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Andrea Taylor, Associate Professor in Risk Communication, University of Leeds

Should the UK name heatwaves like storms? It won’t make people take them more seriously

The UK Met Office has given storms forenames for the past decade as part of an effort to raise public awareness of extreme weather before it strikes. Heatwaves are becoming increasingly frequent and severe due to greenhouse gas emissions, predominantly from burning fossil fuel, which are raising global temperatures by trapping more heat in Earth’s atmosphere.

These extreme heat events aren’t named in the UK. Should that change?

Effective communication strategies are necessary to make people aware of upcoming heatwaves and help them understand how to reduce their risk. Spain started naming them in 2023, with Heatwave Zoe. Italy has a longstanding but unofficial tradition of naming heatwaves according to mythology and classical history.

The results include Lucifero (Lucifer, another name for the devil) and Cerbero (Cerberus, the three-headed dog that guards the underworld in Greek myth), popularised by the private weather service il Meteo (ilmeteo.it).

Severe heatwaves in summer 2023 and 2024 prompted a campaign to name heatwaves after fossil fuel companies, to increase awareness of their role in climate change.

However, there is limited evidence to indicate whether this would be effective in encouraging people to take proper safety precautions during heatwaves, such as staying in the shade between 11am and 3pm, closing the curtains of sun-facing windows during the day and making sure to have enough water if travelling and looking out for those who may struggle to keep themselves cool and hydrated, such as elderly people living alone.

To explore how effective naming heatwaves might be, my research team conducted online experiments with 2,152 people in England and 1,981 people in Italy.

Lucifer is scarier than Arnold

Participants were asked to imagine that next summer, they were to receive a warning that a heatwave was about to affect their country. Participants were randomly assigned information about an event that was was either unnamed, given a threatening name (Lucifer/Lucifero), or a more neutral name (Arnold).

Then they were asked how much of a risk they though that the event would pose and the actions they would anticipate taking. English participants were also asked about their thoughts on storm-naming practices in the UK and whether they felt that this should be extended to heatwaves.

We found that naming a heatwave had no effect on the intention of people to take protective measures against it in either country. In Italy, there was no difference between how people perceived the unnamed heatwave and Lucifero, but Arnold was judged to be slightly less concerning and severe.

This suggests that, while naming a heatwave does not increase concern, departing from Italy’s established convention of using threatening names does reduce it slightly.

Rear view of a senior man in an armchair.
Isolated older people are typically most at risk during heatwaves. Ground Picture/Shutterstock

Our participants in England rated Lucifer as more severe and concerning than an unnamed heatwave, though not by much. When asked about their thoughts on naming weather events more broadly, English participants tended to agree that naming storms made people more likely to engage with weather warnings, but only a minority were in favour of naming heatwaves. Overall we found that, while some people were generally supportive of naming weather events, others worried it could sensationalise them.

It probably won’t help much

We did not find enough evidence to support naming heatwaves in the UK.

Despite a large sample, we found only a very small effect on perceived risk and did not detect any greater intention to take safety precautions for a named heatwave. We also found that responses differed between England and Italy.

Heatwaves can cross national borders. The fact that there are national differences in how people respond to naming them could lead to unintended differences in how people interpret the risk in different places.

And unlike storms, which usually take place over a single day with a clearer start and end, heatwaves can last from days to weeks – it’s not always clear whether a prolonged hot spell is one heatwave or a series of them, which could lead to confusion if named.

Heatwaves are an opportunity to discuss the risks posed by climate change. But naming heatwaves risks coming across as sensationalist to some members of the public. This might have the opposite effect, and make people less likely to heed safety messaging about severe heat.


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The Conversation

Andrea Taylor receives funding from The Lloyds Register Foundation, UKRI and Horizon Europe.

This article was originally published on The Conversation. Read the original article.

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