Sunday, February 20, 2005

THE OLD SCARE ABOUT LEAD AGAIN

Since this guy appears not to have used a control group he is a scientist in name only and his results tell us nothing. He is just another publicity-seeker like so many "scientists" today

Lead left in paint, water, soil and elsewhere may not only be affecting children's intelligence but may cause a significant proportion of violent crime, a U.S. researcher argued Friday. He said the U.S. government needs to do more to lower lead levels in the environment and parents need to think more about where their children may be getting exposed to lead. "When environmental lead finds its way into the developing brain, it disturbs neural mechanisms responsible for regulation of impulse. That can lead to antisocial and criminal behavior," said Dr. Herbert Needleman, a professor of psychiatry and pediatrics at the University of Pittsburgh School of Medicine.

Needleman's team, using a technique called X-ray fluorescence, found very low levels of lead in the bones of children. Needleman cited several studies that associate crime with high levels of lead either in the bodies of those accused or in the environments they came from, including one that showed the average bone lead levels of 190 juvenile delinquents were higher than those of adolescents not charged with crimes. His study suggested that between 18 percent and 38 percent of delinquent crimes in the Pittsburgh area could be attributed to lead toxicity in the adolescents. Another one tested 300 delinquents and found those with higher lead levels reported more aggressive feelings or behavior disorders.

"The brain, particularly the frontal lobes, are important in the regulation of behavior," Needleman told a meeting of the American Association for the Advancement of Science. "Exposure to lead, at doses below those which bring children to medical attention, is associated with increased aggression, disturbed attention and delinquency. A meaningful strategy to reduce crime is to eliminate lead from the environment of children." Taking lead out of most gasoline has contributed to a sharp reduction in the level of lead in the blood of Americans over the past 30 years. But lead is still found in paint, some types of fuel for older vehicles, older water pipes and in the soil.

Source





EMPTY PENSION FUND RHETORIC IN CALIFORNIA

Any shares they sell will be bought by someone else

Former Vice President Al Gore joined statewide elected officials in predicting that decisions Monday by the nation's largest public pension system will boost worldwide efforts by companies to control gases believed to be contributing to global warming. The actions by the California Public Employees' Retirement System come two days before the Kyoto Protocol takes effect, under which nations not including the United States have agreed to trim so-called "greenhouse gases" generated by industry and vehicles.

Democrat Gore sharply criticized the Republican Bush administration for not endorsing the international treaty, a stance he said gives California's activities "an outsized importance" because of the market impact of the nation's most populous state. "The entire global business community has to sit up and take notice and respond" because of California's actions, Gore said. The $182 billion pension fund has $41 billion invested in foreign companies. "California ... is providing the kind of leadership that the federal government in Washington has for the time being unfortunately abdicated," Gore told reporters during a conference call arranged by Democratic state Treasurer Phil Angelides....

Angelides, a likely challenger to Gov. Arnold Schwarzenegger's re-election next year, had pushed CalPERS to adopt the new "environmental governance program" to promote better corporate environmental practices. The fund now will nudge companies to publicly disclose the financial risks they face from climate change over the coming decades, and the steps they are taking in response. "This is not just an environmental issue, but a significant issue that will begin to show up on the balance sheets of companies in which we invest," Angelides said. He cited projections that adapting to climate change will cost companies hundreds of billions of dollars over decades.

More here





ANOTHER GOOD EXPLANATION OF THE "HOCKEY STICK" NONSENSE FROM THE WSJ

"Just so we're clear, this hockey stick isn't a sports implement; it's a scientific graph. Back in the late 1990s, American geoscientist Michael Mann published a chart that purported to show average surface temperatures in the Northern Hemisphere over the past 1,000 years. The chart showed relatively minor fluctuations in temperature over the first 900 years, then a sharp and continuous rise over the past century, giving it a hockey-stick shape.

Mr. Mann's chart was both a scientific and political sensation. It contradicted a body of scientific work suggesting a warm period early in the second millennium, followed by a "Little Ice Age" starting in the 14th century. It also provided some visually arresting scientific support for the contention that fossil-fuel emissions were the cause of higher temperatures. Little wonder, then, that Mr. Mann's hockey stick appears five times in the Intergovernmental Panel on Climate Change's landmark 2001 report on global warming, which paved the way to this week's global ratification--sans the U.S., Australia and China--of the Kyoto Protocol.

Yet there were doubts about Mr. Mann's methods and analysis from the start. In 1998, Willie Soon and Sallie Baliunas of the Harvard-Smithsonian Center for Astrophysics published a paper in the journal Climate Research, arguing that there really had been a Medieval warm period. The result: Messrs. Soon and Baliunas were treated as heretics and six editors at Climate Research were made to resign.

Still, questions persisted. In 2003, Stephen McIntyre, a Toronto minerals consultant and amateur mathematician, and Ross McKitrick, an economist at Canada's University of Guelph, jointly published a critique of the hockey stick analysis. Their conclusion: Mr. Mann's work was riddled with "collation errors, unjustifiable truncations of extrapolation of source data, obsolete data, geographical location errors, incorrect calculations of principal components, and other quality control defects." Once these were corrected, the Medieval warm period showed up again in the data.

This should have produced a healthy scientific debate. Instead, as the Journal's Antonio Regalado reported Monday, Mr. Mann tried to shut down debate by refusing to disclose the mathematical algorithm by which he arrived at his conclusions. All the same, Mr. Mann was forced to publish a retraction of some of his initial data, and doubts about his statistical methods have since grown. Statistician Francis Zwiers of Environment Canada (a government agency) notes that Mr. Mann's method "preferentially produces hockey sticks when there are none in the data." Other reputable scientists such as Berkeley's Richard Muller and Hans von Storch of Germany's GKSS Center essentially agree.

We realize this may all seem like so much academic nonsense. Yet if there really was a Medieval warm period (we draw no conclusions), it would cast some doubt on the contention that our SUVs and air conditioners, rather than natural causes, are to blame for apparent global warming.

There is also the not-so-small matter of the politicization of science: If climate scientists feel their careers might be put at risk by questioning some orthodoxy, the inevitable result will be bad science. It says something that it took two non-climate scientists to bring Mr. Mann's errors to light.

But the important point is this: The world is being lobbied to place a huge economic bet--as much as $150 billion a year--on the notion that man-made global warming is real. Businesses are gearing up, at considerable cost, to deal with a new regulatory environment; complex carbon-trading schemes are in the making. Shouldn't everyone look very carefully, and honestly, at the science before we jump off this particular cliff?"





How Global Warming Research is Creating a Climate of Fear


Now that the Kyoto treaty is formally in effect, there has been an avalanche of articles by people who feel it is time to speak up and nail the nonsense for what it is. Below are just a few excerpts from a BIG article by two German experts in the widely-circulated German newsmagazine Spiegel ("Mirror").

The polar ice caps are disappearing! The Gulf Stream is soon to reverse! Right? Well, maybe. But calling such apocalyptic theories into question is becoming more and more difficult for skeptical scientists. Meanwhile, the public is getting tired of being fed a diet of fear......

The public statements made by well-known German climate researchers create the impression that the scientific fundamentals of the climate problems have essentially been solved. They claim that the scientific community has already established the conditions for taking concerted action. In this case, concerted action means reducing greenhouse gases as much as possible.

This is a view that in fact does not correspond to the situation in the scientific community. That's because a significant number of climatologists are by no means convinced that the underlying issues have been adequately addressed. Last year, for example, a survey of climate researchers from all over the world revealed that a quarter of respondents still question whether human activity is responsible for the most recent climatic changes.

But most researchers do believe that a shift in global climate caused by human activity is already occurring, and that it will accelerate in the future and become even more apparent. Higher temperatures and higher sea levels will accompany this shift. Scientists predict that in the more distant future, that is, in about 100 years, a substantial rise in greenhouse gas levels in the Earth's atmosphere will lead to more severe precipitation events in the northern hemisphere; some regions could experience more severe and others weaker storms.

But there are always scientists for whom, in keeping with the maxims of the alarmists in Crichton's book, these scenarios are insufficiently dramatic. For this reason, they are increasingly drawing connections between current extreme weather events and the climate shift caused by human activity. They do, it is true, tend to use cautious language in drawing such parallels and interviews become exercises in understatement. When asked such questions as: "Are high water levels on the Elbe River, the hurricanes in Florida and this year's mild winter evidence of climate catastrophe?" they respond that while this cannot be proven scientifically, some believe it to be the case. None of these statements is incorrect, but when combined they lead to the obvious conclusion that of course these weather events are proof of climate catastrophe, a statement so explicit that no one would venture to volunteer it.


The pattern is always the same. The significance of individual events is turned into material suitable for media presentation and is then cleverly dramatized. When the outlook for the future is discussed, the scenario that predicts the highest growth rates for greenhouse gas emissions -- which, of course, comes with the most dramatic climatic consequences -- is always selected from among all possible scenarios. Those predicting significantly smaller increases in greenhouse gas levels are not mentioned

Who benefits from this? The assumption is made that fear compels people to act, but we forget that it also produces a rather short-lived reaction. Climate change, on the other hand, requires a long-term response. The impact on the public may be "better" in the short term, thereby also positively affecting reputations and research funding. But to ensure that the entire system continues to function in the long term, each new claim about the future of our climate and of the planet must be just a little more dramatic than the last. It's difficult to attract the public's attention to the climate-related extinction of animal species following reports on apocalyptic heat waves. The only kind of news that can trump these kinds of reports would be something on the order of a reversal of the Gulf Stream.

All of this leads to a spiral of exaggeration. Each individual step in this process may seem harmless, but on the whole, the knowledge imparted to the public about climate, climatic fluctuations, climate shift and climatic effects is dramatically distorted....

In an article we published in the professional journal "Science" in October 2004, we were able to demonstrate that the underlying methodology that led to this hockey stick curve is flawed. Our intention was to turn back the spiral of exaggerations somewhat, but without calling the core statement into question, which is that human-induced climate change does exist. Prominent members of the climate research community did not respond to the article by engaging use in a dispute over the facts. Instead, they were concerned that the worthy cause of climate protection had been harmed.

Other scientists are succumbing to a form of fanaticism almost reminiscent of the McCarthy era. In their minds, criticism of methodology is nothing but the monstrous product of "conservative think-tanks and misinformation campaigns by the oil and coal lobby," which they believe is their duty to expose. In contrast, dramatization of climate shift is defended as being useful from the standpoint of educating the public.

The principle that drives other branches of science should be equally applicable to climate research: dissent drives continued development, and differences of opinion are not unfortunate matters to be kept within the community. Silencing dissent and uncertainty for the benefit of a politically worthy cause reduces credibility, because the public is more well-informed than generally assumed. In the long term, the supposedly useful dramatizations achieve exactly the opposite of what they are intended to achieve. If this happens, both science and society will have missed an opportunity.

More here

***************************************

Many people would like to be kind to others so Leftists exploit that with their nonsense about equality. Most people want a clean, green environment so Greenies exploit that by inventing all sorts of far-fetched threats to the environment. But for both, the real motive is to promote themselves as wiser and better than everyone else, truth regardless.

Comments? Email me here. My Home Page is here or here. For times when blogger.com is playing up, there are mirrors of this site here and here.

*****************************************

No comments: