animals on the planet, scientists have found. The mass extinction, known as the "great dying," occurred around 252m years ago and marked the end of the Permian geologic period. The study of sediments and fossilized creatures show the event was the single greatest calamity ever to befall life on Earth, eclipsing even the extinction of the dinosaurs 65m years ago. Up to 96% of all marine species perished while more than two-thirds of terrestrial species disappeared. The cataclysm was so severe it wiped out most of the planet's trees, insects, plants, lizards and even microbes.
The researchers used paleoceanographic records and built a model to analyze changes in animal metabolism, ocean and climate conditions. When they used the model to mimic conditions at the end of the Permian period, they found it matched the extinction records. According to the study, this suggests that marine animals essentially suffocated as warming waters lacked the oxygen required for survival. The great dying event, which occurred over an uncertain timeframe of possibly hundreds of years, saw Earth's temperatures increase by around 10C (18F). Oceans lost around 80% of their oxygen, with parts of the seafloor becoming completely oxygen-free. Scientists believe this warming was caused by a huge spike in greenhouse gas emissions, potentially caused by volcanic activity. |
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| There are no conversations. |
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| cauz |
Dec. 8, 2018, 3:20 p.m. |
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| Elisabeth Kubler-Ross |
The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of those depths. |
| Scott Adams |
Scientists will eventually stop flailing around with solar power and focus their efforts on harnessing the only truly unlimited source of energy on the planet: stupidity. I predict that in the future, scientists will learn how to convert stupidity into clean fuel. |
| Diane Ackerman |
Just as our ancient ancestors drew animals on cave walls and carved animals from wood and bone, we decorate our homes with animal prints and motifs, give our children stuffed animals to clutch, cartoon animals to watch, animal stories to read. |
| Bill de Blasio |
As N.Y.C. Public Advocate, I released a report that showed that stop-and-frisks of African Americans in 2012 were barely half as likely to yield a weapon as those of white New Yorkers - and a third less likely to yield contraband. Despite this evidence, the vast majority of those stopped are young black and Latino men. |
| Robert Ballard |
Almost a quarter of our planet is a single mountain range and we didn't enter it until after Neil Armstrong and Buzz Aldrin went to the moon. So we went to the moon, played golf up there, before we went to the largest feature on our own planet. |
| Dianne Feinstein |
Global warming is real. It is happening today. It is being charted by our satellites. It is being charted by our scientists. It is being charted by those of us in this body, and I think the real key is if we are ready to admit that fact and take the action to make the necessary conversion. |
| Roman Jakobson |
Semantics, or the study of meaning, remained undeveloped, while phonetics made rapid progress and even came to occupy the central place in the scientific study of language. |
| Sylvia Earle |
Ocean acidification - the excess carbon dioxide in the atmosphere that is turning the oceans increasingly acid - is a slow but accelerating impact with consequences that will greatly overshadow all the oil spills put together. The warming trend that is CO2-related will overshadow all the oil spills that have ever occurred put together. |
| Jim Garrison |
Until as recently as November of 1966, I had complete faith in the Warren Report. Of course, my faith in the Report was grounded in ignorance, since I had never read it. |
| Adam Davidson |
If the American government can't stand behind the dollar, the world's benchmark currency, then the global financial system will very likely enter a new era in which there is much less trade and much less economic growth. It would be, by most accounts, the largest self-imposed financial disaster in history. |
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Mars Had Big Rivers For Billions of Years, Study Suggests
A new study suggests that Mars once had giant rivers larger than anything on Earth after the planet lost most of its atmosphere to space. "That great thinning, which was driven by air-stripping solar particles, was mostly complete by 3.7 billion years ago, leaving Mars with an atmosphere far wispier than Earth's," reports Space.com. "But Martian rivers likely didn't totally dry out until less than 1 billion years ago, the new study found." From the report:
"We can start to see that Mars didn't just have one wet period early in its history and then dried out," study lead author Edwin Kite, an assistant professor of geophysical scien...
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Scientists Find Way To Make Mineral Which Can Remove CO2 From Atmosphere
An anonymous reader quotes a report from Phys.Org:
Scientists have found a rapid way of producing magnesite, a mineral which stores carbon dioxide. If this can be developed to an industrial scale, it opens the door to removing CO2 from the atmosphere for long-term storage, thus countering the global warming effect of atmospheric CO2. This work is presented at the Goldschmidt conference in Boston. Now, for the first time, researchers have explained how magnesite forms at low temperature, and offered a route to dramatically accelerating its crystallization. A tonne of naturally-occurring magnesite can remove around half...
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A Chinese-Built Replica of the Titanic Will Set Sail From Dubai in 2022
Great news for Celine Dion fans and James Cameron enthusiasts: The Titanic is set to sail again. From a report:
Titanic II, a replica of the original Titanic, will make its first voyage in 2022. It will have room for 2,400 passengers and 900 crew members and have the same cabin layout and decor as the original legendary ocean liner. The $500 million ship, which will be built in China, is set to make its maiden voyage from Dubai to Southhampton, U.K in 2022.
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With all the information coming out in recent years about geoengineering, or chemtrails, we must begin to ask ourselves certain questions about the impacts on our health, our food, and our planet. There are obvious human-health-related and planetary-ecosystem-related implications to being ?crop-dusted? with heavy metals and chemicals daily. Let?s also ask ourselves an imperative question here: When we buy ?organic? food, are we really buying what we think we?re buying (i.e. pure, nutrient dense food)?
Defining healthfully-grown food in the geoengineering era
Is the ?organic? label really worth as much as years past, before heavy and daily geoengineering? Organic food is grown without the u...
This post is a comment.
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#global warming
This post is a comment.
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TIL Human genome is 3.3Gb in size. HIV virus is only 9.7kb. Largest known virus genome is 2.47Mb (pandoravirus salinus). Largest known vertebrate genome is 130Gb (marbled lungfish). Largest known plant genome is 150Gb (paris japonica). Largest known genome is 670Gb (Amoeboid) but is disputed.
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Spent half of Saturday volunteering at a Girls in Tech event at UT Austin. My activity wasn't the coolest and nobody took pictures of us, but every single one of the girls who stopped by smiled and laughed while building a chatbot and that's got to count for something, right?
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I had a dream that there were these two aquatic animals and they were both parasites but one was like the size of a squirrel and one was like a small beetle. The larger one attached it self to some cat sized aquatic mammal, like a beaver or something and it was trying to kill the animal to feed it's babies and then the small parasite latched onto the bigger one and triggered something to happen to it and it's head opened up and there was this exposed brain and it was dying at the same time the larger animal was dying. So weird.
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Finally some acknowledgment of the data falsification which has helped to hide the true state of the climate. Many have been convinced that data is being cheated to the upside, however, an objective examination of this notion clearly shows the opposite is true.
Dane Wigington
geoengineeringwatch.org
This study was just released. Even though the light is starting to shine on the total falsification of data/temp reporting to the down side, this study still does not indicate the immense gravity ...
This post is a comment.
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One of the World's Largest Organisms is Shrinking (sciencemag.org)
The Pando aspen grove, located in central Utah, is the largest organism on the planet by weight. From the surface, it may look like a forest that spans more than 100 U.S. football fields, but each tree shares the exact same DNA and is connected to its clonal brethren through an elaborate underground root system. Although not quite as large in terms of area as the massive Armillaria gallica fungus in Michigan, Pando is much heavier, weighing in at more than 6 million kilograms. Now, researchers say, the grove is in danger, being slowly eaten away by mule deer and other herbivores -- and putting the fate of its ecosystem in ...
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