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> But it is, it’s the topic of physics, not history. The historical remains are by nature very incomplete and geology is extremely relevant when you try to inte

> But it is, it’s the topic of physics, not history. The historical remains are by nature very incomplete and geology is extremely relevant when you try to interpret the historical proxies, but all that doesn’t matter if you want to understand how warming works: physics is undeniable, and all effects are known and are part of the models: > https://www.bloomberg.com/graphics/2015-whats-warming-the-world/ https://www.bloomberg.com/graphics/2015-whats-warming-the-wo... There are no sources in this link. There is nothing about physics in this link. It simply describes a bunch of other forces and declares they are not applicable, therefore co2 is the only thing left and it must be the culprit. Forgive me, but science isn't a game of "Clue". Putting up a bunch of straw men and tearing them down doesn't mean that "the butler must have done it with the wrench", or in this case, co2 must have increased the temperature. And wasn't your link from the your last post primarily referring to the history of the earth as evidence of co2 production? So which is it? The case for undeniable physics, which you have not provided a link for, or from the evidence from geologic history, which you have abandoned. In the same spirit as your link, here is Leonard Nimoy talking about Global Cooling from the 1970's: https://www.youtube.com/watch?v=ei-_SXLMMfo https://www.youtube.com/watch?v=ei-_SXLMMfo . It has about the same amount of evidence. You can also check out https://en.wikipedia.org/wiki/Global_cooling https://en.wikipedia.org/wiki/Global_cooling to see the history of this. > Once again: it doesn’t help to say “it was warmer n millions years ago” if the continents weren’t the same and there were no humans. Our civilisation depends on many very fine tuned balances. Where did I say that "it was warmer n millions years ago" proves that increased co2 is not going to increase the temperature? I'm just saying you haven't shown it will. You are vehemently asserting, times were different then, so all I can conjecture is that you mean that we can throw that data out. I don't necessarily think so, but I also don't think that doing so proves your point. I can't prove co2 hasn't increased the temperature, but it's difficult to prove a negative. To wit, maybe an extreme example, but I can't prove the earth wasn't created 4000 years ago as per the Christian Bible, yet that doesn't mean it's true. I'm am saying that what you've shown doesn't prove that increased co2 is going to warm the earth to a significant degree, and the current situation isn't caused by other factors. To that point, it shares all the hallmarks of mass hysteria. A single central idea is put into the public consciousness, and each and every event is then linked to that event. I also ask you to respond point to point to what I've written rather than simply try and attack a single statement. I wish you'd have responded to what I wrote concerning the lack of transparency of your link from skepticalscience.com or the graph from co2levels.org. Why won't you address this?

acqq 8y ago
> There are no sources in this link Of course there is, in the very page: “Researchers who study the Earth's climate create models to test their assumptions about the causes and trajectory of global warming. Around the world there are 28 or so research groups in more than a dozen countries who have written 61 climate models. Each takes a slightly different approach to the elements of the climate system, such as ice, oceans, or atmospheric chemistry. The computer model that generated the results for this graphic is called "ModelE2," and was created by NASA's Goddard Institute for Space Studies (GISS), which has been a leader in climate projections for a generation. ModelE2 contains something on the order of 500,000 lines of code, and is run on a supercomputer at the NASA Center for Climate Simulation in Greenbelt, Maryland.” “GISS produced the results shown here in 2012, as part of its contribution to an international climate-science research initiative called the Coupled Model Intercomparison Project Phase Five. Let's just call it "Phase-5." Phase-5 is designed both to see how well models replicate known climate history and to make projections about where the world’s temperature is headed. Initial results from Phase-5 were used in the 2013 scientific tome published by the Intergovernmental Panel on Climate Change.” > The case for undeniable physics, which you have not provided a link for, or from the evidence from geologic history, which you have abandoned. The link is the summary of what calculating which physical formulas gives, as I've quoted. It's you who "doubt" in the "tree rings" and I've given you the context: tree rings are just a small piece of he whole picture, and what we know, including the levels of confidence from that part of science is still good enough to have a good picture of what is happening and what has happened before. But once again: not any single historical proxy is directly used when the physical formulas are applied. > In the same spirit as your link, here is Leonard Nimoy talking about Global Cooling That's a joke, right? I'm presenting you the results of the NASA's best computer models, and you are giving me a link to... what actually? Since when are TV shows a proof for anything? > I'm am saying that what you've shown doesn't prove that increased co2 is going to warm the earth to a significant degree, and the current situation isn't caused by other factors. And what you are saying is simply untrue. What I've given you is the result of a lot of precise calculations using the physical formulas and the values obtained by all the scientific work we have. And nobody ever has found any meaningful error in the physics we use. If you don't understand physics, I can imagine that it's hard to you to believe in something you simply don't understand, and I don't know your background to help you. What I can give you is a personal page maintained by one English PhD in Chemistry, Dr Jack Barrett, which was known as the "global warming skeptic" in the 90ties (you can Google his name, at the time the other person mentioned on his page was also active in "denying", this other guy was a reasonably famous face in Britain, but also uninformed at then). But then Barrett tried to learn the physical processes, relevant for climate, which he missed while pursuing his career in chemistry. And if you read his newer material, he is now completely convinced that the physics is absolutely valid and confirming the warming: http://www.barrettbellamyclimate.com http://www.barrettbellamyclimate.com Everybody who has enough knowledge to be able to check the formulas and who has enough integrity to admit what he didn't know, and who doesn't have some hidden agenda would have to come to the same conclusion. Read the pages on his site. It's the most honest outcome of a former "doubter" I know of. There are still some "old" page from the time when he "was not convinced" but if you are really interested in the formulas and science behind all this, you will find enough there, I believe he updated most of his site to that what he knows and understands now (edit: I've checked, he still just updates the "news" pages, i.e: http://www.barrettbellamyclimate.com/page4.htm http://www.barrettbellamyclimate.com/page4.htm and http://www.barrettbellamyclimate.com/page5.htm http://www.barrettbellamyclimate.com/page5.htm ) It's about the formulas and measurements. Note: I'm not saying "take that guy as a reference." I'm saying: he's the guy who didn't know enough but was willing to learn and made enough notes, so if you are actually interested in some formulas "for beginners" you can find them there. If you'd want something even "more serious"... you'd need at last university level material, which of course exists too...

acqq 8y ago

> There are no sources in this link Of course there is, in the very page: “Researchers who study the Earth's climate create models to test their assumptions about the causes and trajectory of global warming. Around the world there are 28 or so research groups in more than a dozen countries who have written 61 climate models. Each takes a slightly different approach to the elements of the climate system, such as ice, oceans, or atmospheric chemistry. The computer model that generated the results for this graphic is called "ModelE2," and was created by NASA's Goddard Institute for Space Studies (GISS), which has been a leader in climate projections for a generation. ModelE2 contains something on the order of 500,000 lines of code, and is run on a supercomputer at the NASA Center for Climate Simulation in Greenbelt, Maryland.” “GISS produced the results shown here in 2012, as part of its contribution to an international climate-science research initiative called the Coupled Model Intercomparison Project Phase Five. Let's just call it "Phase-5." Phase-5 is designed both to see how well models replicate known climate history and to make projections about where the world’s temperature is headed. Initial results from Phase-5 were used in the 2013 scientific tome published by the Intergovernmental Panel on Climate Change.” > The case for undeniable physics, which you have not provided a link for, or from the evidence from geologic history, which you have abandoned. The link is the summary of what calculating which physical formulas gives, as I've quoted. It's you who "doubt" in the "tree rings" and I've given you the context: tree rings are just a small piece of he whole picture, and what we know, including the levels of confidence from that part of science is still good enough to have a good picture of what is happening and what has happened before. But once again: not any single historical proxy is directly used when the physical formulas are applied. > In the same spirit as your link, here is Leonard Nimoy talking about Global Cooling That's a joke, right? I'm presenting you the results of the NASA's best computer models, and you are giving me a link to... what actually? Since when are TV shows a proof for anything? > I'm am saying that what you've shown doesn't prove that increased co2 is going to warm the earth to a significant degree, and the current situation isn't caused by other factors. And what you are saying is simply untrue. What I've given you is the result of a lot of precise calculations using the physical formulas and the values obtained by all the scientific work we have. And nobody ever has found any meaningful error in the physics we use. If you don't understand physics, I can imagine that it's hard to you to believe in something you simply don't understand, and I don't know your background to help you. What I can give you is a personal page maintained by one English PhD in Chemistry, Dr Jack Barrett, which was known as the "global warming skeptic" in the 90ties (you can Google his name, at the time the other person mentioned on his page was also active in "denying", this other guy was a reasonably famous face in Britain, but also uninformed at then). But then Barrett tried to learn the physical processes, relevant for climate, which he missed while pursuing his career in chemistry. And if you read his newer material, he is now completely convinced that the physics is absolutely valid and confirming the warming: http://www.barrettbellamyclimate.com http://www.barrettbellamyclimate.com Everybody who has enough knowledge to be able to check the formulas and who has enough integrity to admit what he didn't know, and who doesn't have some hidden agenda would have to come to the same conclusion. Read the pages on his site. It's the most honest outcome of a former "doubter" I know of. There are still some "old" page from the time when he "was not convinced" but if you are really interested in the formulas and science behind all this, you will find enough there, I believe he updated most of his site to that what he knows and understands now (edit: I've checked, he still just updates the "news" pages, i.e: http://www.barrettbellamyclimate.com/page4.htm http://www.barrettbellamyclimate.com/page4.htm and http://www.barrettbellamyclimate.com/page5.htm http://www.barrettbellamyclimate.com/page5.htm ) It's about the formulas and measurements. Note: I'm not saying "take that guy as a reference." I'm saying: he's the guy who didn't know enough but was willing to learn and made enough notes, so if you are actually interested in some formulas "for beginners" you can find them there. If you'd want something even "more serious"... you'd need at last university level material, which of course exists too...