Blade_Runner wrote:
All this psychobabble because some progressive ideologues convinced you that human activity is causing a catastrophic greenhouse effect. I always thought there was a limit to how far human ignorance could sink, but you have removed all doubt.
In Their Own Words: Climate Alarmists Debunk Their 'Science'https://skepticalscience.com/empirical-evidence-for-global-warming.htmThe term “climate” is typically associated with annual world-wide average temperature records measured over at least three decades. Yet global warming observed less than two decades after many scientists had predicted a global cooling crisis prompted the United Nations to organize an Intergovernmental Panel on Climate Change (IPCC), and to convene a continuing series of international conferences purportedly aimed at preventing an impending catastrophe. Virtually from the beginning, they had already attributed the “crisis” to human fossil-fuel carbon emissions.
A remark from Maurice Strong, who organized the first U.N. Earth Climate Summit (1992) in Rio de Janeiro, Brazil revealed the real goal: “We may get to the point where the only way of saving the world will be for industrialized civilization to collapse.”
Former U.S. Senator Timothy Wirth (D-CO), then representing the Clinton-Gore administration as U.S undersecretary of state for global issues, addressing the same Rio Climate Summit audience, agreed: “We have got to ride the global warming issue. Even if the theory of global warming is wrong, we will be doing the right thing in terms of economic policy and environmental policy.” (Wirth now heads the U.N. Foundation which lobbies for hundreds of billions of U.S. taxpayer dollars to help underdeveloped countries fight climate change.)
Also speaking at the Rio conference, Deputy Assistant of State Richard Benedick, who then headed the policy divisions of the U.S. State Department said: “A global warming treaty [Kyoto] must be implemented even if there is no scientific evidence to back the [enhanced] greenhouse effect.”
In 1988, former Canadian Minister of the Environment, told editors and reporters of the Calgary Herald: “No matter if the science of global warming is all phony…climate change [provides] the greatest opportunity to bring about justice and equality in the world.”
In 1996, former Soviet Union President Mikhail Gorbachev emphasized the importance of using climate alarmism to advance socialist Marxist objectives: “The threat of environmental crisis will be the international disaster key to unlock the New World Order.”
Speaking at the 2000 U.N. Conference on Climate Change in the Hague, former President Jacques Chirac of France explained why the IPCC’s climate initiative supported a key Western European Kyoto Protocol objective: “For the first time, humanity is instituting a genuine instrument of global governance, one that should find a place within the World Environmental Organization which France and the European Union would like to see established.”
How Some Key IPCC Researchers View Their Science:
For starters, let’s begin with two different views by some of the same researchers that are reported in the same year regarding whether there is a discernible human influence on global climate.
First, taken from a 1996 IPCC report summary written by B.D. Santer, T.M.L Wigley, T.P. Barnett, and E. Anyamba: “…there is evidence of an emerging pattern of climate response to forcings by greenhouse gases and sulphate aerosols…from geographical, seasonal and vertical patterns of temperature change…These results point towards human influence on climate.”
Then, a 1996 publication “The Holocene”, by T.P. Barnett, B.D. Santer, P.D. Jones, R.S. Bradley and K.R. Briffa, says this: “Estimates of…natural variability are critical to the problem of detecting an anthropogenic [human] signal…We have estimated the spectrum…from paleo-temperature proxies and compared it with…general [climate] circulation models…none of the three estimates of the natural variability spectrum agree with each other…Until…resolved, it will be hard to say, with confidence, that an anthropogenic climate signal has or has not been detected.”
In other words, these guys, several of whom you will hear from later, can’t say with confidence whether or not humans have had any influence at all…or even if so, whether it has caused warming or cooling!
IPCC official Ottmar Edenhofer, speaking in November 2010, advised that: “…one has to free oneself from the illusion that international climate policy is environmental policy. Instead, climate change policy is about how we redistribute de facto the world’s wealth...”
The late Stephen Schneider, who authored The Genesis Strategy, a 1976 book warning that global cooling risks posed a threat to humanity, later changed that view 180 degrees, serving as a lead author for important parts of three sequential IPCC reports. In a quotation published in Discover, he said: “On the one hand, as scientists we are ethically bound to the scientific method, on the other hand, we are not just scientists, but human beings as well. And like most people, we’d like to see the world a better place, which in this context translates into our working to reduce the risk of potentially disastrous climatic change. To do that, we need to get some broad-based support, to capture the public’s imagination. That, of course, entails getting loads of media coverage. So we have to offer up scary scenarios, make simplified, dramatic statements, and make little mention of the doubts we might have. Each of us has to decide what the right balance is between being effective and being honest.”
Kevin Trenberth, a lead author of 2001 and 2007 IPCC report chapters, writing in a 2007 “Predictions of Climate” blog appearing in the science journal Nature.com, admitted: “None of the models used by the IPCC are initialized to the observed state and none of the climate states in the models correspond even remotely to the current observed state”.
Christopher Landsea, a top expert on the subject of cyclones, became astounded and perplexed when he was informed that Trenberth had participated in a 2004 press conference following a deadly 2004 Florida storm season which had announced “Experts warn that global warming [is] likely to continue spurring more outbreaks of intense activity.” Since IPCC studies released in 1995 and 2001 had found no evidence of a global warming-hurricane link, and there was no new analysis to suggest otherwise, he wrote to leading IPCC officials imploring: “What scientific, refereed publications substantiate these pronouncements? What studies alluded to have shown a connection between observed warming trends on Earth and long-term trends of cyclone activity?”
Receiving no replies, he then requested assurance that the 2007 report would present true science, saying: “[Dr. Trenberth] seems to have come to a conclusion that global warming has altered hurricane activity, and has already stated so. This does not reflect consensus within the hurricane research community.” After that assurance didn’t come, Landsea, an invited author, resigned from the 2007 report activity and issued an open letter presenting his reasons.
All this psychobabble because some progressive ide... (
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https://skepticalscience.com/empirical-evidence-for-global-warming.htmClimate Myth...
There's no empirical evidence
"There is no actual evidence that carbon dioxide emissions are causing global warming. Note that computer models are just concatenations of calculations you could do on a hand-held calculator, so they are theoretical and cannot be part of any evidence." (David Evans)
The proof that man-made CO2 is causing global warming is like the chain of evidence in a court case. CO2 keeps the Earth warmer than it would be without it. Humans are adding CO2 to the atmosphere, mainly by burning fossil fuels. And there is empirical evidence that the rising temperatures are being caused by the increased CO2.
The Earth is wrapped in an invisible blanket
It is the Earth’s atmosphere that makes most life possible. To understand this, we can look at the moon. On the surface, the moon’s temperature during daytime can reach 100°C (212°F). At night, it can plunge to minus 173°C, or -279.4°F. In comparison, the coldest temperature on Earth was recorded in Antarctica: −89.2°C (−128.6°F). According to the WMO, the hottest was 56.7°C (134°F), measured on 10 July 1913 at Greenland Ranch (Death Valley).
Man could not survive in the temperatures on the moon, even if there was air to breathe. Humans, plants and animals can’t tolerate the extremes of temperature on Earth unless they evolve special ways to deal with the heat or the cold. Nearly all life on Earth lives in areas that are more hospitable, where temperatures are far less extreme.
Yet the Earth and the moon are virtually the same distance from the sun, so why do we experience much less heat and cold than the moon? The answer is because of our atmosphere. The moon doesn’t have one, so it is exposed to the full strength of energy coming from the sun. At night, temperatures plunge because there is no atmosphere to keep the heat in, as there is on Earth.
The laws of physics tell us that without the atmosphere, the Earth would be approximately 33°C (59.4°F) cooler than it actually is.
This would make most of the surface uninhabitable for humans. Agriculture as we know it would be more or less impossible if the average temperature was −18 °C. In other words, it would be freezing cold even at the height of summer.
The reason that the Earth is warm enough to sustain life is because of greenhouse gases in the atmosphere. These gases act like a blanket, keeping the Earth warm by preventing some of the sun’s energy being re-radiated into space. The effect is exactly the same as wrapping yourself in a blanket – it reduces heat loss from your body and keeps you warm.
If we add more greenhouse gases to the atmosphere, the effect is like wrapping yourself in a thicker blanket: even less heat is lost. So how can we tell what effect CO2 is having on temperatures, and if the increase in atmospheric CO2 is really making the planet warmer?
One way of measuring the effect of CO2 is by using satellites to compare how much energy is arriving from the sun, and how much is leaving the Earth. What scientists have seen over the last few decades is a gradual decrease in the amount of energy being re-radiated back into space. In the same period, the amount of energy arriving from the sun has not changed very much at all. This is the first piece of evidence: more energy is remaining in the atmosphere.
Total Earth Heat Content from Church et al. (2011)
What can keep the energy in the atmosphere? The answer is greenhouse gases. Science has known about the effect of certain gases for over a century. They ‘capture’ energy, and then emit it in random directions. The primary greenhouse gases – carbon dioxide (CO2), methane (CH4), water vapour, nitrous oxide and ozone – comprise around 1% of the air.
This tiny amount has a very powerful effect, keeping the planet 33°C (59.4°F) warmer than it would be without them. (The main components of the atmosphere – nitrogen and oxygen – are not greenhouse gases, because they are virtually unaffected by long-wave, or infrared, radiation). This is the second piece of evidence: a provable mechanism by which energy can be trapped in the atmosphere.
For our next piece of evidence, we must look at the amount of CO2 in the air. We know from bubbles of air trapped in ice cores that before the industrial revolution, the amount of CO2 in the air was approximately 280 parts per million (ppm). In June 2013, the NOAA Earth System Research Laboratory in Hawaii announced that, for the first time in thousands of years, the amount of CO2 in the air had gone up to 400ppm. That information gives us the next piece of evidence; CO2 has increased by nearly 43% in the last 150 years.
Atmospheric CO2 levels (Green is Law Dome ice core, Blue is Mauna Loa, Hawaii) and Cumulative CO2 emissions (CDIAC). While atmospheric CO2 levels are usually expressed in parts per million, here they are displayed as the amount of CO2 residing in the atmosphere in gigatonnes. CO2 emissions includes fossil fuel emissions, cement production and emissions from gas flaring.
The Smoking Gun
The final piece of evidence is ‘the smoking gun’, the proof that CO2 is causing the increases in temperature. CO2 traps energy at very specific wavelengths, while other greenhouse gases trap different wavelengths. In physics, these wavelengths can be measured using a technique called spectroscopy. Here’s an example:
Spectrum of the greenhouse radiation measured at the surface. Greenhouse effect from water vapor is filtered out, showing the contributions of other greenhouse gases (Evans 2006).
The graph shows different wavelengths of energy, measured at the Earth’s surface. Among the spikes you can see energy being radiated back to Earth by ozone (O3), methane (CH4), and nitrous oxide (N20). But the spike for CO2 on the left dwarfs all the other greenhouse gases, and tells us something very important: most of the energy being trapped in the atmosphere corresponds exactly to the wavelength of energy captured by CO2.
Summing Up
Like a detective story, first you need a victim, in this case the planet Earth: more energy is remaining in the atmosphere.
Then you need a method, and ask how the energy could be made to remain. For that, you need a provable mechanism by which energy can be trapped in the atmosphere, and greenhouse gases provide that mechanism.
Next, you need a ‘motive’. Why has this happened? Because CO2 has increased by nearly 50% in the last 150 years and the increase is from burning fossil fuels.
And finally, the smoking gun, the evidence that proves ‘whodunit’: energy being trapped in the atmosphere corresponds exactly to the wavelengths of energy captured by CO2.
The last point is what places CO2 at the scene of the crime. The investigation by science builds up empirical evidence that proves, step by step, that man-made carbon dioxide is causing the Earth to warm up.