I am not sure when this was written but the content makes it fairly recent. This is an excellent article that lists the reasons for the weakness of the pro warming argument. There is little that can be added except to suggest that one takes the time to read through it and enjoy. It is well written.

It is remarked that scientists have been far too quick to accept work in other fields quite blindly without effectively doing their own homework. The problem has been their willingness to second such work. So science becomes public relations.

This is a good antidote.

Global Warming - Nonsense!

http://globalwarming-nonsense.com/

What is global warming? Put simply, it is the belief that humans have caused the average temperatures on earth to increase by the adding of carbon dioxide into the atmosphere by the burning of carbon-based fuels like petroleum, wood and coal.

The true facts, however, do not support the idea of man-made global warming! Natural processes totally dispel anything that man can accomplish - a small rainstorm produces more energy than a large nuclear explosive releases and the lowest category of hurricane produces more energy than all of the nuclear weapons ever created by man.

The eruption of Mount St Helens put more pollutants into the atmosphere than the entire history of man kind. Think about it. Most geologists and now, most scientists around the world, do not accept the idea that global warming resulting from human activities is a viable theory - because most have an appreciation for the kind of power inherent in natural systems created by mother earth.

Conversely, most biologists do accept the idea of human created global warming and quote scientists in other fields, without ever understanding those fields sufficiently enough to make a logical assessment as to whether the studies were reasonable or even logical in their methods and claims. They simply take it on faith that the scientists touting global warming are correct in their methods and assumptions.

Geologists point to a period of much warmer weather prior to the minor Ice Age of 1350-1850 A.D., in which it was possible to farm in most of Scandinavia, Canada and even in Greenland (and why was it called Greenland? Duhh!). It is now too cold to farm in Greenland, northern Canada and all but the southern tip of Scandinavia. Historians speak of times in the past when the planet was much warmer than now, such as prior to the fifth century A.D. or the 11th century B.C., when northern Europe was similar to the Mediterranean in overall climatic conditions.

There is an erroneous assumption flying around these days that CO2 is some how an important forcing factor on the global climate, when every last piece of empirical evidence shows otherwise. Al Gore, and I'm positive he's not the only one, has a graph with 500,000 years of ice core samples showing their chronological temperature and respective CO2 levels. There is a nice correlation, and the two are definitely linked, but he lies and pretends the relationship is the other way around. In every single time period it is clear that CO2 levels always trail temperature changes by 500-800 years.

Our climate is changing, just as it has always done, and always will. In fact, the only constant about our climate is that it changes, which makes you realize the term "climate change" is at best meaningless, and at worst intentionally ambiguous. It feels silly that I need to say this, but clearly it has to be done. The main determinant of our climate is not some gas, which comprises 0.038% of the atmosphere, but the Sun, the planet's orbital eccentricities and axial wobble, cosmic ray flux, and other celestial factors. Greenhouse gases play an important role, but a passive one. It should not come as a surprise that our entire solar system has been warming for the last quarter century, or that the most accurate weather forecasts come from algorithms that concentrate on solar fluctuations and cosmic rays.

Scientists worldwide have now jumped on the global warming bandwagon. It’s become a fad, a trend, a wave of enthusiasm and the scientists are going along with the fad to simply get lucrative research grants and the media spotlight. The various activist groups are going along with it because it supports their socialist agenda of wiping out industry and personal freedoms. Global warming has even hit the big screen with “An Inconvenient Truth,” a documentary on Al Gore's campaign to make the issue of global warming a recognized problem worldwide. For Al Gore the movie has been a $100 million earnings windfall, international recognition and has stirred a global debate which will rage on for the next few decades.

Let's talk about Earth's historical and current temperatures. Global warming alarmists would have us believe that we are now seeing a global temperature at a height not achieved for a very long time. This is simply not factual. We have seen temperatures even within the last 1,000 years higher than our present, which is not even a blip in Earth’s history.

Possibly the most infamous display of this nonsense is the "hockey-stick graph":

Although Mann et al compiled it in 1998, it was not until 2003 that the first independent person was able to look at the algorithms used in the graph, because they refused to release it. It turned out that, even using completely randomized data, one could create a graph that looked exactly the same because the algorithms had a bias to exaggerate the last century! Not only that, but it should be obvious from the fact that the Vikings were settling and farming Greenland from the 9th to the 13th century, in places now covered with permafrost and ice, that this graph is just total nonsense! Of course, this was not before the graph had been used as the backdrop for the 2001 UN Intergovernmental Panel on Climate Change. You would have thought that was a pretty good indication of their scientific integrity, but I promise you it gets much, much worse. Perhaps even more interesting than the inability of the IPCC to verify its data before using it at all, let alone as a centerpiece, or subsequently apologizing after it became public how fraudulent the graph was, is the fact that environmentalists to this day still use this graph to illustrate their points. Al Gore's entire sensationalist "documentary" (boy is that charitable) revolves around this widely discredited graph and others like it. It should honestly occur to us that anyone who continues to use this graph to support their arguments has little interest in actually presenting reality. The IPCC used to publish the real temperature data on the past millennium in its earlier reports, but not anymore because it’s an inconvenient truth to their agenda.

What about recent temperature rises in the last century? Surely it is impossible to deny that we are seeing warming now at an unusual and alarming rate? Well, you'd be surprised. Measuring Earth's average temperature to any interesting degree of precision is a considerably complex task. Even defining exactly what the absolute surface air temperature means is challenging, giving plenty of room for pursuing an agenda. The vast majority of graphs you've seen on this subject will have come from data using land-based measurements, as these allow the graph to continue back beyond the 1970s. There are numerous problems with land-based measurements, ranging from the fact that land only accounts for 30% of the planet's surface, to urban heat islands and other effects from changes in local land use. Dr. Dick Morgan, former advisor to the World Meteorological Organization and climatology researcher at University of Exeter, U.K. says, [7] "Had the IPCC used the standard parameter for climate change (the 30 year average) and used an equal area projection, instead of the Mercator (the 2D representation of a sphere which exaggerates the polar area) warming and cooling would have been almost in balance." However, in the last 30 years we've had consistent measurements from weather balloons and satellites, which produce much more reliable results for obvious reasons, and what we've observed from this equipment is a only a very slight warming trend. This data should be puzzling to the people who built the climate models for the IPCC, because they actually predicted the reverse - the troposphere should be warming faster than the surface if the current warming is due to the 'greenhouse effect'.

While we're on the subject of climate models, I'd like to say a few things. Climate models are in their infancy. They are highly dependent on the assumptions that go into them, and there are a lot of them. In fact, there are so many assumptions and parameters that it is genuinely possible to create any relationship you like. Climate models are made fun by the inclusion of "positive feed-backs" (multiplier effects) so that a small temperature increment expected from increasing atmospheric carbon dioxide invokes large increases in water vapor, which seem to produce exponential rather than logarithmic temperature response to CO2. It seems to have become somewhat of a game to see who can add in the most creative feedback mechanisms to produce the scariest warming scenarios from their models, but there remains no evidence that the planet behaves in such a manner. Not only is it highly debatable as to whether water vapour acts as a positive or negative feed-back, but what has been observed in laboratories is that CO2 actually has a logarithmic relationship with temperature. The IPCC literally made its entire conclusion from the results of 6 models. Three of these were extreme scenarios with numbers like a global population of 15 billion by 2100 (almost all demographers expect our population to level at 9 billion), and even the 3 that were ‘moderate’ were predicting things like the annual rainfall in Ireland should be equivalent to the Sahara’s. Today. The unreliable nature of these models probably helps to explain why the IPCC cut almost of all its predictions by a third from 2001 to its most recent report. They also failed to predict the fall in methane levels we've seen since 2002, and their predictions for sea temperatures have been halved due to "incorrectly calibrated instrumentation". As the saying in computer programming goes; "Garbage in, garbage out".

There is an erroneous assumption flying around these days that CO2 is some how an important forcing factor on the global climate, when every last piece of empirical evidence shows otherwise. Al Gore, and I'm positive he's not the only one, has a graph with 500,000 years of ice core samples showing their chronological temperature and respective CO2 levels. There is a nice correlation, and the two are definitely linked, but he lies and pretends the relationship is the other way around. In every single time period it is clear that CO2 levels always trail temperature changes by 500-800 years. Professor Bob Carter of the Marine Geophysical Laboratory at James Cook University, in Australia had the following to say about this; [8] "Al Gore's circumstantial arguments are so weak, that they are pathetic. The man is an embarrassment to US science and its many fine practitioners, a lot of whom know (but feel unable to state publicly) that his propaganda crusade is mostly based on junk science." The historical evidence consistently shows temperature is independent of CO2. In fact, 450 million years ago when we were in the depths of the coldest period the Earth has had in half a billion years, CO2 levels were 10 times above today's! Even using the last century as evidence for a dependent relationship is meaningless. 65% of the warming this century occurred in the first three decades, and then, while CO2 levels continued to rise, temperatures fell for four decades in a row.

Another misconception that seems to be rife at the moment is that some how CO2 is a pollutant. I'm sure that you've all learned that this gas is actually fundamental to our existence, but this seems to be as good a time as any to re-cap. Estimates vary, but somewhere around 15% seems to be the common number cited for the increase in global food crop yields due to increased carbon dioxide since 1950. This increase has both helped avoid a Malthusian disaster and preserved or returned enormous tracts of marginal land as wildlife habitat that would otherwise have had to be put under the plow in an attempt to feed the growing global population. Commercial growers deliberately generate CO2 and increase its levels in agricultural greenhouses to between 700ppmv and 1,000ppmv to increase productivity and improve the water efficiency of food crops far beyond those in the somewhat carbon-starved open atmosphere. CO2 feeds the forests, grows more usable lumber in timber lots meaning there is less pressure to cut old growth or push into "natural" wildlife habitat, makes plants more water efficient helping to beat back the encroaching deserts in Africa and Asia and generally increases bio-productivity. If it's "pollution," then it's pollution the natural world exploits extremely well and to great profit. What should be obvious is that increases in CO2 directly increase the vitality of the bio-world. It is no wonder that the Sahara has shrunk 300,000 km^2 in the last couple decades, or that the dinosaurs managed to find the sustenance to survive, despite their size, in an era with 5 times our current CO2 levels.

The last myth I'd like to debunk is the idea that global warming is necessarily a bad thing, regardless of whether we have any significant control over it, or that historically warm periods have been the most prosperous for humans. By far the most hyped consequences are increasing intensities of weather storms, and rising sea levels. Global storm intensities are dominated by the temperature difference between the equator and the poles, and it really is that simple. Even by the IPCC's own admission, in manipulating the area of the poles using the Mercator system to distort the global temperature, the poles must be warming at a rate faster than the equator and this subsequently leads to gentler storms, despite the media explicitly or implicitly making an attempt to blame every last weather anomaly on "climate change". Ah yes, you say, but that would imply that we are in danger of rising sea levels because the warming would melt the ice at the poles. Well, consider this. Since the last ice age 18,000 years ago the global sea level has risen by 130 meters, and is still doing so at a current rate of around 20cm per century, which is dwarfed by local tectonic movements. This will obviously displace people, but it will pale in insignificance when compared to the migrations over the next century caused by other factors such as geographical changes in important resources, fresh water locations, industrialization, etc. Dramatic pictures of breaking seasonal ice is just patent propaganda, the reality is that Antarctica’s ice mass has now been growing for the last 30 years against a 6,000 year trend of melting, and it contains over 90% of the world’s land ice (sea ice, by Archimedes’s principle, does not affect sea levels). Dr. Wibjorn Karlen, emeritus professor, Dept. of Physical Geography and Quaternary Geology, Stockholm University, Sweden, admits, [9] "Some small areas in the Antarctic Peninsula have broken up recently, just like it has done back in time. The temperature in this part of Antarctica has increased recently, probably because of a small change in the position of the low pressure systems."

Editor: Bert Tassoni