Your vaccine reporting should not look like this. Photo: Getty
Your vaccine reporting should not look like this. Photo: Getty

ScienceMarch 12, 2019

The problem with false balance reporting on vaccination

Your vaccine reporting should not look like this. Photo: Getty
Your vaccine reporting should not look like this. Photo: Getty

A measles outbreak in Canterbury has prompted a rush for vaccinations and airtime for anti-science perspectives. Jess Berentson-Shaw explains how the media can report responsibly on the issue

It is no secret, I love an effective vaccine. I love that all children can have a healthy childhood through the actions of both their own parents and others who don’t know them. It is a warm fuzzy union of science and collective action. My love affair has seen me accused on multiple occasions of being in the pocket of big pharma. Alas, no money has yet been forthcoming.

What is a secret is that people’s feelings about vaccinations are nuanced because vaccination is too often portrayed in the media as a battle between two sides: those who are “pro-science” and those who are “anti-vaxx”. And what falls in between this gap of reporting are the vast majority of people who need journalists to do better. People who need to build trust in both the science and health care professionals, in order to have good conversations and make informed decisions about vaccination.

False balance reporting is doing a disservice to society

One way that people in the media can play up this polarisation of views is through a technique known as false balance. It is a type of reporting that pits those with opposing views of the science against a scientific position, inferring both types of information are equally valid. The early (and not so early) days of climate change reporting included a lot of false balance.

The assumption underlying this type of reporting (if I am being generous to the reporters’ and editors’ motivations) is that people are smart, they can make up their own minds about the science, and it is good to present alternative views on a big issue. It is an argument based on the belief in “a marketplace of ideas”, in which all ideas should be able to compete, and the best information will win out.

Like most market-driven theories, this one is based on a pretty shallow understanding of how people and the world actually work.

Facts can’t outcompete emotion or opinion

No information is neutral because people are not driven by logic or facts. Studies have been showing for years that even scientific types use their values and beliefs to filter any information they receive, using emotion to decide whether to believe it or reject it. A foundational study by Dann Kahn at Harvard University showed that even a group of Harvard professionals responded to a scientific statement about nanotechnology mostly with emotion. They used their values to interpret the implications of the scientific statement. People in Kahn’s study formed totally opposing views about the risks and benefits of the technology based not on facts, but on what they thought was most important in life.

We are not computers. Rather, we take information and determine whether it fits with what we think matters in the world. We have an emotional reaction to information and reject or accept it as true on this basis. What this means is that scientific information won’t ‘outcompete’ opinion simply because it is factual. On the contrary, it is at a distinct disadvantage because often those advocating for science specifically try to create a “neutral” presentation. This is impossible because all language and communication frame certain ways of thinking about the world, even if we are blissfully unaware of it. So neutral information is often just information that is unclear on the story it is telling people.

Facts can’t outcompete misinformation

Not only are our brains not led by logic, but our information environment is awash with disinformation and misinformation that is constantly using narratives that are filled with values and emotion to persuade us. Many of our dominant cultural narratives – these are implicit stories that exist in society about how things work, why things happen to people – are based on a pretty thin understanding of research, science and evidence. Mainly because our brains have a preference for simple explanations, and the world can be complicated.  Facts and science, presented in neutral terms, just cannot penetrate these powerful cultural narratives when we are awash with intentionally framed misinformation, often driven by commercial or personal interests.

So when journalists and editors choose to pit the facts of vaccination against an emotive individual story about a parent’s fears, they have moved from informed reporting to helping spread misinformation about vaccination.

What should people in the media do instead?

While it is true that there are extremes in the conversation about vaccination, most people don’t actually have particularly strong views. What they have are easily triggered fears about their children’s wellbeing. What they need in order to make informed decisions is to feel listened to and develop trust in the health professionals who care about their children.

There are a multitude of structural responses required of digital media companies to halt the spread of disinformation and misinformation about vaccination. Facebook following Pinterest’s lead in slowing the sharing of false information about vaccination is a good start.

For individual journalists and editors, by all means, tell the stories of parents who have some concerns. But show what good communication about vaccination looks like between hesitant parents and health professionals who care. I have had great conversations with parents who have said to me: “My child had a reaction to a vaccination and I would do it again because I understand this matters not just for my children but vulnerable children who can’t be vaccinated.” Wow! That is a nuanced and important story.

Understand that the science is good but that it doesn’t have the same opportunity to penetrate as fear-based storytelling. So don’t go to people who are stridently opposed to vaccination. They only represent about 3% of the population anyway, so whose interests are you presenting? This just does harm. I know most journalists, despite what the public might say at times, do care about helping people and building a stronger democracy by providing good information. It takes a nuanced approach to ensure this is actually what you are achieving with the way you report on vaccination.

Dr Jess Berentson-Shaw is the author of A Matter of Fact. Talking truth in Post Truth World and Co-Director of The Workshop.

Keep going!
a green circuit board/computer guts with a battery being placed inside. this description is being written by soumeone who could know tell you what a graphics card is even if you put them at gunpoint, so it is not very helpful
Deep sea mining could extract resources used in electronics (Photo: Getty Images).

ScienceMarch 9, 2019

Building batteries that go beyond lithium

a green circuit board/computer guts with a battery being placed inside. this description is being written by soumeone who could know tell you what a graphics card is even if you put them at gunpoint, so it is not very helpful
Deep sea mining could extract resources used in electronics (Photo: Getty Images).

New Zealand researchers are developing alternative batteries from common material to go beyond lithium, skipping the solar cell and downsizing monster redox-flows. 

In today’s tech-hungry world, lithium batteries are ubiquitous. Everything from your mobile phone to the neighbour’s electric car rely on the metal, and it’s easy to see why. Lithium-ion batteries pack a serious punch, storing more energy than any other battery of equivalent size, and delivering power to where it’s needed, quickly and efficiently.

But did you know that they’re hardly ever recycled? The complexity and high cost of recovering materials from lithium-ion batteries means that, in the EU, 95% of them are either incinerated at their end-of-life, or end up in landfill. And Australian consumers recycle just 2% of the lithium-ion batteries they buy. It’s not as if the raw materials needed to make them – namely lithium and cobalt – are easy to find. Thanks to an ever-growing demand, pressure on their supplies have never been higher, and that’s before we consider the significant environmental impact of metal mining. Extracting one tonne of lithium requires more than two thousand tonnes of water, and a study of soil samples in a cobalt-mining region of southern Congo concluded that it was “among the ten most polluted areas in the world.”

It’s clear that something has to change. For MacDiarmid Institute‘s former director, Professor Thomas Nann, that ‘something’ is battery chemistry, and his solution is a very familiar metal – aluminium.

“Aluminium is similar to lithium in a key way – aluminium’s potential energy density (a measure of how much energy a material can store) is very, very close to lithium’s. But unlike lithium, aluminium is the third most abundant element in the Earth’s crust,” he says. Nann and his team took that as a starting point and set out to design a new aluminium-ion battery.

They wanted to stick with a familiar battery design – namely, two electrodes separated by an electrolyte – but everything else was up for grabs. Their first target was the electrolyte material itself which, because it carries the ions that make the battery work, can have a big impact on its performance. The best battery electrolytes are usually made from an expensive cocktail of compounds, so in search of a cheaper alternative, Nann and MacDiarmid-funded PhD student, Nicolò Canever looked to those already working with aluminium.

“It turns out that the mining industry was already studying a compound called acetamide, used to recover aluminium from minerals,” Nann explains, “and because acetamide can be produced by bacteria or plants, it is incredibly inexpensive.” That formed the basis of their new electrolyte, and in performance tests, it compared favourably to existing compounds but could be made for a fraction of the cost.

This work was published in a prestigious Royal Society of Chemistry journal in September, but the team’s design of a new electrode material took a different route. Nann’s PhD student, Shalini Divya had a challenge on her hands – rather than simply improving on what had gone before, her aim was to start from scratch, and rethink what she knew about electrodes. “In the end, Shalini found a material that outperforms everything that’s been published to date,” says Nann, “It is so transformative and so surprising that we’re now trying to commercialise it.”

A key step in the patenting process is to prove that lab-produced batteries could also be manufactured on commercial equipment, but that capability doesn’t yet exist here in New Zealand. So, funded by MacDiarmid, Nann and Divya travelled to Germany’s Fraunhofer Institute. There, they used the lab’s world-class facilities to make 20 of their novel aluminium-ion batteries and brought them back to New Zealand for testing. The results have been hugely promising, with Nann saying that they’re now “approaching the performance of lithium-ion batteries already on the market.” Best of all, their batteries could be produced with only very minor changes to existing processes “which is a key consideration for potential investors and manufacturers.”

Nann (who is now based at University of Newcastle, Australia) says the need for sustainable energy storage has never been more urgent. “As we transform into an energy landscape dominated by renewables, the problem is not getting hold of energy – after all, if we covered 250 by 250km2 of the Australian outback in commercial solar panels, we’d generate all the energy our entire planet needs,” he explains. “This isn’t as much area as it initially seems – rows of solar panels alongside existing highways could make a big impact.”

Can we skip the solar cell altogether, though?

Doctor Aaron Marshall.

Another battery project connects Nann with MacDiarmid researchers at the University of Canterbury. One of the collaborators, Dr Aaron Marshall says the project is funded under MBIE Smart Ideas, and involves looking at new smart materials that can convert sunlight directly into stored battery energy, without needing to making electricity in the process (i.e. skipping the whole solar cell creation of electricity step).

“We’re trying to find a material which absorbs the sunlight and catalyses the charging reaction directly inside the battery.”

Marshall and his MacDiarmid collaborators are also working to speed up (and shrink) redox flow batteries. In a redox flow battery, the ‘energy’ is stored in chemicals which sit in (usually big) tanks separate to the battery itself.   When energy is needed, the chemicals are pumped through the battery and through the porous electrodes.

“The concept is a bit like filling your car’s fuel tank with petrol – you could then leave the car for a year and it would still have a full tank of gas and be ready to drive when you needed it.”

And he says the chemicals are relatively abundant and therefore relatively cheap over the lifetime of the battery.

But the batteries are currently slow.

“Slow reactions means the battery requires big electrodes. And if the electrodes are large, the rest of the battery has to be large as well, and the whole thing ends up being expensive.”

So he’s hoping to coat the electrodes with new materials to speed up the reaction – so they can reduce the size of the electrodes.

“If we can improve the reaction rates by two-to-three times without losing efficiency, these new electrodes would make flow batteries very competitive.”

(This article has been adapted from its original publication in the MacDiarmid Institute’s annual report to reflect new information. Additional reporting was provided by Vanessa Young.)

This content was created in paid partnership with MacDiarmid Institute. Learn more about our partnerships here.