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The podcast about the mind for people who think

Dec 1, 2016

In this episode, I talk with Dr Matt Williams, Lecturer in Psychology at Massey University here in New Zealand. We talk about the relationship between temperature and aggressive behaviour and assault, particularly with respect to climate change.

Matt's original paper can be found here:

http://link.springer.com/article/10.1007%2Fs10584-015-1438-7

Here is the abstract for some context:

A number of previous studies have reported a positive relationship between ambient temperature and the incidence of violent crimes such as assault. This has led some authors to suggest that anthropogenic climate change may result in an increase in violent crime rates. In this study, we report an investigation of the relationship between temperature and assault incidence in New Zealand. Both police data listing recorded assaults as well as data from the Ministry of Health listing hospitalisations due to assault were examined. Geographical, seasonal, and irregular daily variation in temperature were all positively related to the incidence of assault, although only the effect of irregular variation in temperature was robust to controls for plausible confounds. The estimated effect of irregular daily variation in temperature was approximately 1.5 % extra recorded assaults for each 1 °C increase in temperature. It remains difficult, however, to make accurate predictions about future assault rates in a warming world. For example, humans may react to sustained changes in climate in ways that differ markedly from their reaction to short-term variation in temperature. Climate change may also affect rates of violence via mechanisms other than those that currently drive the relationship between temperature and violence. Furthermore, assault rates may continue to change in response to factors unrelated to climate change, such as those responsible for the long-term historical decline in human violence.

Unfortunately, copyright restrictions mean that I can't post the actual article, but the point of the show is that the discussion helps to draw out some of this work and what the implications are, and who should care about it. 

I'd love some feedback from you about the show.

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Sarb
over a year ago

Thanks Tom - I think you're right - be good to see a comparable analysis. Stay tuned for the next few shows. I think you'll like them. Ps if you wouldn't mind checkout out the show page on iTunes and leaving a review there, that's one of the most helpful things you can do.

Thomas Huggins
over a year ago

Great initiative and a very interesting first episode. Would be great to see Dr Williams' research extended over future time scales and other geographic contexts.