I am sharing this piece by who is Professor of Geosystem Science and Leader of ECI Climate Research Programme at the University of Oxford. It was published on The Conversation. I share it for a reason. I think it deeply misleading and unhelpful, for reasons I note later in the post:
I was invited to speak to a group of teenagers on climate strike in Oxford recently. Like many scientists, I support the strikes, but also find them disturbing. Which I'm sure is the idea.
Today's teenagers are absolutely right to be up in arms about climate change, and right that they need powerful images to grab people's attention. Yet some of the slogans being bandied around are genuinely frightening: a colleague recently told me of her 11-year-old coming home in tears after being told that, because of climate change, human civilisation might not survive for her to have children.
The problem is, as soon as scientists speak out against environmental slogans, our words are seized upon by a dwindling band of the usual suspects to dismiss the entire issue. So if I were addressing teenagers on strike, or young people involved in Extinction Rebellion and other groups, or indeed anyone who genuinely wants to understand what is going on, here's what I'd say.
My biggest concern is with the much-touted line that “the Intergovernmental Panel on Climate Change (IPCC) says we have 12 years” before triggering an irreversible slide into climate chaos. Slogan writers are vague on whether they mean climate chaos will happen after 12 years, or if we have 12 years to avert it. But both are misleading.
As the relevant lead author of the IPCC Special Report on Global Warming of 1.5°C, I spent several days last October, literally under a spotlight, explaining to delegates of the world's governments what we could, and could not, say about how close we are to that level of warming.
Using the World Meteorological Organisation's definition of global average surface temperature, and the late 19th century to represent its pre-industrial level (yes, all these definitions matter), we just passed 1°C and are warming at more than 0.2°C per decade, which would take us to 1.5°C around 2040.
That said, these are only best estimates. We might already be at 1.2°C, and warming at 0.25°C per decade — well within the range of uncertainty. That would indeed get us to 1.5°C by 2030: 12 years from 2018. But an additional quarter of a degree of warming, more-or-less what has happened since the 1990s, is not going to feel like Armageddon to the vast majority of today's striking teenagers (the striving taxpayers of 2030). And what will they think then?
I say the majority, because there will be unfortunate exceptions. One of the most insidious myths about climate change is the pretence that we are all in it together. People ask me whether I'm kept awake at night by the prospect of five degrees of warming. I don't think we'll make it to five degrees. I'm far more worried about geopolitical breakdown as the injustices of climate change emerge as we steam from two to three degrees.
So please stop saying something globally bad is going to happen in 2030. Bad stuff is already happening and every half a degree of warming matters, but the IPCC does not draw a “planetary boundary” at 1.5°C beyond which lie climate dragons.
Get angry, but for the right reasons
What about the other interpretation of the IPCC's 12 years: that we have 12 years to act? What our report said was, in scenarios with a one-in-two to two-in-three chance of keeping global warming below 1.5°C, emissions are reduced to around half their present level by 2030. That doesn't mean we have 12 years to act: it means we have to act now, and even if we do, success is not guaranteed.
And if we don't halve emissions by 2030, will we have lost the battle and just have to hunker down and survive? Of course not. The IPCC is clear that, even reducing emissions as fast as possible, we can barely keep temperatures below 1.5°C. So every year that goes by in which we aren't reducing emissions is another 40 billion tonnes of COâ‚‚ that we are expecting today's teenagers to clean back out of the atmosphere in order to preserve warm water corals or Arctic ice.
Assuming people will still want to feed themselves and not turn the world over to biofuels, then scrubbing COâ‚‚ out of the atmosphere currently costs £150-£500 per tonne, plus the cost of permanent disposal. So those 40 billion tonnes of COâ‚‚ represent a clean-up liability accumulating at a cool £8 trillion per year, which is more or less what the world currently spends on energy.
So here is a conversation young activists could have with their parents: first work out what the parents' COâ‚‚ emissions were last year (there are various carbon calculators online — and the average is about seven tonnes of fossil COâ‚‚ per person in Europe). Then multiply by £200 per tonne of COâ‚‚, and suggest the parents pop that amount into a trust fund in case their kids have to clean up after them in the 2040s.
If the parents reply, “don't worry, dear, that's what we pay taxes for”, youngsters should ask them who they voted for in the last election and whether spending their taxes on solving climate change featured prominently in that party's manifesto.
Get angry by all means, but get angry for the right reasons. Action is long overdue, but to a British public sunbathing in February, weird though that was, it doesn't feel like an emergency. Middle-aged critics would much rather quibble over the scale of climate impacts (as if they have any right to say what climate young people should have to put up with) than talk about the clean-up bill.
Climate change is not so much an emergency as a festering injustice. Your ancestors did not end slavery by declaring an emergency and dreaming up artificial boundaries on “tolerable” slave numbers. They called it out for what it was: a spectacularly profitable industry, the basis of much prosperity at the time, founded on a fundamental injustice. It's time to do the same on climate change.
As noted, there are aspects to this that I find surprising, and even disturbing.
The first is that there appears to be no consideration of tipping points in what Myles Allen says. I find that bizarre when it appears that there is a very high chance that they might exist. Putting money in a trust fund will not put methane back in the frozen tundra if the permafrost melts. That process would be irreversible in any relevant timescales if it were to start. The implied claim that we are on a continuum does, then, seem to be wrong. This, then, is deeply misleading.
In that case the option to delay implicit in the article also seems to be wrong. If the risk is real the option of delay does not exist.
Third, I am worried that crass economics is implicitly endorsed: the idea implied is that financialisation of this issue can defer solving it. This is on display when it is suggested that money might be put in a trust fund to deal with this issue later on. First, we cannot delay. Second, this claim for financialisation is not true. Financialisation cannot solve the climate crisis. It undoubtedly helped create it: we did discount the future for too long. But it cannot solve it. This problem is real, physical and requires action now.
I am afraid that however good an environmentalist Myles Allen might be, he has a very poor grasp of the interaction of the real and economic worlds. He does the real world an injustice as a result buy even hinting at possibilities that do not exist. And right now that's far from helpful.
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“Your ancestors did not end slavery by declaring an emergency and dreaming up artificial boundaries on “tolerable” slave numbers.” I cannot believe anyone could write that. Of course they declared an emergency, to end slavery immediately and set a boundary of zero tolerance, and now we admire them for it.
One day humans will look back on our current age of excess with the same question, “Why?”, that we ask now about slavery. Climate Emergency IS the right language to press for action now.
Charles
Are you sure you are not ignoring the next sentence? I think the phrasing clumsy – which much of this piece is – but I think he meant the opposite of what he said when the next sentence is read with it.
Richard
Yes, but he seems to be using the comparison to down play the `emergency’ rhetoric. Whereas I find that referring to a ‘climate emergency’ is powerful and useful. As an I individual I delcared a ‘climate emergency’ which involves, as only one example, turning down conference invitations and explaining to friends and family why I am doing less travelling. My self-delcaration of ‘climate emergency’ has had a surprisingly significant impact on me, my employer, my work community, and wider community, and importantly there is no going back once you have made this step.
I am beginning to think this way
In a recent grant we have committed to limit travel
I confess I am very, very reluctant to contribute to this debate. I merely wish to reflect on this: suppose we are able drastically to reduce UK, European and even US CO2 output with sudden and immediate effect. Very commendable; but how are you going to persuade the BRIC countries, China, Russia, India and Brazil to act? Their populations and industrial output are potentially or actually on a different scale, and probably more critical to success: BRIC populations who see conventional economic growth as the way out of poverty for their vast and rapidly growing populations, are unlikely to wish to be told that only the West (notable in exploiting the BRIC countries in recent history) can be allowed to indulge itself, and then repent; but now self-denial is exclusively and forever to be the principal BRIC virtue. I am not sure how you begin to persuade, save by turning this into an issue of future economic advantage; certainly on the timescales you envisage.
I am inclined to think that advanced economies should (for example) pay Brazil not to develop its vast hinterland; treating the Amazon rainforests as having the same value to the West of (say) oil. Currently I understand that some scientific estimates have suggested that Amazon logging and burning are already producing 54 million tonnes of carbon a year (I claim no special knowledge or expertise). We may surmise that unchecked, this will rise – perhaps exponentially. I have no idea how you prevent this, but I do suspect that economics is the most powerful motivational mechanism of all. We should be able to learn from our own history, and our own activities.
I suspect we will have to pay
But to say our efforts do not matter is wrong: I suggest every contribution counts
I do not believe I said that anyone’s “efforts do not matter”; I wrote that the BRIC countries are “probably more critical to success”, and I believe that to be true.
In the West we are, I suspect given to over-emphasising our importance, and particularly the effects we can command at will. As time passes this misjudgement will become more pronounced. I would not wish to say more that that; but perhaps the lesson for me here, is that my initial instinct was right; not to contribute to this debate.
I am glad you have
But I have to say much of the debate here this weekend has been dispiriting
Professor Allen does seem to be muddying the waters by first admitting there is a very serious climate problem but then trying to reduce the urgency of taking radical actions to address the problem. Trying to impress people with his scientific and (?) economic arguments may influence parents in down-playing the issues and calming their children, but in reality he is appeasing the energy and business as usual establishment that Oxford University wishes to preserve to maintain their elite status.
12 years is literally the only thing useful that has ever come out of the IPCC. They have low balled the risk at every chance, this gave it a much needed sense of urgency. I knew immediately that 12 years wasn’t a hard deadline, it was how long we have to avoid 1.5C. We have no idea where or even if there is a tipping point. We know there are multiple positive feedback mechanisms for warming but it isn’t like a domino tipping all at once; Methane from the permafrost is definitely escaping but not in one huge burp. The whole conversation is ridiculous though. We may have already crossed the tipping point. Even if there is only a 10 percent chance that we hit a tipping point at 1.5C it is absolutely insane not to do everything possible to not have to find out.
Mitch MCconnell (leader of the GOP in the senate) finally admitted climate change is real and human caused. Never would have happened without 12 years.
The most important bit in his article was inserting the carbon calculator.
I had little idea of what my own carbon foot print was, so now I do and will take steps to reduce it by half. Something we should all do, Starting today
It seems that we are allowed to throw money at things we want to hide under the carpet but not at their root causes.
You don’t have to be a genius to see why. Pathetic.