August 24th, 2008 Posted in Climate Change, Conspiracy Theories | No Comments »
I’m off on holiday in a few hours, expected back late on Sunday night (31st August). I’m not expecting to add any more posts until Monday 1st September.
Just in the mean time, I thought I’d say something to the folks at Climate Resistance, whose blog was shown to me a few days ago. Now, before I start, I have no intention whatsoever of pretending to be an expert on climate change, though I do claim to be an expert on the scientific process. I put forward a few thoughts rather more as speculative questions and ideas that may well have perfectly valid answers, but which I feel ought to be considered. Also, I agreed with their recent post on the activities of charities in Africa and how the modern world seems to be rebelling agaisnt the modern science and technology that gives them such an unprecedented standard of life. For what it’s worth, I think that the current trend of sending aid to Africa is massively destructive, but that’s a story for another time.
So, to climate change. To get my opinion out first, as I am (like all humans) biased: I believe that climate change is a real and potentially dangerous scenario, with human activity the major contribution to this. I believe that most scientists are conservatively underestimating the scope of this effect. I view all theories which disagree with the IPCC findings to be substantially against the scientific consensus and are, therefore, conspiracy theories. And, as I’ve said before, all conspiracy theories are wrong.
Firstly, it seems to me that most criticism of the theory of human-induced global warming seems to centre around the concept of uncertainty. Most critics admit that there’s some warming effect and that humans are causing some of it, but they are highly dubious of the concept that we’re causing most of it, and that we can do something to stop it.
The IPCC seems to disagree, stating in its most recent report that “Most of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic (human) greenhouse gas concentrations.“ Very likely, in their definitions, means more than 90%. The IPCC, in order to generate such an opinion, surveys the peer-reviewed scientific literature, not just the Daily Mail.
Critisicm of the IPCC seems to focus on a few points. Firstly, they are a review body - not actually carrying out research themselves, but rather aggregating and reviewing the research carried out by others. That doesn’t worry me - if anything, not having spent their entire lives dedicated to proving one particular side of the debate makes them more reliable. Around 90% of the members of the IPCC seem to be from the various member governments who, as far as I can see, have a massive incentive to underestimate the effect. After all, dealing with climate change will negatively affect the nations involved, and will have a greater negative effect on those that are the richest, and (presumably) send more people to the IPCC.
So the IPCC is apparently composed principally of individuals with a vested interest in underestimating the potential effects of climate change, and they review the entire corpus of scientifically peer-reviewed literature. The viewpoints of a few scientists who disagree with this, perhaps due to personal prejudices, should be weighed against the majority.
As a final point, I would compare the concept of climate skepticism against something more readily understandable as a human. Let’s say you felt unwell and went to the doctor to get a checkup. Imagine that the doctor said that the test showed that it was 95% chance that you had some sort of advanced medical condition like liver disease or cancer, that the disease was 90% likely to be caused by your own diet and lifestyle, and that there was a chance of reducing or totally curing this disease by coupling a substantial change in lifestyle with some more radical medical treatment. Let’s say that 9/10 doctors agreed with this sentiment, but a few weren’t certain and thought that perhaps the risk was overstated and that maybe the tests could be explained in other ways.
Of course, the human desire would be to believe this minority of doctors who had the good news, not the majority with the bad news. Perhaps some of those dissenting doctors were selling a pill that could help to cure you of your alleged ills. Some probably weren’t - they were just genuinely skeptical. That’s ok, I like skepticism - in fact, I insist on it. But here’s the problem - the majority of doctors have said that there is almost certainly something very wrong with you that could kill you if left untreated, and which could at least be tackled by a substantial change in diet and lifestyle, and may well be cured completely.
Who amongst you could honestly say that, faced with this information, you would say “Actually, thanks for that, but I’m going to keep smoking and drinking heavily and I’ll see what happens. Let me know when you’re 100% certain that I’m dying and tell me if there’s still anything I can do or if it’s too late.” That, to me, sounds like suicide.