Cork Skeptics

Promoting Reason, Science & Critical Thinking in Cork City & Beyond


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Climate Change with John Gibbons

Our next talk features environmental writer and commentator John Gibbons who will discuss the global climate change crisis, with a focus on the role Ireland has played.

About The Talk: An unprecedented global crisis involving biodiversity collapse, water and soil depletion, planetary climate destabilisation and pollution of land, sea and atmosphere threatens to reverse the dramatic gains in wealth, health and well being that humanity has enjoyed over the past two centuries. We live in dangerous times.

But what is truly extraordinary is how this existential crisis has been studiously ignored by our politicians, business and social leaders as well as our media. How this has come to pass is itself one of the most extraordinary stories of our times. In this talk, John Gibbons will attempt to shine some light into the dark corners of the greatest communications failure in human history.
John Gibbons

John Gibbons

About the Speaker: John Gibbons is a specialist environmental writer and commentator with a special focus on Climate Change. He wrote a weekly column in the Irish Times on climate change for nearly three years, and is now a regular contributor on TV, radio and in print on environment, energy and climate-related issues. He maintains a blog at ThinkorSwim.ie

A graduate of UCC and DCU, he is also MD of healthcare publishing and communications organisation MedMedia Group which he co-founded 24 years ago. Married, he has two daughters in primary school and lives in Dun Laoghaire, Co. Dublin.


This talk begins at 8:00pm on Friday 17 April. The venue is Blackrock Castle Observatory, Cork.

It is free to attend and all are welcome—we look forward to seeing you there!

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Should we be sceptical about Global Warming?

Scepticism, on the face of it, is all about not taking claims at face value. Sceptics are expected to dig deeper, to ask questions and challenge assertions. What then should we say about one of the great questions of the current times, namely whether the burning of fossil fuels is causing an alarming increase in world temperatures and incidences of severe weather; trends that may lead to catastrophic changes around the world if we do nothing about it?

A large section of society has taken the view that global warming is not happening, or if it is, it’s a result of natural cycles only, or if there is a human influence, it’s only for the good – the warming we will see will be a good thing for us all. These people describe themselves as global warming sceptics. They hear people making alarming claims and they react by demanding cast-iron evidence. If such evidence is not forthcoming, they take the view that the claims are bunk and that global warming is a myth.

But are they correct in their assertions? Is this true scepticism or a warped version of it?

There is a phenomenon known as hyper-scepticism or denialism, whereby no matter how much evidence is presented to support a claim, it is never enough. Denialism is apparent in the claims by some people that men never went to the Moon or that evolution doesn’t exist. It is apparent whenever evidence collides with ideology, in somewhat the same way as smokers might refute negative stories as a way of persisting with their habit.

The trouble with global warming scepticism is that the claims have been validated by the vast majority of scientists whose job it is to research these claims and understand their impacts. Solid links were made between atmospheric carbon dioxide and warming in the 19th Century. Over the past century and through thousands of peer-reviewed studies, the evidence has kept building up. Atmospheric CO2 is at its highest level in 3 million years. Temperatures have been rising and not in a way that can be explained by natural phenomena, such as sunspots and volcanic activity. Direct links have been established between atmospheric carbon and fossil fuels. The data for these conclusions come from multiple sources including temperature records, atmospheric readings, tree-rings, ice-cores and deep sea sediments. The net effect is an overwhelming consensus among relevant scientists that global warming is real, that it is man-made and that it bodes badly for the future, if we continue to leave CO2 unchecked.

Yet thousands of self-proclaimed “experts” (who are nothing of the sort) deny all this. Seemingly, they know better. To them, the climate researchers are either badly deluded or part of some huge conspiracy to twist the evidence to their position. It’s a bizarre line-up of science versus ideology, spurred on by vested interests who believe they have a lot to lose if the worldwide demand for fossil fuels is reduced. While getting short shrift from the scientific community at large, the deniers have been successful in swaying public opinion. Many right wing political parties have made climate change denial a core part of their election platforms as they seek to attract and retain voters who parrot these views.

In the end, the deniers have launched a war against science, rife with misinformation and media strategies similar to those used by tobacco companies to deny any links to cancer.  Every day, climate scientists are faced with having to address the same canards no matter how many times they have been knocked down in the past. Attempts have been made to sabotage and misrepresent their work. Publicly available climate change data is selectively misused in order to counteract the accepted science.

On the face of it, many of the big oil companies such as BP, Shell and even Exxon accept man-made climate change and its implications. However, they are not doing enough to counteract those voices who would prefer to think that the whole issue is a barefaced lie. Ironically, climate change denial and its attendant war on scientists goes against the better interests of energy companies, who badly need to foster science education and attract the best scientific minds into their organisations to meet the challenges of the future.

Just as uncritical acceptance of a claim is a bad thing, being sceptical does not mean that you must be hyper-sceptical when overwhelming evidence exists to support the conclusions. This is, in fact, an irrational position, based more on faith than reality. Climate deniers have set up a damaging war against science that is in nobody’s interest. The science, in terms of its broad conclusions, is in. Now sensible political strategies need to be put in place to limit CO2 and wean the world over to alternative sources of energy.


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Great skeptical battlefields

Terracotta Warrior (via Mike Stenhouse/ Flickr / CC Licensed)

One of the great things about skepticism is its diversity. There is a skeptical angle in so many areas of human interest. All you need to do is look under the cover of the marketing and you are bound to find some strange ideas hanging around. Consequently, skeptics are interested in all sorts of things, ranging from ghosts, to conspiracy theories, to alternative medicine, to UFOs; as well as the psychology, the history, and the philosophy that accompany such strange and bizarre thinking.

It can be easy to dismiss skepticism as purely a fascination with exotic and extreme ideas, but there is also a very serious side to skepticism. It’s one of the reasons why there is a skeptical movement in the first place. The world of delusional belief sometimes clashes with the world of reality in a way that can cause real casualties.

Here is a brief list of some of these battlegrounds for skepticism. The list below is by no means exhaustive. You may wish to add some of your own. It’s sometimes the case that even the most innocuous delusion can have serious consequences when brought to an extreme.

Anti-Vaccination

Although arguments against vaccines are as old as vaccines themselves, a concerted effort to challenge their use took shape in the 1990’s, when Andrew Wakefield published his findings in the Lancet, a well respected medical journal. Wakefield asserted a link between the childhood MMR vaccine and the onset of autistic spectrum disorders. Although his findings were subsequently found to be fraudulent and the paper withdrawn, the cat was out of the bag. The paper gave impetus to a wide variety of people who preferred to believe in a simple cause for autism, rather than the complex reasons uncovered by researchers. Celebrities such as Carol Vorderman, Jim Carrey, Jenny McCarthy and Bill Maher have been to the fore of the vaccine denial movement while websites such as the Age of Autism link vaccines to all sorts of other disorders. The result has been a drop in vaccination, particularly in the UK, France and the US. Consequent with this is a rise in viral illnesses such as whooping cough and measles. While most children recover from these illnesses, a small percentage are seriously affected, with children dying in some cases. Vaccine denial has consequences to public health because some people – very young babies and people with compromised immune systems – depend on herd immunity to keep them safe from these diseases. A large number of follow up studies have been performed, none of which found a link between vaccines and childhood autism. The relative safety of vaccines has been shown in multiple further studies. The war simmers on, however, with anti-vaccine proponents taking more extreme and conspiratorial viewpoints as their evidence base is undermined.

Creationism

Creationism is a belief that God designed all creatures on the planet to a plan and that species are immutable. More extreme (yet commonly held) creationist beliefs assert that the world is just 6,000 years old and that the Earth and everything on it was formed by God in literally seven days. This bizarre view flies in the face of evolutionary biology and a host of other scientific disciplines. To convinced creationists, evolution is cast as a godless nihilistic belief in dire conflict with the Bible. Although not particularly a problem in most of Europe (Turkey being a notable exception), battles continues to arise in areas where well-funded Christian or Islamic fundamentalists have a strong political influence. Successive attempts have been made in the US to permit creationism, or one of its many variants, to be taught in public schools.  Most of these attempts have been rejected by various US courts and grassroots skeptical opposition. The issue is important, because it exposes the lengths to which powerfully connected religious organisations will go to interfere with science education and science policy if it conflicts with their dogmas.

Alternative Medicine

Alternative Medicine (a.k.a. Alt-Med, Integrative Medicine and Complementary and Alternative Medicine [CAM]) is a hugely diverse area with many supporters and acolytes. It encompasses a large body of therapies and putative cures where there is either insufficient scientific evidence to establish their efficacy, or where the available science has shown them to be ineffective. Examples of Alt-Med include Chiropractic, Osteopathy, Acupuncture, Homeopathy, Naturopathy, Anthroposophy, Traditional Chinese Medicine, Chelation Therapy and Kinesthesiology to mention just a few. Although much Alt-Med predates modern medicine, it has experienced a come-back over the past few decades. This is, in some ways, a reaction to the systemisation of organised medicine and the inevitable side-effects or downsides of some medical procedures. With little objective evidence available to back up their claims, proponents liberally quote testimonials and anecdotes, antiquity and popularity as proof of effectiveness. Most Alt-Med therapies are promoted as completely safe, which is unsurprising as most of them are mere placebo. Apart from the fact that many Alt-Med proponents make wild, unsubstantiated claims to promote their remedies, there are some serious issues concerning its promotion and use. Alternative Medicine can needlessly prolong suffering. Irresponsible Alt-Med practitioners have, on occasion, dissuaded patients from more beneficial medical therapies. Alt-Med acolytes have been to the fore in preventing useful and necessary medical therapies from being implemented in places where they are badly needed, a harrowing example being the proliferation of AIDS in sub-Saharan Africa (see below).

Global Warming Denial

Scientists have known for a century that an increase in carbon dioxide can cause an increase in heat absorption in the atmosphere. Nevertheless, a convincing case for warming, and particularly man-made warming, has taken a long time to establish. Warming on a planetary scale is a slow and complex process, so a vast amount of data needs to be collected over decades. Even in the last 100 years, Earth’s temperature has fluctuated greatly, but the underlying trend is unmistakeable. Multiple lines of evidence point to a warming trend that can’t fully be explained through natural factors such as the sun, but which correlate very well with mankind’s increasing demand for fossil fuels. It used to be that global warming and climate change was a relatively uncontroversial part of the sciences. Due to recent international reports and agreements, it is now highly polarised and politicised, despite the fact that the great majority of climate scientists have become convinced by the scientific data now available. Climate scientists have been vilified by certain sections of the media while propaganda services, masquerading as independent think-tanks, receive massive funding from vested interests to cast doubt on the global warming findings. The tactics being used by deniers are almost identical to creationists, and tobacco illness deniers before them. Global Warming denial has become a statement of faith amongst the US Republican party, pitting science against ideology. Given the entrenched views, it could be decades before the issue is resolved: time that could be better used translating the scientific findings into useful action.

HIV/AIDS denial

AIDS is one of the great scourges of our age. Caused by a fast-mutating virus with a long incubation period, it is a very difficult disease to control and manage. Left untreated, it is almost always deadly.  According to the World Health Organisation, over 25 million people have died from the pandemic. Fortunately, anti-retroviral drugs have been developed that contain the illness, often offering many years of extra life to people infected with HIV. Despite this, AIDS researchers and activists have been engaged in a long battle with people who claim that HIV is not the cause of AIDS. These HIV deniers scored their biggest successes in South Africa, where, despite the epidemic growing to alarming proportions within the population, the Mbeki government refused to sanction or support anti-retroviral treatment for the illness. Given solid scientific and international support, HIV denialism has diminished as a major issue, with some of its more prominent supporters moving on to other fields of research.

Witch Hunting

Witch hunting is based on a belief that certain people are using magical powers or indulging in occult rituals in order to disrupt society. Accused people, blamed for everything from crop failure to illnesses or unexpected deaths, may be persecuted, ostracised, injured and sometimes killed – all because of a shared delusion among the community. As it is a “guilty until proven innocent” form of indictment, it can be enormously difficult for accused people to clear their name. Although widespread witch hunting disappeared from most societies many centuries ago, it continues to make its presence felt in some areas of the world. In the last decade, childrenalbinos and elderly people have been targeted as witches in Africa, often with tragic and fatal consequences. Similar stories have emerged in IndiaSaudi Arabia and the UK.

Cancer Quackery

While we could lump it in with the rest of Alt-Med, cancer quackery deserves its own special place on this list. Cancer remains one of the greatest problems besetting humanity in this century. Although there has been some progress over the last 40 years in the fight against cancer, far too many people have had their lives cut short by it, or, more precisely, the many different afflictions collectively labeled as cancer. No-one is immune: from leading cancer doctors, to pharmaceutical executives, to cancer quacks themselves; belying the main contention of the alternative cancer cure lobby that somehow an elite group are keeping the best stuff to themselves. Cancer quacks prey on the most vulnerable people, often demanding huge fees, while providing no convincing evidence of efficacy. While it is understandable that people in such situations will be willing to try almost anything, often the only long term “positive” outcome is the enrichment of charlatans. Cancer, along with many diseases that are difficult to cure, is an enormous challenge for medical research. The doctors, researchers and specialists simply haven’t yet figured out how to treat and cure many of these diseases. The trouble is, neither have the quacks. They are just better at pretending they do, and they have lucrative financial incentives.

Psychic Counselling

Psychics – people who claim to have supernatural knowledge or powers – come in many shapes and sizes. Psychics have made tidy fortunes through one-to-one counselling, as psychic performers in front of large audiences, or more recently through lucrative phone services. Psychics claim abilities that have never been verified through independent, objective testing. The techniques used are identical to mentalists, yet mentalists never claim to have psychic abilities. It’s easy to dismiss this as part of the normal patchwork of modern life, but in practice, psychics are often dealing with people who may be at a low ebb in their lives, or dealing with traumatic issues such as bereavement, illness or a relationship breakdown. They may benefit more, in the long run, from counselling by properly qualified professionals using evidence based techniques. Psychic counselling shares similar issues with alternative medicine in that there is a strong risk that valuable time is lost consulting psychics when potentially more fruitful avenues could have been used, or that psychics, convinced of their own powers, actively dissuade clients from other treatment options. There is a long list of people who have been manipulated and defrauded by psychics, or provided with information that has subsequently turned out to be utterly untrue.