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originally posted by: TheRedneck
a reply to: ManBehindTheMask
I honestly believe the Internet now is doing the opposite of what it was designed to do. I remember a time when I could type about anything into a search engine and come up with views from either side of the issue. Sure, some were so far "out there" they were barely visible to the naked eye from Earth, but they were there. Along with everything in between.
Now type in any political question and you get page after page after page of the official narrative, and nothing about any differing opinions. Just try it with anything Global Warming related... you'll usually need to go through 5 or 6 pages of "OMG! We're all doomed! Carbon Credits, save us!" before you get to a single page that actually speaks to the science. It's information overload on a scale that, a few scant years ago, I could not have imagined.
And, of course, the Internet is made up of computers! Computers are smart! Computers have Artificial Intelligence now! We must believe the computers! The computers will save us!
Yeah, right. In 1969, the USA put men on the moon and safely returned them to Earth using slide rules. Now we have supercomputers that can execute calculations at billions of cycles per second... and Artemis I is still sitting in the repair bay working on the goal of being the most expensive paperweight ever built. We cannot seem to figure out how to make it go up without blowing up in the process. Tell me again how computers are always right?
The simple fact is that, like everything else around us, the Internet, the one-time savior of open expression and truth, has been turned against both. it is now just more propaganda. I should have added that to my list: "Internet: corrupted"
TheRedneck
originally posted by: nonspecific
a reply to: Asmodeus3
That WSJ article is 25 years old and behind a paywall.
With something like this you really cant be using things that are 25 years old now. or nearly 10 years old either.
originally posted by: nonspecific
a reply to: Asmodeus3
With something like this you really cant be using things that are 25 years old now. or nearly 10 years old either.
Things change at a rather fast pace and what was once thought or known becomes obsolete.
These guys work fast, some claim they work at the speed of science.
originally posted by: TheRedneck
a reply to: Asmodeus3
Freeman Dyson... isn't he the guy who came up with the (thus far theoretical as we are nowhere close to actually being able to construct one) Dyson Sphere? The concept of creating a spherical structure around a star that could harvest nearly 100% of its energy?
I've actually read up on the concept, as I thought the idea was nonsensical at first... but it turns out Dyson's actual concept is well-rooted in science and theoretically very possible given the technology to actually perform the construction. Smart fellow!
I watched a few minutes of that video interview. He is quite correct when he says that computer models are great for understanding a system, but can be very poor at predicting how an unknown system will react. The purpose of computer models of an unknown system is to identify all the potential feedbacks in the system, and until those feedbacks are identified and accurately quantified, they are simply a research tool and not a predictive tool.
I find the very concept of doom and gloom over 400 ppmv CO2 to be fantastical itself. Of course the planet is greening under the influence... we have known for quite some time that plants thrive better in higher concentrations of CO2. Plant life uses CO2 and sunlight in the same way we use oxygen, Photosynthesis results in the equation CO2+2H2O -> 2O2+C+4H (used for organic molecules, aka food). that's an endothermic reaction; it requires energy from sunlight (via the Cl- ion, which is why plants are green). Animal life on the other hand, uses a reverse exothermic (produces energy) equation: O2+C (from food) -> CO2. In other words, plant life produces oxygen for us from carbon dioxide, the same way we produce carbon dioxide from oxygen for plants.
Commercial greenhouses use elevated levels of CO2 (as high as 1500 ppmv) to speed up plant growth, and have for decades. Why would we expect different (actually opposite) results on a larger scale (planetary versus a greenhouse)?
The result is another known and well-understood scientific principle: water evaporation is one of the most efficient cooling mechanisms known to mankind. We use evaporational cooling regularly in industrial applications where more common and cheaper household methods (Freon-based heat pumps and air conditioning) are simply too inefficient. Plants give off water through their "pores" during the photosynthesis reaction, so they also cool the air in relation to the amount of photosynthesis occurring, which is also proportional to how much carbon dioxide is available.
In summary, as the amount of CO2 in the atmosphere increases, the planet greens. As the planet greens, the greening cools the planet and offsets any minor "greenhouse effect" from the increased CO2 levels. The only question is, by how much? The answer to that appears to be near 100%.
I have here, on this very computer (and backed up on others) a complete spreadsheet of NOAA temperature readings from the nearest large city. The data goes back to 1950 and extends to today. Using that data, I calculate the average temperatures and chart any potential increase/decrease in those average temperatures over a span of 72 years. The result? No noticeable long-term variations. I did discover that we were under a warming cycle for a while, after being in a cooling cycle prior to 1960 and since around 2000 (the exact minima and maxima are difficult to accurately quantify visually and I have not completed the Fourier analysis I intend to do; that should give me a very close cycle period).
In other words, it is a cycle with a period of, based on what i can see with my eyes graphically, 60-80 years.
Early in the 20th century, CO2 levels were less than 300 ppmv. Plant life starts to struggle to survive around 270 ppmv. From that perspective, any additional CO2 we added to the atmosphere from fossil fuels has been a blessing... without it, the food chain would not be able to support us today. We should be celebrating the fact that our involvement for once has resulted in a positive effect, not terrified of fantastical imaginings of politicians looking to pad their pockets with new and innovative ways to tax us.
TheRedneck
originally posted by: nonspecific
a reply to: TheRedneck
Id say that if we are talking about climate change and its effects and possible cause then 25 years is a pretty long time wouldn't you?
I'm not talking about the laws of physics I'm talking about the available data and what we know about the universe.
originally posted by: Asmodeus3
originally posted by: TheRedneck
a reply to: Asmodeus3
Freeman Dyson... isn't he the guy who came up with the (thus far theoretical as we are nowhere close to actually being able to construct one) Dyson Sphere? The concept of creating a spherical structure around a star that could harvest nearly 100% of its energy?
I've actually read up on the concept, as I thought the idea was nonsensical at first... but it turns out Dyson's actual concept is well-rooted in science and theoretically very possible given the technology to actually perform the construction. Smart fellow!
I watched a few minutes of that video interview. He is quite correct when he says that computer models are great for understanding a system, but can be very poor at predicting how an unknown system will react. The purpose of computer models of an unknown system is to identify all the potential feedbacks in the system, and until those feedbacks are identified and accurately quantified, they are simply a research tool and not a predictive tool.
I find the very concept of doom and gloom over 400 ppmv CO2 to be fantastical itself. Of course the planet is greening under the influence... we have known for quite some time that plants thrive better in higher concentrations of CO2. Plant life uses CO2 and sunlight in the same way we use oxygen, Photosynthesis results in the equation CO2+2H2O -> 2O2+C+4H (used for organic molecules, aka food). that's an endothermic reaction; it requires energy from sunlight (via the Cl- ion, which is why plants are green). Animal life on the other hand, uses a reverse exothermic (produces energy) equation: O2+C (from food) -> CO2. In other words, plant life produces oxygen for us from carbon dioxide, the same way we produce carbon dioxide from oxygen for plants.
Commercial greenhouses use elevated levels of CO2 (as high as 1500 ppmv) to speed up plant growth, and have for decades. Why would we expect different (actually opposite) results on a larger scale (planetary versus a greenhouse)?
The result is another known and well-understood scientific principle: water evaporation is one of the most efficient cooling mechanisms known to mankind. We use evaporational cooling regularly in industrial applications where more common and cheaper household methods (Freon-based heat pumps and air conditioning) are simply too inefficient. Plants give off water through their "pores" during the photosynthesis reaction, so they also cool the air in relation to the amount of photosynthesis occurring, which is also proportional to how much carbon dioxide is available.
In summary, as the amount of CO2 in the atmosphere increases, the planet greens. As the planet greens, the greening cools the planet and offsets any minor "greenhouse effect" from the increased CO2 levels. The only question is, by how much? The answer to that appears to be near 100%.
I have here, on this very computer (and backed up on others) a complete spreadsheet of NOAA temperature readings from the nearest large city. The data goes back to 1950 and extends to today. Using that data, I calculate the average temperatures and chart any potential increase/decrease in those average temperatures over a span of 72 years. The result? No noticeable long-term variations. I did discover that we were under a warming cycle for a while, after being in a cooling cycle prior to 1960 and since around 2000 (the exact minima and maxima are difficult to accurately quantify visually and I have not completed the Fourier analysis I intend to do; that should give me a very close cycle period).
In other words, it is a cycle with a period of, based on what i can see with my eyes graphically, 60-80 years.
Early in the 20th century, CO2 levels were less than 300 ppmv. Plant life starts to struggle to survive around 270 ppmv. From that perspective, any additional CO2 we added to the atmosphere from fossil fuels has been a blessing... without it, the food chain would not be able to support us today. We should be celebrating the fact that our involvement for once has resulted in a positive effect, not terrified of fantastical imaginings of politicians looking to pad their pockets with new and innovative ways to tax us.
TheRedneck
They believe carbon dioxide is a pollutant...
Hence there needs to be very little in the atmosphere so we won't get fried due to global warming.
I think it's about 270-280 parts per million for CO2 when photosynthesis is no longer possible and we get extinct.
Freeman Dyson was a star 🌟 and unfortunately is no longer with us. Very critical how science has been corrupted by various ideologies and politics and very critical of the political establishment.
As for the Dyson sphere, it doesn't necessarily needs to be a sphere... A structure that can harvest plenty of energy directly from the sun is considered a Dyson sphere.
originally posted by: nonspecific
a reply to: Asmodeus3
So are you saying that an article from 25 years is as scientifically valid as one from now?
I find that interesting.
I'm not talking about the laws of physics I'm talking about the available data and what we know about the universe.
So are you saying that an article from 25 years is as scientifically valid as one from now?
I find that interesting.