Saturday, February 15, 2014

Storms and man-made disaster

"We are apt to believe that today we experience more violent upheavals of Nature than in past generations, but this is not so. Heavy storms and exceptional weather phenomena occurred much the same in past years as now."

Reginald M. Lester, "The Observer's Book Of Weather", Frederick Warne & Co. Ltd (1955)

But we can make things worse, whether it be the EU-directed failure to dredge rivers that has exacerbated the flooding this year or the late-19th-century dredging of the pebble beach at Hallsands that led to the sea's destruction of the whole village in 1917.

We've been planning to revisit possibly the best fish and chip restaurant in England (the Start Bay Inn at Torcross in Devon's South Hams), but fear the worst after the recent weather:





Some think efforts to stop coastal erosion at Slapton Ley are ultimately doomed, anyway.

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Thursday, February 13, 2014

I like ice cream

From Wikipedia

Back in the seventies when Big Questions were generally sorted out at the pub over a game of darts, a philosophically-minded friend said something to me I’ve always remembered.

“In the end you have to say I like ice cream.”

What he meant was obvious enough – we have our preferences and allegiances and in end we have to admit that’s all they are. We usually pad it out with reasoned argument, but may as well admit what’s behind it all – a liking for our own conclusions.

Most of us are not open to verbal persuasion and although the arts of argument can be good for the soul, it is worth remembering why we like ice cream. Or whatever else takes your fancy.

I like that cheap synthetic swirly stuff with a chocolate flake shoved in. I’m not so keen on proper ice cream full of genuine dairy products.

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A piece of human soliloquy

A quote from Santayana on the systems framing our ideas.

No system would have ever been framed if people had been simply interested in knowing what is true, whatever it may be. What produces systems is the interest in maintaining against all comers that some favourite or inherited idea of ours is sufficient and right.

A system may contain an account of many things which, in detail, are true enough; but as a system, covering infinite possibilities that neither our experience nor our logic can prejudge, it must be a work of imagination and a piece of human soliloquy. It may be expressive of human experience, it may be poetical; but how should anyone who really coveted truth suppose that it was true?

George Santayana - Winds Of Doctrine Studies in Contemporary Opinion

My reading of this is that experience is one thing, but framing into some kind of congenial narrative is another, much more problematic matter.

On the whole I am a data man. The data of experience may not be entirely trustworthy, but generally it is often more trustworthy than data framed by some prior allegiance, especially those covert allegiances of self-interest.

Not only that, very often the art of life lies in allowing the data of experience to tell its story, especially where the subject is complex. Unfortunately, as complexity increases so does the commercial, institutional and political value of those framing narratives. Leviathans to which we hand over our allegiance without so much as a whipped whimper.

Yet there are many times when data does tell a story if we are prepared to listen. Many folk seem to know this instinctively. They live life from day to day, being wary of confusing the data of experience with airy speculations.

I can’t help thinking it’s a good policy, but then another airy speculation comes along and off I go a-framing.

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Monday, February 10, 2014

What is climate science?

One of my minor ambitions has been to settle on a promising area of climate science and study it in depth. Downloading papers, data, plotting my own graphs and calculating my own stats – that kind of depth. However a problem arose.

What to study?

The more I look at the climate sciences, the more convinced I become that we are not even close to articulating the main climate drivers with their timescales and uncertainties. Well maybe we are getting to know more and more about the uncertainties, but that's the problem.

Although we are accustomed to speak and write of climate science and climate scientist, there are no such beasts. We use the terms as established norms of verbal behaviour, but in my view they do more harm than good. Our global climate is far too complex to be studied within a single discipline and it's time we acknowledged it.

In much the same way we speak of chemistry and chemists when what we really have are specialist chemists working in related areas we place under the umbrella of chemical science.

Unfortunately, sticking with the chemistry analogy, climate science has yet to discover its periodic table. Without something of the kind, some overall theory to justify the term climate science, there is not enough coherence to stitch the various climate sciences together. It is also possible that some climate sciences such as dendroclimatology may become obsolete.

I think a good deal of confusion has arisen from a perception that the climate is a cluster of known scientific laws so the stitching together is already done by those laws. There seems to be a largely covert assumption that all will become clear if only climate scientists select the appropriate data and build models to encapsulate known scientific laws.

This is essentially philosophical assumption – that it must be possible to resolve climate behaviour into known physics. However, with numerous failed climate predictions and the current warming hiatus, it is obviously not so. The current state of the game is that climate behaviour cannot be resolved into known physical laws.

So I haven’t found an area promising enough to be worth studying in depth because so far there isn’t one. That may be one reason why the public domain is saturated with embarrassing falsehoods, emotional rhetoric and appeals to authority. For those who must persuade and those who must be persuaded, there is nothing else on which to base the arts of persuasion.

The climate is fiendishly complex on all timescales. We need much more data and a huge flash of inspiration, but in any event there are no experts with a grasp of the whole subject.

As yet there is no such thing as climate science.

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Sunday, February 09, 2014

Plenty more fish in the sea - and they're storing carbon for us!

From The Conversation website, a report suggesting that we may have massively underestimated the quantity of sealife in the middle levels of the ocean. It may not be catchable, but it could be helping sequester carbon and so reduce the threat of global warming.

http://theconversation.com/fish-in-the-twilight-cast-new-light-on-ocean-ecosystem-22987

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A letter to Mr Christopher Booker

Dear Mr Booker

I read your latest piece on the origins of the EU (“The 100-year plot”, 8 February) with interest and would like your opinion on the implications of the English Constitution for the UK’s membership.

Some months ago, I ran a series of posts by a man called Albert Burgess, who claims that Ted Heath and others (some still alive today) knowingly and surreptitiously committed treason in 1972 (and later acts) by surrendering our national sovereignty without the public’s informed consent. Burgess is therefore pursuing the matter using the criminal justice system, and he and his colleagues have reported the alleged crimes to police stations around the country, obtaining crime numbers and pressing the police to investigate further.

A vital element of his argument is that that in choosing to change how we are to be governed, the English people, as Commons, must give their assent with their own voice and not merely via elected representatives. Yet we have never had a referendum on the fundamental issue.

If Burgess’ reasoning is correct – and I find his logic and history persuasive – then since the appropriate consent has never been obtained, surely this must mean that all acts of the British Government and Parliament implying surrender of sovereignty in any degree, are in that respect ultra vires and so have no force or effect . So rather than arguing for exit from the EU, we should be saying that we are not in it now, and we are ready to listen – skeptically, but politely - to arguments for our joining.

What do you think?

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Booze and bloody murder

Does the demon drink make people more likely to kill each other? The answers are ambiguous to say the least.

I looked up tables of adult (age 15+) annual alcohol consumption per capita here, and intentional homicides per 100,000 population here. Sifting out countries where data was not available under both headings, I was left with 184 nations for the purposes of statistical correlation.

The range runs from 1.0 (perfect correlation, so that as one figure increases so does the other, in every case) to -1.0 (perfectly negative correlation, so that as one increases the other reduces).

Overall, the correlation between the two factors for this list of countries is, surprisingly, -0.1. That is, virtually no connection at all.

What if we are more selective in our survey?

Boozer countries

If we look at the top 30 countries by alcohol consumption, ranging from Moldova's 18.22 litres of pure acohol down to Spain's 11.62 litres (UK: 13.37 litres), there is a significantly negative correlation with homicide: -0.29.

Yet when we narrow down further to the top 10 toping nations, there appears to be a positive correlation: 0.48. Having said that, within those ten countries the level of alcohol intake is pretty similar: 18.22 to 15.11 litres; whereas the murder rate varies widely, from 0.7 to 7.5. Perhaps all this shows is that with too small a sample you get erratic results.

Killer countries

The list of the 30 most homicidal countries starts with Honduras (91.6 murders per 100,000) and finishes with the Democratic Republic of the Congo (21.7 murders per 100,000). The annual alcohol intake ranges from Guinea's 0.36 litres of pure alcohol up to Uganda's 11.93 litres. In this violent subset of countries, the relationship between drink and killing is pretty much random: 0.09.

But narrowing down further to the top 10 most homicidal nations, starting with Honduras again but finishing at the Bahamas (36.6 murders per 100,000), we see that their range of alcohol consumption(3.61 - 9.43 litres) is about the same as the variance in the murder rate (i.e. max = about 2.5 * min), yet the two factors are negatively correlated: -0.39. (Too small a sample, again?)

Conclusion

The conclusion is that there is no definite conclusion, though we can suspect that other (perhaps political-economic and social) factors may have a more direct influence on the propensity to kill, than the average quantity of alcohol consumed.

If you had a "session" last night, you can at least endure your thick head today with a fairly clear conscience on that score.

If you want to know a bit more, here are the four lists, followed by the long list of 184 countries. Compare the UK with the USA, for example!









 
All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.