Main

Science Archives

July 19, 2007

Omega 3 Fatty Acids

I went to a talk yesterday by Prof. John Stein. I was reasonably convinced that it would be a good thing to have a kipper for breakfast several times a week. Rather than trying to summarise the evidence here I recommend that you read the links below. The evidence for all the benefits is not utterly compelling, but I'm fairly convinced that it is worth eating more oily fish, and giving supplements to pregnant women and those thinking of getting pregnant as well as giving them to schoolchildren. It would be nice if school dinners offered mackeral or herring or sardines occasionally.

Guardian article about behaviour effect of omega-3 fatty acids.

Wikipedia has a long article on omega-3 fatty acids. You can read it here.
RSC article discussing health benefits of increasing omega-3 fatty acids

Impact on Heart Disease
George Monbiot on why our fishing policies is making it harder for us to get the right amount of Omega-3 fatty acids

September 8, 2007

Don't Diet

Only 4% of dieters will ever lose weight. This article from the wonderful Spiked gives the grim statistics.

This is really very worrying. Fat people, in general, certainly don't seem to me any stupider, less motivated, or in any way morally inferior to thin people. It is clear that having less food to eat makes you thin. I was struck by the fact that older people in China were universally thin, although there was evidence of increasing podginess amongst a proportion of the youth. How can it be that fat people don't recognise this and act on it? It all seems very odd.

Personally speaking, I am always hungry, and am always helping myself to unhealthy snacks. By sheer (genetic?) luck, I haven't gained any weight in decades. Moreover, I am a slothful, individual with an entirely sedentary job.

October 11, 2007

The Case Against Lomborg

I have never really before seen the environmentalists' argument against Bjorn Lomborg. In a nutshell, he argues that there are many better ways of spending our money than trying to bring down carbon dioxide emissions. Rather than just having an emotional reaction to the latest perceived environmental problem, he argues, we should analyze what impact on the earth, and on human society, it will have, and spend money controlling it only if it is cost effective to do so. It is very interesting that the line is attack is not to challenge any of his figures, which encourages me to think that his analysis is perfectly sound, but to argue that the problem of climate change is so serious that any attempt to quantify the magnitude of the problem, and to scientifically assess the damage it is likely to cause and to look at dealing with this damage directly is some kind of sacrilege.

Some of Mr Burke's argument are truly extraordinary, especially from a Green. One is that if the costs of invading Iraq were properly computed and compared to the benefits of removing Saddam then we and the US would never have gone to war in the first place, but that because decisions like this are taken by some process called 'politics' the fact that we did indeed take this action proves that the 'economic' analysis is somehow flawed.

Oddly enough, later in the article, Burke accuses Lomborg of practising politics, rather than sticking to economics, even though politics was previously asserted to be a somehow superior means of arriving at big decisions.

But the most extraordinary part of the article comes at the end where Burke lays into the Economist magazine for giving a platform for Lomborg. He states Until it chose to give a Danish lecturer in politics of no academic distinction whatsoever the rare accolade of a named essay, the world had remained in peaceful ignorance of Lomborg's opinions.. This actually shows how close the environmental movement is to a religion. Burke says: But its heavy promotion of Lomborg's faith-based approach to the future suggests that its current editors have changed sides. They should be ashamed.. I have no doubt which side is faith-based, and it is not Lomborg's.

References

There is an amazing amount of stuff about this on the web. Much of it biased. Wikipedia is a good place to start.

About Science

This page contains an archive of all entries posted to Steve Hemingway in the Science category. They are listed from oldest to newest.

Politics is the previous category.

Seen on the Web is the next category.

Many more can be found on the main index page or by looking through the archives.

Creative Commons License
This weblog is licensed under a Creative Commons License.