August 27, 2025
Truth Decay: Dino's Flourished in High CO)2 Levels
Timothy Birdnow
Why lookie here; forensic archaeological dentistry confirms what we "climate change deniars" have said all along - the Earth's atmosphere had far more carbon dioxide in the past than now.
Naturally; they had more of what plants like to convert sunlight to energy. Plants love carbon dioxide and in fact greenhouses are often injected with high doses of it to help the plants grown.
The article continues:
Notice the wording "air contained around four times as much carbon dioxide as it did before industrialization". What they fail to say is it STILL contained far, far more c02 than oxygen then. But the implications were obvious to the author of this article and so he worded it to suggest we are close to the carbon dioxide levels now.
The implications are obvious; atmospheric carbon dioxide rises and falls of it's own accord and there is every reason to believe the small increase in atmospheric co2 in the modern Holocene is entirely driven by natural causes and not by the release of carbon dioxide from industrial emissions and automobiles.
In fact the age of the Dinosaurs might well have ended when carbon dioxide levels dropped TOO low. We are certainly in an age with some of the lowest co2 levels in geological history; the Dinos evolved to breath air with lots of co2. It's much like putting an alligator in the desert; he'll eventually die, even though he's capable of living on land. And even if it didn't directly hurt the dinos it may well have disrupted the food chain.
But, but, but...you say the Chicxulub asteroid caused a lot of carbon dioxide outgassing! True, but it also saw a huge amount of sulphur released, which may well have bound up the co2 into calcium carbonate (forming limestone in the seas) and it may have bound up with watter vapor to produce methane. (Wish I could talk to Richard Cronin about this; he's the geochemist.)
At any rate it's clear that it's not clear at all. But the notion that the planet cannot survive a modest increase (and by modest I mean just the addition of one molecule of carbon dioxide for every ten thousand molecules of air) is ridiculous. The planet actually did better with higher co2. CO2 is the stuff of life, even for animals (as it is the building blocks of carbohydrates - the stuff of which we are composed.)
BTW paleontologists believe dinosaurs had lungs similar to birds, far more efficient than Mammals. Birds can extract 25% more oxygen from air than can mammals (making them better adapted for flying where the air is thin than, say, bats). It may well be they actually did better with higher levels of co2; they weren't equipped to handle higher levels of oxygen. Birds have air sacs and when they exhale their bodies harvest more oxygen from those sacs. It may well be higher carbon dioxide makes those sacs work more efficiently. In humans we need some carbon dioxide in the air for a variety of reasons. Pure oxygen makes us sick. In fact it poisons our system; it slows our breathing and heart rates to dangerous levels. We NEED co2 and nitrogen in our air. It may be birds - and by extension dinosaurs - need it too. Dinosaurs may have needed more of it. I know I'm taking a shot in the dark but perhaps it is so. I wonder if it's not like cutting your whiskey with water. Frankly, in nature there are all sorts of things we need to survive that, in too concentrated a form, will kill us. Potassium for instance, is necessary for life but too much stops our hearts (it's what they inject into condemned criminals). Maybe the extra co2 was needed by the Dynosaurs.
At any rate, even if that is not so it still illustrates how the bosphere flourished in a higher carbon-dioxide atmosphere. Just another nail in the Gang Green's War of the Worlds scare.
Why lookie here; forensic archaeological dentistry confirms what we "climate change deniars" have said all along - the Earth's atmosphere had far more carbon dioxide in the past than now.
A surprising new line of evidence is providing fresh insights into Earth’s ancient climate. Fossilized dinosaur teeth reveal that the atmosphere during the Mesozoic era (between 252 and 66 million years ago) contained much higher levels of carbon dioxide than today. This conclusion comes from a study led by researchers at the Universities of Göttingen, Mainz, and Bochum, who examined oxygen isotopes preserved in tooth enamel. Their approach relies on a newly developed technique that offers exciting opportunities for studying Earth’s climate history.
The analysis also showed that global photosynthesis, the process by which plants convert sunlight into energy, was occurring at about twice the rate seen today. According to the researchers, this surge in plant activity likely played a role in shaping the highly dynamic climate that existed during the time of the dinosaurs. The team’s findings were published in the journal PNAS.
The analysis also showed that global photosynthesis, the process by which plants convert sunlight into energy, was occurring at about twice the rate seen today. According to the researchers, this surge in plant activity likely played a role in shaping the highly dynamic climate that existed during the time of the dinosaurs. The team’s findings were published in the journal PNAS.
Naturally; they had more of what plants like to convert sunlight to energy. Plants love carbon dioxide and in fact greenhouses are often injected with high doses of it to help the plants grown.
The article continues:
To reach these results, the scientists studied dinosaur teeth unearthed in North America, Africa, and Europe from both the late Jurassic and late Cretaceous periods. Tooth enamel, one of the hardest and most resilient biological substances, preserves oxygen isotope signatures that record what dinosaurs inhaled as they breathed. Because the ratio of oxygen isotopes is influenced by atmospheric carbon dioxide and plant photosynthesis, these traces provide a valuable window into both climate conditions and vegetation during the age of the dinosaurs.
In the late Jurassic period, around 150 million years ago, the air contained around four times as much carbon dioxide as it did before industrialization – that is, before humans started emitting large quantities of greenhouse gases into the atmosphere.
And in the late Cretaceous period, around 73 to 66 million years ago, the level was three times as high as today. Individual teeth from two dinosaurs – Tyrannosaurus rex and another known as Kaatedocus siberi which is related to Diplodocus – contained a strikingly unusual composition of oxygen isotopes.
In the late Jurassic period, around 150 million years ago, the air contained around four times as much carbon dioxide as it did before industrialization – that is, before humans started emitting large quantities of greenhouse gases into the atmosphere.
And in the late Cretaceous period, around 73 to 66 million years ago, the level was three times as high as today. Individual teeth from two dinosaurs – Tyrannosaurus rex and another known as Kaatedocus siberi which is related to Diplodocus – contained a strikingly unusual composition of oxygen isotopes.
Notice the wording "air contained around four times as much carbon dioxide as it did before industrialization". What they fail to say is it STILL contained far, far more c02 than oxygen then. But the implications were obvious to the author of this article and so he worded it to suggest we are close to the carbon dioxide levels now.
The implications are obvious; atmospheric carbon dioxide rises and falls of it's own accord and there is every reason to believe the small increase in atmospheric co2 in the modern Holocene is entirely driven by natural causes and not by the release of carbon dioxide from industrial emissions and automobiles.
In fact the age of the Dinosaurs might well have ended when carbon dioxide levels dropped TOO low. We are certainly in an age with some of the lowest co2 levels in geological history; the Dinos evolved to breath air with lots of co2. It's much like putting an alligator in the desert; he'll eventually die, even though he's capable of living on land. And even if it didn't directly hurt the dinos it may well have disrupted the food chain.
But, but, but...you say the Chicxulub asteroid caused a lot of carbon dioxide outgassing! True, but it also saw a huge amount of sulphur released, which may well have bound up the co2 into calcium carbonate (forming limestone in the seas) and it may have bound up with watter vapor to produce methane. (Wish I could talk to Richard Cronin about this; he's the geochemist.)
At any rate it's clear that it's not clear at all. But the notion that the planet cannot survive a modest increase (and by modest I mean just the addition of one molecule of carbon dioxide for every ten thousand molecules of air) is ridiculous. The planet actually did better with higher co2. CO2 is the stuff of life, even for animals (as it is the building blocks of carbohydrates - the stuff of which we are composed.)
BTW paleontologists believe dinosaurs had lungs similar to birds, far more efficient than Mammals. Birds can extract 25% more oxygen from air than can mammals (making them better adapted for flying where the air is thin than, say, bats). It may well be they actually did better with higher levels of co2; they weren't equipped to handle higher levels of oxygen. Birds have air sacs and when they exhale their bodies harvest more oxygen from those sacs. It may well be higher carbon dioxide makes those sacs work more efficiently. In humans we need some carbon dioxide in the air for a variety of reasons. Pure oxygen makes us sick. In fact it poisons our system; it slows our breathing and heart rates to dangerous levels. We NEED co2 and nitrogen in our air. It may be birds - and by extension dinosaurs - need it too. Dinosaurs may have needed more of it. I know I'm taking a shot in the dark but perhaps it is so. I wonder if it's not like cutting your whiskey with water. Frankly, in nature there are all sorts of things we need to survive that, in too concentrated a form, will kill us. Potassium for instance, is necessary for life but too much stops our hearts (it's what they inject into condemned criminals). Maybe the extra co2 was needed by the Dynosaurs.
At any rate, even if that is not so it still illustrates how the bosphere flourished in a higher carbon-dioxide atmosphere. Just another nail in the Gang Green's War of the Worlds scare.
Posted by: Timothy Birdnow at
08:14 AM
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I hope dear Ms. Thunberg reads our site; I'm sure she'd be interested in this information and will thank you for it! In 5... 4... 3...
Posted by: Dana Mathewson at August 29, 2025 12:04 AM (I0k6B)
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