Posts Tagged ‘scientific rigor’

Realism and Inevitability

Friday, November 18th, 2011

By David L. Brown

Those who have followed this website over the past five-plus years know that a major theme of my ranting and posturing has been in relation to the very real dangers of economic, environmental, social and technological breakdowns that are looming over our civilization. A major theme has been climate change, which along with resource depletion lies at the heart of the threat.

As reported in earlier posts, I have made the transition from pessimist to realist and now accept that there is almost certainly nothing that can be done to effectively turn the tide of change that is dooming the planet to an uncertain future. As a realist I must view things as they really are, not as we might hope they could be. It is one thing to say that global warming can be reversed and the damage prevented. Yes, it is absolutely possible, as are many other things. But will it happen? Sadly, there isn’t a snowflake’s chance in Hades that it will.

Why, you may be thinking, there he goes back into pessimist mode. Not so. Any rational examination of the facts —human nature, history, the desire of people to avoid change, and the stark economic truth that human civilization is verging on insolvency — will reveal a multitude of reasons why those difficult steps that would be required to reverse global warming will not be taken.

Simply put, we don’t want to do it, we can’t afford to do it, and the harsh truth is that it is far too late to take effective steps without creating economic and social chaos. The coming change is inevitable and unstoppable.

So, what is the alternative? Obviously, to put our collective heads in the sand like the proverbial ostriches and pretend there is nothing wrong.

It is to me a rather extraordinary fact that during the past year a few minor blunders by climate change scientists have been blown into an enormous mountain of denial. Climate change has been declared as a scam and the deniers have won the day. It’s not real, never was, all a bunch of hokum cooked up by scientists in search of research grants, fame and fortune. Let’s all put our fingers in our ears and chant “La, La, La, I Can’t Hear You!” whenever anyone mentions the true facts of global change that face us.

Now in my realist view, this is a necessary condition. If we cannot reverse climate change, why should we make the sacrifices and accept the consequences of a failed attempt? Better to let things run their course. There is another “solution,” one that is far easier for humankind to accept because it requires no effort whatsoever. Left to her own initiative, Gaia (a.k.a. Mother Nature) will take care of this problem as she always has. She has kept the planet on course for several billion years, and there is no doubt she will continue to do so for many more. When she is done, the “problem” will not exist. Like the dinosaurs, the human race will likely be extinct and our civilizations mere ruins beneath the drifting sands.

Oh how  cynical we realists can be, when the facts create the near certainty of our coming troubles. And those facts are written large in the everyday news (although ignored or twisted by the deniers as they perform their necessary function of guiding our heads into the sand). Just the other day I read that England is experiencing the warmest November in 300 years. Nowhere did I see anyone suggest that is in any way related to the possibility of global warming. I live in the Southwest, where the past decade has seen almost unrelenting drought. Climate change? Nah, just, you know, natural variations and probably caused by the Sun.

It is interesting that in addition to denying the fact of climate change, deniers go out of their way to explain there is no connection between climate change and human activity. Hmm, want it both ways, not only doesn’t it exist, but we had nothing to do with it. It reminds me of a favorite quote from Bart Simpson, who famously said “I wasn’t there, I didn’t do it, and you can’t prove anything.” Indeed, that could be the motto of the climate change deniers.

For my own part, I plan to live out my life the best way I can. Like all creatures of nature, I face my own personal extinction. What the human race does for itself as a species is up to the future to tell, and is wholly in the hands of Gaia. She will not shirk her duties and as recounted in reports of her Old Testament persona, Her will shall be done.

 

The Tragedy of Climate Change Denial

Thursday, January 20th, 2011

By David L. Brown

Well, we all know that it has been really cold in many places this winter, and that that is proof positive that global warming is a hoax. Oh, didn’t you know that? It’s true, and all you need to do to convince yourself of that is to listen to raving ignorant pols and pundits who heed the malicious maunderings of climate change deniers.

Seriously, there is something strange about people who claim that because it’s cold in the winter that the planet is not warming. Did anyone ever predict that warm winters would result? Only the most ignorant and mentally challenged idiot would make such a claim … or so it would seem. In fact, we hear that kind of clueless statement rather frequently. Does that mean there are a lot of ignorant folks around, many of them in places of authority? Well, perhaps. It’s not enough to merely observe that they are ill-informed, because they have bought into a thesis that is  supported not by science, but by disinformation and lies.

The professional deniers, many of them driven by monetary support from special interests, have been spinning and twisting the facts of climate change like a cat’s cradle. They make up facts, distort others, make ridiculous claims, take minor point out of context and blow them up as big as Mount Everest and, well, they use every trick in the propaganda handbook. And tthey get away with it because a large percentage of human beings were never taught the art of analytic reasoning, the ability to sort out the truth from the deluge of lies and misinformation. Those who have been labeled as sheep and whose understanding of logic is minuscule or nonexistent.

There’s another factor at work here, I suspect, and that is the desire not to know that the world may be in trouble due to human activities. After all, what a far more comfortable thing it is to believe that things are just hunky and also dory and that everything will always be just wonderful? It’s human nature to suppress thoughts about bad things. An example that comes to mind is the way Americans almost unanimously denied the coming of World War Two, right up until December 7, 1941. That day something happened, and the world changed.

global-warming-250x326Here we see a hint of the principle of tipping points, in that instance the Pearl Harbor attack. The denial of climate change is likely to follow a similar pattern. Until there are obvious signs of the effect of global warming, little is likely to be done about it. Nevermind that there already are significant signs of exactly those effects, such as disappearing Arctic ice, warming oceans, melting tundra. Those actual pieces of evidence are ignored and countered with anecdotes about cold winter days, snow storms, and conspiracy theories alleging that thousands of scientists are engaged in an enormous hoax led by the evil Al Gore.

What is the reality? Well, here’s one: the year 2010, despite whatever you may have heard, was probably the warmest on record. Here’s another factoid: the ten warmest years since records began being kept occurred since 1998. Those are facts, as confirmed by three separate scientific organizations. Here’s the report as seen on the BBC website (yes, you have to go beyond the borders of America to get much news about such things as “facts.”)

2010 was the warmest year since global temperature records began in 1850 – although margins of uncertainty make it a statistical tie with 1998 and 2005.

The World Meteorological Organization (WMO) concludes 2010 was 0.53C warmer than the average for the period 1961-90 – a period commonly used as a baseline.

The 10 warmest years have all occurred since 1998, it notes.

The WMO analysis combines data from three leading research agencies, and is regarded as the most authoritative.

The three records are maintained by the US-based National Aeronautics and Space Administration (Nasa) and National Climatic Data Center (NCDC), and jointly in the UK by the Hadley Centre and the University of East Anglia’s Climatic Research Unit (CRU).

They use broadly the same data from weather stations, ocean buoys and satellites across the world; but each analyses that data in different ways, leading to slight differences in their conclusions.

But those are only scientific facts, and thus much less persuasive then anecdotes about cold days in winter (it’s winter, for crying out loud, what do they expect?) and unusual snowfalls. People see what they want to see, and if on some future day they see the results of catastrophic climate tipping points it will probably be far too late to do anything about it. That’s the tragedy of denial.

Those Strange Climate Change Deniers

Thursday, November 11th, 2010

By David L. Brown

Global warming/climate change deniers are strange fellows indeed. Despite the overwhelming evidence that human-caused global warming is real and may seriously harm our planet, they continue to raise doubts. One of their arguments is that most scientists refuse to admit that global warming has been absolutely, positively proven once and for all. Well, if that’s the case, then obviously there’s a lot of room for doubt, right?

Well, not really, because you see nothing in science is absolute. A scientist can absolutely believe that any theory is correct, but the very nature of science is to question. That’s why centuries after Galileo and Newton the theory of gravity is still being examined, studied, tested and refined. It doesn’t mean that scientists deny the force of gravity, but that they constantly seek to advance knowledge about it.

Science, unlike so many other things, is not based on assumptions and “faith,” but only upon that which can be demonstrated over and over again. Just as Einstein moved our understanding beyond that of Newton, the enormous Large Hadron Collider now being ramped up at CERN has as one of its most important challenges to find something called the Higgs Boson, a proposed exotic particle that may hold the secret of gravity. Gravity is not absolutely, positively proven and as a scientific theory it never will be because that is the very nature of science.

So no responsible scientist will state that anthropogenic global warming (AGW) is absolutely, positively, 100 percent proven. It’s just not the way science works. Asking a scientist to state otherwise is like asking a husband if he has stopped beating his wife yet. There is no proper answer, because it is an inappropriate question that’s being asked.

So we can conclude that all responsible scientists believe there is a small chance that AGW is wrong. A very small minority of serious scientists think there are real problems with the theory, of greenhouse warming and that’s fine because they are acting in the true tradition of science. However, the vast majority are virtually certain it is a valid theory, and that’s where the deniers get their chance to confuse the issue. “Virtually certain” and “absolutely certain” are not the same thing. If the uncertainty is extremely small, chances are that it will be assumed to be true, and that’s where we stand with most climate scientists today. But if you pinned down an astronomer to state with absolute certainty that the Sun will rise in the East tomorrow, he or she must of necessity hedge the answer., no matter how slightly. We don’t know how, why, or whether it’s possible that event might not occur, but the uncertainty exists, even if it’s one chance in a centillion (that’s 10 to the 303rd power, or 1 with 303 zeros after it).

This reminds me of the paradoxes of the ancient Greek Zeno of Elea who jerked his fellow philosophers around by arguing that Achilles, no matter how fast he ran, could never catch a tortoise in a race. He explained that each time Achilles reached the point where the tortoise was, the tortoise would have already advanced further, leaving Achilles behind.

This kind of reasoning fits the logic often used by climate change deniers. They say that since the theory has not yet been proven, then it must be false. Their tortoise moves ahead of every argument, and since the experts are held to the rigor of the scientific process it appears to the uninitiated that the deniers have a point.

They love to remind the general public that AGW is “only a theory,” without explaining that the definitions of “theory” in science and in everyday life are quite different. A scientific theory is a model that has been rigidly tested and challenged and continues to be refined, like the theory of gravity. An everyday theory such as you might hear in a corner bar or from the mouth of a denier is just about anything you can imagine, no matter how unlikely or counter intuitive. There are those who believe the Earth is flat, and they stand by their opinion to the bitter end.

Finally, here’s some eye candy to add to the argument that deniers come from a strange place, an editorial cartoon from USA Today:

photo-thumb-500x376-57911

What indeed if we create a better world, and all for nothing. What a tragedy that would be.