here something from 1975 when we knew it all then to
"The Cooling World" - by Peter Gwynne
April 28, 1975 Newsweek
There are ominous signs that the Earth’s weather patterns have begun to change dramatically and that these changes may portend a drastic decline in food production – with serious political implications for just about every nation on Earth. The drop in food output could begin quite soon, perhaps only 10 years from now.
The regions destined to feel its impact are the great wheat-producing lands of Canada and the U.S.S.R. in the North, along with a number of marginally self-sufficient tropical areas – parts of India, Pakistan, Bangladesh, Indochina and Indonesia – where the growing season is dependent upon the rains brought by the monsoon.
The evidence in support of these predictions has now begun to accumulate so massively that meteorologists are hard-pressed to keep up with it. In England, farmers have seen their growing season decline by about two weeks since 1950, with a resultant overall loss in grain production estimated at up to 100,000 tons annually. During the same time, the average temperature around the equator has risen by a fraction of a degree – a fraction that in some areas can mean drought and desolation. Last April, in the most devastating outbreak of tornadoes ever recorded, 148 twisters killed more than 300 people and caused half a billion dollars' worth of damage in 13 U.S. states.
To scientists, these seemingly disparate incidents represent the advance signs of fundamental changes in the world's weather. The central fact is that after three quarters of a century of extraordinarily mild conditions, the earth's climate seems to be cooling down. Meteorologists disagree about the cause and extent of the cooling trend, as well as over its specific impact on local weather conditions. But they are almost unanimous in the view that the trend will reduce agricultural productivity for the rest of the century. If the climatic change is as profound as some of the pessimists fear, the resulting famines could be catastrophic. “A major climatic change would force economic and social adjustments on a worldwide scale,†warns a recent report by the National Academy of Sciences, “because the global patterns of food production and population that have evolved are implicitly dependent on the climate of the present century.â€
A survey completed last year by Dr. Murray Mitchell of the National Oceanic and Atmospheric Administration reveals a drop of half a degree in average ground temperatures in the Northern Hemisphere between 1945 and 1968. According to George Kukla of Columbia University, satellite photos indicated a sudden, large increase in Northern Hemisphere snow cover in the winter of 1971-72. And a study released last month by two NOAA scientists notes that the amount of sunshine reaching the ground in the continental U.S. diminished by 1.3% between 1964 and 1972.
To the layman, the relatively small changes in temperature and sunshine can be highly misleading. Reid Bryson of the University of Wisconsin points out that the Earth’s average temperature during the great Ice Ages was only about seven degrees lower than during its warmest eras – and that the present decline has taken the planet about a sixth of the way toward the Ice Age average.
Others regard the cooling as a reversion to the “little ice age†conditions that brought bitter winters to much of Europe and northern America between 1600 and 1900 – years when the Thames used to freeze so solidly that Londoners roasted oxen on the ice and when iceboats sailed the Hudson River almost as far south as New York City.
Just what causes the onset of major and minor ice ages remains a mystery. “Our knowledge of the mechanisms of climatic change is at least as fragmentary as our data,†concedes the National Academy of Sciences report. “Not only are the basic scientific questions largely unanswered, but in many cases we do not yet know enough to pose the key questions.â€
Meteorologists think that they can forecast the short-term results of the return to the norm of the last century. They begin by noting the slight drop in overall temperature that produces large numbers of pressure centers in the upper atmosphere. These break up the smooth flow of westerly winds over temperate areas. The stagnant air produced in this way causes an increase in extremes of local weather such as droughts, floods, extended dry spells, long freezes, delayed monsoons and even local temperature increases – all of which have a direct impact on food supplies. “The world’s food-producing system,†warns Dr. James D. McQuigg of NOAA’s Center for Climatic and Environmental Assessment, “is much more sensitive to the weather variable than it was even five years ago.†Furthermore, the growth of world population and creation of new national boundaries make it impossible for starving peoples to migrate from their devastated fields, as they did during past famines.
Climatologists are pessimistic that political leaders will take any positive action to compensate for the climatic change, or even to allay its effects. They concede that some of the more spectacular solutions proposed, such as melting the Arctic ice cap by covering it with black soot or diverting arctic rivers, might create problems far greater than those they solve. But the scientists see few signs that government leaders anywhere are even prepared to take the simple measures of stockpiling food or of introducing the variables of climatic uncertainty into economic projections of future food supplies. The longer the planners delay, the more difficult will they find it to cope with climatic change once the results become grim reality.
2007-02-16 01:45:19
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answer #1
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answered by Larry M 3
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Yep global warming is bad but realistic estimates are that the sea level will only rise about 20 inches by the year 2100. Even the worst case estimates by scientists and not hollywood are not much worse in terms of sea level change.
But even 20 inches will cause a lot of problems with some cities near the coast.
The need to fight global warming is not served by outhright alarmist lies and unrealistic exagerating some possilbe resutls. The real forcasts are bad enough.
They include disruption of agriculture as weather patterns change, and severe damage to wildlife that are not able to move and adapt as rapidly as humans. That should be reason enough to find a solution to GW (allong with a small rise in sea level).
Talk about needing to swim is so obviouslhy wrong to most scientists and non paranoid public that it makes GW appear to be crazy paranoia. GW is not a lie but unfortunately some of the biggest untruths are told by those who believe in global warming and not those who deny it. Such exagerations give fuel to the deniers of GW and will prevent our country and world from agreeing to stop the problem.
The public will doubt the crediblity of the whole issue if it is supported by both lies and truths if the lies are obvious. Dont lie and exagerate on this issue it is too important.
A sea level rise of 1.8 mm a year is not (alone) worth the effort to fight GW. There are plenty of other good reasons. At 1.8 mm a year most people who live at the coast would barely notice the change in their lifetime.
GW can be stopped if the world believes it is a problem. Technologies and ideas exist that could do it, but they are expensive and the people will not willingly spend the money if what is being sold to them as the problem is full of half truths and exagerations.
2007-02-16 02:30:57
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answer #2
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answered by Dr Fred 3
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If all the ice in the world melts, there will still be plenty of dry land.
There have been periods in history where the CO2 levels were substantially higher than they are today. Those periods were hot, and sea levels were hundreds of feet higher than today, but they did not come near to wiping out all life on earth.
It nevertheless is prudent to stop burning fossil fuels. We must do so in a few hundred years anyway, because they will run out. We can spare life on Earth a lot of grief if we address this problem sooner rather than later.
The anti-global warming people are really becoming propagandists. They are willing to distort the science for ideological reasons. That is really bad, and they should try to approach the data and the theory without prejudice.
2007-02-16 02:02:22
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answer #3
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answered by cosmo 7
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Right now we are considered in an "ice age" Earth Warming depends on many factors such as the main factor pollutants. Deforestation, pollution, aerosols, desertification, el nino, el nina, Malenovich cycles, the earths axis all play major roles in the waming of this planet. However due to major pollution since the mid 1800's the earths temperature has increased by several degrees. In our lifetime we will not see MAJOR increases in temperature, but in the next hundred years your grandkids will see a major change in climate, temperature, and ozone layer. Skin cancer will be more relavent in people not just white people but skin colors from white to black. Ice burgs will melt, glaciers, and alpine frost will over flow down valleys, creating more mudslides, and the earth will be a lot more humid. You can expect more hurricanes, tornados, violent sea storms, more desert, and changing wind patterns. However, the earth is on a 20 year carbon delay, meaning we are only seeing the destruction to our atmosphere from 20 years ago. If we want to see the full effect what pollution has done up into the present day we would have to not pollute for 20 years to see its full effects. If we can use solar, hydro, and bio power, stop overpopulating, and consuming forests, we can drastically cut out CO2 emmissions and further slow down this process of global warming, hopfully one day reverse it.
2007-02-16 01:41:55
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answer #4
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answered by TheDiciple 2
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um.. yeah, you should stock up on O2 tanks right now... you should only be concerned with global warming if you plan on living another 1000 years. Climactic change of that variety takes hundreds or thousands of years. Dont be so paranoid. And STOP listening to the liberal media- they are using global warming as a political platform. It's way more political than scientific.
2007-02-16 01:37:54
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answer #5
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answered by dreamoutloud2 3
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The CO2 problem has already been fix with plants and photosynthesis . As the plants take in more and more CO2 they make food from it and grow bigger which means they can handle more CO2. Let the plants grow and plant more, and if the plants get a little behind they will grow to the challenge.
2007-02-16 02:50:36
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answer #6
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answered by JOHNNIE B 7
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You can do whatever you like.
I will sit back and continue to watch the panic mongers make fools out of themselves.
2007-02-16 02:21:18
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answer #7
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answered by fucose_man 5
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Global Warming is not due to human contribution of Carbon Dioxide
Global Warming: The Cold, Hard Facts?
By Timothy Ball
Monday, February 5, 2007
Global Warming, as we think we know it, doesn't exist. And I am not the only one trying to make people open up their eyes and see the truth. But few listen, despite the fact that I was one of the first Canadian Ph.Ds. in Climatology and I have an extensive background in climatology, especially the reconstruction of past climates and the impact of climate change on human history and the human condition. Few listen, even though I have a Ph.D, (Doctor of Science) from the University of London, England and was a climatology professor at the University of Winnipeg. For some reason (actually for many), the World is not listening. Here is why.
What would happen if tomorrow we were told that, after all, the Earth is flat? It would probably be the most important piece of news in the media and would generate a lot of debate. So why is it that when scientists who have studied the Global Warming phenomenon for years say that humans are not the cause nobody listens? Why does no one acknowledge that the Emperor has no clothes on?
Believe it or not, Global Warming is not due to human contribution of Carbon Dioxide (CO2). This in fact is the greatest deception in the history of science. We are wasting time, energy and trillions of dollars while creating unnecessary fear and consternation over an issue with no scientific justification. For example, Environment Canada brags about spending $3.7 billion in the last five years dealing with climate change almost all on propaganda trying to defend an indefensible scientific position while at the same time closing weather stations and failing to meet legislated pollution targets.
No sensible person seeks conflict, especially with governments, but if we don't pursue the truth, we are lost as individuals and as a society. That is why I insist on saying that there is no evidence that we are, or could ever cause global climate change. And, recently, Yuri A. Izrael, Vice President of the United Nations sponsored Intergovernmental Panel on Climate Change (IPCC) confirmed this statement. So how has the world come to believe that something is wrong?
Maybe for the same reason we believed, 30 years ago, that global cooling was the biggest threat: a matter of faith. "It is a cold fact: the Global Cooling presents humankind with the most important social, political, and adaptive challenge we have had to deal with for ten thousand years. Your stake in the decisions we make concerning it is of ultimate importance; the survival of ourselves, our children, our species," wrote Lowell Ponte in 1976.
I was as opposed to the threats of impending doom global cooling engendered as I am to the threats made about Global Warming. Let me stress I am not denying the phenomenon has occurred. The world has warmed since 1680, the nadir of a cool period called the Little Ice Age (LIA) that has generally continued to the present. These climate changes are well within natural variability and explained quite easily by changes in the sun. But there is nothing unusual going on.
Since I obtained my doctorate in climatology from the University of London, Queen Mary College, England my career has spanned two climate cycles. Temperatures declined from 1940 to 1980 and in the early 1970's global cooling became the consensus. This proves that consensus is not a scientific fact. By the 1990's temperatures appeared to have reversed and Global Warming became the consensus. It appears I'll witness another cycle before retiring, as the major mechanisms and the global temperature trends now indicate a cooling.
No doubt passive acceptance yields less stress, fewer personal attacks and makes career progress easier. What I have experienced in my personal life during the last years makes me understand why most people choose not to speak out; job security and fear of reprisals. Even in University, where free speech and challenge to prevailing wisdoms are supposedly encouraged, academics remain silent.
I once received a three page letter that my lawyer defined as libellous, from an academic colleague, saying I had no right to say what I was saying, especially in public lectures. Sadly, my experience is that universities are the most dogmatic and oppressive places in our society. This becomes progressively worse as they receive more and more funding from governments that demand a particular viewpoint.
In another instance, I was accused by Canadian environmentalist David Suzuki of being paid by oil companies. That is a lie. Apparently he thinks if the fossil fuel companies pay you have an agenda. So if Greenpeace, Sierra Club or governments pay there is no agenda and only truth and enlightenment?
Personal attacks are difficult and shouldn't occur in a debate in a civilized society. I can only consider them from what they imply. They usually indicate a person or group is losing the debate. In this case, they also indicate how political the entire Global Warming debate has become. Both underline the lack of or even contradictory nature of the evidence.
I am not alone in this journey against the prevalent myth. Several well-known names have also raised their voices. Michael Crichton, the scientist, writer and filmmaker is one of them. In his latest book, "State of Fear" he takes time to explain, often in surprising detail, the flawed science behind Global Warming and other imagined environmental crises.
Another cry in the wildenerness is Richard Lindzen's. He is an atmospheric physicist and a professor of meteorology at MIT, renowned for his research in dynamic meteorology - especially atmospheric waves. He is also a member of the National Academy of Sciences and has held positions at the University of Chicago, Harvard University and MIT. Linzen frequently speaks out against the notion that significant Global Warming is caused by humans. Yet nobody seems to listen.
I think it may be because most people don't understand the scientific method which Thomas Kuhn so skilfully and briefly set out in his book "The Structure of Scientific Revolutions." A scientist makes certain assumptions and then produces a theory which is only as valid as the assumptions. The theory of Global Warming assumes that CO2 is an atmospheric greenhouse gas and as it increases temperatures rise. It was then theorized that since humans were producing more CO2 than before, the temperature would inevitably rise. The theory was accepted before testing had started, and effectively became a law.
As Lindzen said many years ago: "the consensus was reached before the research had even begun." Now, any scientist who dares to question the prevailing wisdom is marginalized and called a sceptic, when in fact they are simply being good scientists. This has reached frightening levels with these scientists now being called climate change denier with all the holocaust connotations of that word. The normal scientific method is effectively being thwarted.
Meanwhile, politicians are being listened to, even though most of them have no knowledge or understanding of science, especially the science of climate and climate change. Hence, they are in no position to question a policy on climate change when it threatens the entire planet. Moreover, using fear and creating hysteria makes it very difficult to make calm rational decisions about issues needing attention.
Until you have challenged the prevailing wisdom you have no idea how nasty people can be. Until you have re-examined any issue in an attempt to find out all the information, you cannot know how much misinformation exists in the supposed age of information.
I was greatly influenced several years ago by Aaron Wildavsky's book "Yes, but is it true?" The author taught political science at a New York University and realized how science was being influenced by and apparently misused by politics. He gave his graduate students an assignment to pursue the science behind a policy generated by a highly publicised environmental concern. To his and their surprise they found there was little scientific evidence, consensus and justification for the policy. You only realize the extent to which Wildavsky's findings occur when you ask the question he posed. Wildavsky's students did it in the safety of academia and with the excuse that it was an assignment. I have learned it is a difficult question to ask in the real world, however I firmly believe it is the most important question to ask if we are to advance in the right direction.
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Dr. Tim Ball, Chairman of the Natural Resources Stewardship Project, is a Victoria-based environmental consultant and former climatology professor at the University of Winnipeg. He can be reached at letters@canadafreepress.com
Other articles by Tim Ball
2007-02-16 05:24:52
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answer #8
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answered by Spud55 5
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