Wind farms and abuse of statistics: bird edition

When "wind farms are dangerous" really just means "there are a lot of birds".

When dealing with large numbers, it helps to have an idea of the expected order of magnitude. That way, you can know whether it is merely the number which is large, or the thing it's describing as well.

For instance, if I tell you of a country with 140,000 people in long-term unemployment, it's rather important for you to know if I'm talking about the US (population 280 million) or Luxembourg (population 525,000).

That's a test a Spectator article, Wind farms vs wildlife, failed quite badly this week.

The author, Clive Hambler, is a lecturer in biological and human sciences at Oxford university, and quotes a number of statistics to demonstrate how dangerous wind farms are to wildlife. For instance:

Every year in Spain alone — according to research by the conservation group SEO/Birdlife — between 6 and 18 million birds and bats are killed by wind farms. They kill roughly twice as many bats as birds. This breaks down as approximately 110–330 birds per turbine per year and 200–670 bats per year. And these figures may be conservative if you compare them to statistics published in December 2002 by the California Energy Commission: ‘In a summary of avian impacts at wind turbines by Benner et al (1993) bird deaths per turbine per year were as high as 309 in Germany and 895 in Sweden.’

Similar claims are made throughout. Apparently the annual death toll of bats in the US and Canada is "up to three million", "Norwegian wind farms kill over ten white-tailed eagles per year", and so on.

What is missing is any context through which we can examine these numbers. It might change our interpretation of the figures to know that:

Domestic and feral cats have also been considered a major source of anthropogenic-caused mortality with estimates near 100 million annual bird deaths [in the US].

Or that, on roads near wetlands in Canada:

223 birds were killed per mile per year.                                                                                            

Power lines in the US are estimated to kill:

…approximately 130 million birds per year.                                                                                                        

While we're banning things, we may want to keep an eye out for that scourge of the avian world, windows:

97.6 to 976 million bird deaths per year in the U.S. due to collisions with windows… based on an estimated 1 to 10 bird deaths per structure per year from a fatality study in New York.

All those figures come from a 2005 paper by the US Department of Agriculture.

In other words, even with the massive figures from Spain – figures which show deaths per turbine per year two orders of magnitude higher than equivalent figures cited in the above paper, which are based on an assumption that for every confirmed death, there's nineteen uncomfirmed, and which come from a set of guidelines which explicitly concludes wind farms are OK for birds if built correctly (pdf) –  wind farms kill fewer birds than cats, power lines, roads or windows. That comparison would have been rather useful to include in the original piece. With that in mind, the numbers in the piece become less a demonstration of the awesome mortality of wind farms, and more a confirmation that yes, there are a lot of birds in the world.

Update

It's been pointed out on Twitter that I'm not comparing like to like. Spain is smaller than the US, of course. Thankfully, the USDA also estimates the number of birds killed by wind farms in America: between 20,000 and 37,000 a year. I let you draw your own conclusions from the discrepancy.

Wind Turbines in Spain. Photograph: Wikimedia Commons

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Is there such a thing as responsible betting?

Punters are encouraged to bet responsibly. What a laugh that is. It’s like encouraging drunks to get drunk responsibly, to crash our cars responsibly, murder each other responsibly.

I try not to watch the commercials between matches, or the studio discussions, or anything really, before or after, except for the match itself. And yet there is one person I never manage to escape properly – Ray Winstone. His cracked face, his mesmerising voice, his endlessly repeated spiel follow me across the room as I escape for the lav, the kitchen, the drinks cupboard.

I’m not sure which betting company he is shouting about, there are just so many of them, offering incredible odds and supposedly free bets. In the past six years, since the laws changed, TV betting adverts have increased by 600 per cent, all offering amazingly simple ways to lose money with just one tap on a smartphone.

The one I hate is the ad for BetVictor. The man who has been fronting it, appearing at windows or on roofs, who I assume is Victor, is just so slimy and horrible.

Betting firms are the ultimate football parasites, second in wealth only to kit manufacturers. They have perfected the capitalist’s art of using OPM (Other People’s Money). They’re not directly involved in football – say, in training or managing – yet they make millions off the back of its popularity. Many of the firms are based offshore in Gibraltar.

Football betting is not new. In the Fifties, my job every week at five o’clock was to sit beside my father’s bed, where he lay paralysed with MS, and write down the football results as they were read out on Sports Report. I had not to breathe, make silly remarks or guess the score. By the inflection in the announcer’s voice you could tell if it was an away win.

Earlier in the week I had filled in his Treble Chance on the Littlewoods pools. The “treble” part was because you had three chances: three points if the game you picked was a score draw, two for a goalless draw and one point for a home or away win. You chose eight games and had to reach 24 points, or as near as possible, then you were in the money.

“Not a damn sausage,” my father would say every week, once I’d marked and handed him back his predictions. He never did win a sausage.

Football pools began in the 1920s, the main ones being Littlewoods and Vernons, both based in Liverpool. They gave employment to thousands of bright young women who checked the results and sang in company choirs in their spare time. Each firm spent millions on advertising. In 1935, Littlewoods flew an aeroplane over London with a banner saying: Littlewoods Above All!

Postwar, they blossomed again, taking in £50m a year. The nation stopped at five on a Saturday to hear the scores, whether they were interested in football or not, hoping to get rich. BBC Sports Report began in 1948 with John Webster reading the results. James Alexander Gordon took over in 1974 – a voice soon familiar throughout the land.

These past few decades, football pools have been left behind, old-fashioned, low-tech, replaced by online betting using smartphones. The betting industry has totally rebooted itself. You can bet while the match is still on, trying to predict who will get the next goal, the next corner, the next throw-in. I made the last one up, but in theory you can bet instantly, on anything, at any time.

The soft sell is interesting. With the old football pools, we knew it was a remote flutter, hoping to make some money. Today the ads imply that betting on football somehow enhances the experience, adds to the enjoyment, involves you in the game itself, hence they show lads all together, drinking and laughing and putting on bets.

At the same time, punters are encouraged to do it responsibly. What a laugh that is. It’s like encouraging drunks to get drunk responsibly, to crash our cars responsibly, murder each other responsibly. Responsibly and respect are now two of the most meaningless words in the football language. People have been gambling, in some form, since the beginning, watching two raindrops drip down inside the cave, lying around in Roman bathhouses playing games. All they’ve done is to change the technology. You have to respect that.

Hunter Davies is a journalist, broadcaster and profilic author perhaps best known for writing about the Beatles. He is an ardent Tottenham fan and writes a regular column on football for the New Statesman.

This article first appeared in the 05 February 2015 issue of the New Statesman, Putin's war