Climate change challenges us at almost every level of our identity. Photo: Getty
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Why are we still waiting for a solution to climate change? Because it’s hard

Stern finds solace in moral philosophy, drawing on Kant and Aristotle to argue the ethical grounds for action in defence of the rights of those as yet unborn.

Why Are We Waiting? The Logic, Urgency and Promise of Tackling Climate Change
Nicholas Stern
MIT Press, 448pp, £19.95

Recent temperatures have once again broken all records for a British July. We are now approaching the 370th month in succession that global temperatures have been above the 20th-century average. Yet, across the news channels, economists are insisting that London must expand an airport (but which one?) to sustain the inevitable growth in aviation. After 25 years of procrastination, why are we still waiting for policymakers and economists to accept the overwhelming evidence about climate change?

Lord Stern makes a strong argument for the economic and moral justification for ­action, just as he has done for close to a decade since he published his groundbreaking 700-page Review on the Economics of Climate Change. Stern argues repeatedly that it is an unprecedented threat and that a transition to low-carbon fuels will lead to a world that is “cleaner, quieter, safer, more energy-secure, more community-based and more biodiverse”. Hurrah for that.

Yet none of this is new: we have seen it in hundreds of reports, conferences and symposiums. Barack Obama, Margaret Thatcher, Robert Mugabe, Osama Bin Laden and now the Pope – surely the most improbable coalition in history – have all warned us. The most interesting question (and the promise of the book jacket) is “why it has been so difficult to tackle climate change effectively”.

Stern often seems perplexed by the question he seeks to answer. His rhetorical style is to present to us, in a neutral and noncommittal voice, a range of answers that “seem wise”, “useful” or “may have implications”. He frequently spirals into convoluted constructions such as: “If this interpretation is correct, then it would suggest that the task . . . may be more challenging than many believe.” This style exemplifies all too well why many people remain unengaged with such a dry, abstract and distant-seeming policy debate. Nobody talks about terrorism in this way.

Stern adheres to the central belief that “sound argument should be a necessary condition for sensible and rational action”. It is, he writes, “the arguments that matter”. Thus, for him, the polarisation and denialism that are throttling the political process across the English-speaking world are fuelled by faulty logic: “simple-minded objections”, based on a “handful of erro­neous papers”. Challenging the s­ceptics, he outlines four criteria which can show that “basic common sense . . . points strongly to action”.

Behind this carefully modulated language, one can sense a frustration with many people’s inability to think rationally. In interviews, he is far more candid, referring to those who disagree with him as “idiots” and “politically naive”.

This is, I fear, to misunderstand the nature of climate-change denial, which is in fact highly politically astute, well-informed and strategic. Denialism is not about bad ­information. Nor is it irrational. It is about the defence of deeply entrenched cultural values and economic power. Nowhere in this book does Stern deal adequately with this raw identity politics, even though few people have had such a sustained opportunity to see the political sausage-making process at such close quarters.

It is somewhat ironic that his title – Why Are We Waiting? – echoes the chant, sung awkwardly to the tune of “Oh, come, all ye faithful”, that accompanied so many social-rights campaigns of the 1970s. Stern makes only passing mention of the brutal political struggles of the past and ascribes the success of campaigns against slavery and apartheid to a change in “social attitudes”.

The examples he proposes when seeking case studies of previous “big, difficult structural changes” – smoking, lead in petrol and drink-driving – have little in common with climate change but much in common with his world-view. Each of them illustrates the dominant role of expert guidance, or, as Stern writes (with regard to smoking), the “expert-led, top-down, professional route to formulating policy”, combined with a moral calling to social responsibility.

As Stern confesses in the final chapter, however, cognitive psychology shows that all of us – expert professionals included – can be highly irrational. His friend Daniel Kahneman (to whom Stern refers breezily as “Danny”) won a Nobel prize for showing how cognitive bias permeates high-level economic decision-making. In Kahneman’s experiments, people consistently reject the arguments that seem so “rational” to Stern; driven by their cognitive bias, they avoid short-term costs even when they are told that this may lead to far higher costs in the long term. This innate bias is then reinforced by the social norms among policymakers, false optimism and selective storytelling.

Technocratic cultural bias may explain Stern’s greatest lacuna, a failure to recognise the central role that fossil-fuel production continues to play in corrupting the political process. Stern welcomes the removal of subsidies for fossil fuels – these distort the free market, after all – but gives no thought to a cap on their production or the $1trn per year that still pours into their expansion. Nor is he alone in this. The World Bank, his former employer, now routinely warns of catastrophic climate change while continuing to fund fossil-fuel production and carbon-­based energy production – providing, by one estimate, up to $3bn per year.

Stern rightly complains that economists attempt to force everything into a cost-­benefit analysis and notes, “When someone has a hammer, every problem looks like a nail.” He tries gamely to adopt other analytical tools yet there is no avoiding the reality: his life has been spent in the elite hammer culture of economic liberalism.

So, he brusquely discards the powerful critique of unlimited economic growth by his fellow economist Tim Jackson because it would “divert attention” into an “artificial race between growth and climate responsibility”. His commitment to the competitive market as the spur for innovation leads him to ignore the success of the Second World War’s command economies in transforming production. Surely these provide a better economic precedent for “big, difficult structural changes” than drink-driving?

That said, his critique of mainstream economics is still valuable and pertinent. Throughout his book, Stern keeps returning to the same core theme: that conventional economics is lousy at coping with intergenerational equity, in which the affluence of one generation is obtained at the cost of the others that will follow.

He is scathing about conventional economic models that have “grossly underestimated” the risks of future climate change. In a lengthy and often impenetrable section on discount rates (the rate at which utility declines over time), he shows that conventional theory so heavily discounts the future that it “comes close to saying, ‘Forget about issues 100 years or more from now’”.

Stern finds solace in moral philosophy, drawing on Kant and Aristotle to argue the ethical grounds for action in defence of the rights of those as yet unborn. His arguments, although maintaining his air of donnish abstraction, are an important attempt to place this nebulous issue within an intellectual tradition. It is when he drops the passive voice of the technical expert and speaks of his personal concerns for the vulnerable or future generations, however (as he charmingly showed in his Ted talk, standing next to his two-week-old grand-daughter), that he becomes most persuasive. Economics is a vital tool for implementation but it is these non-negotiable emotional values that are most likely to propel us into action.

So, why are we waiting? Because ­climate change is damned hard. It challenges us at almost every level of our identity and forces us to rethink what we assume to be true. Stern is a decent man struggling, like all of us, to cope with the immensity of this change and the challenge it poses to his world-view. I’m glad he is on our side.

George Marshall is a co-founder of the Climate Outreach and Information Network and the author of “Don’t Even Think About It: Why Our Brains Are Wired to Ignore Climate Change” (Bloomsbury)

This article first appeared in the 22 July 2015 issue of the New Statesman, How Labour went mad for Jeremy Corbyn

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Why does food taste better when we Instagram it?

Delay leads to increased pleasure when you set up a perfect shot of your dinner.

Been on holiday? Take any snaps? Of course you did – but if you’re anything like me, your friends and family didn’t make it into many of them. Frankly, I can only hope that Mr Whippy and I will still be mates in sixty years, because I’m going to have an awful lot of pictures of him to look back on.

Once a decidedly niche pursuit, photographing food is now almost as popular as eating it, and if you thought that the habit was annoying at home, it is even worse when it intrudes on the sacred peace of a holiday. Buy an ice cream and you’ll find yourself alone with a cone as your companion rushes across a four-lane highway to capture his or hers against the azure sea. Reach for a chip before the bowl has been immortalised on social media and get your hand smacked for your trouble.

It’s a trend that sucks the joy out of every meal – unless, that is, you’re the one behind the camera. A new study published in the Journal of Personality and Social Psychology suggests that taking pictures of food enhances our pleasure in it. Diners at the food court of a farmers’ market in Philadelphia were asked either to photograph their meal or to eat “as you normally would”, then were questioned about how they found it. Those in the photography group reported that not only did they enjoy their meal more, but they were “significantly more immersed in the experience” of eating it.

This backs up evidence from previous studies, including one from this year in the Journal of Consumer Marketing, which found that participants who had been asked to photograph a red velvet cake – that bleeding behemoth of American overindulgence – later rated it as significantly tastier than those who had not.

Interestingly, taking a picture of a fruit salad had no effect on its perceived charms, but “when descriptive social norms regarding healthy eating [were] made salient”, photographing these healthier foods did lead to greater enjoyment. In other words, if you see lots of glossy, beautifully lit pictures of chia seed pudding on social media, you are more likely to believe that it’s edible, despite all the evidence to the contrary.
This may seem puzzling. After all, surely anything tastes better fresh from the kitchen rather than a protracted glamour shoot – runny yolks carefully split to capture that golden ooze, strips of bacon arranged just so atop plump hemispheres of avocado, pillowy burger buns posed to give a glimpse of meat beneath. It is hardly surprising that 95 million posts on Instagram, the photo-sharing site, proudly bear the hashtag #foodporn.

However, it is this delay that is apparently responsible for the increase in pleasure: the act of rearranging that parsley garnish, or moving the plate closer to the light, increases our anticipation of what we are about to eat, forcing us to consider how delicious it looks even as we forbid ourselves to take a bite until the perfect shot is in the bag. You could no doubt achieve the same heightened sense of satisfaction by saying grace before tucking in, but you would lose the gratification that comes from imagining other people ogling your grilled Ibizan sardines as they tuck in to an egg mayonnaise at their desk.

Bear in mind, though, that the food that is most successful on Instagram often has a freakish quality – lurid, rainbow-coloured bagel-croissant hybrids that look like something out of Frankenstein’s bakery are particularly popular at the moment – which may lead to some unwise menu choices in pursuit of online acclaim.

On the plus side, if a diet of giant burgers and salted-caramel lattes leaves you feeling queasy, take heart: if there is one thing that social media likes more than #avotoast, it is embarrassing oversharing. After a week of sickening ice-cream shots, a sickbed selfie is guaranteed to cheer up the rest of us. 

Felicity Cloake is the New Statesman’s food columnist. Her latest book is The A-Z of Eating: a Flavour Map for Adventurous Cooks.

This article first appeared in the 25 August 2016 issue of the New Statesman, Cameron: the legacy of a loser