By David Salt
If you could go back in a time machine some 20 years, what would you tell a younger version of yourself about climate change and how the world has responded to it in the last two decades?
Back from the future
“Well, young David, you know how many people are talking about climate change; and how scientists are forecasting horror weather, ecosystem collapse and mass climate disruption if we do nothing about our carbon emissions? Well, guess what? I’m from your future, from 2022, and you know what we did? We did nothing!
“And the scientists were right. We’re now experiencing horror weather, ecosystem collapse and mass climate disruption.
“Of course, it’s unfair of me to say we did completely nothing. In the past two decades there’s been heaps of talk, research and many agreements signed. And many of us now have photovoltaics on our rooftops.
“The scientific consensus on climate change has only firmed since the year 2000, and there have been efforts in various places on ways of reducing carbon emissions.
“However, by and large, atmospheric concentrations of greenhouse gases like CO2 and methane have steadily, remorselessly, built up. (In 2000 we were around 370 parts per million CO2, in 2022 we’re over 412 ppm, over a 14% increase.)
“Here are few ‘milestones’ that you might want to reflect on from the past two decades (that’s the next 20 years from where you’re standing).
“As you know, there had been multiple international scientific consensus reports on the biophysical reality of climate change, most notably the IPCC reports of 1990, 1995 and 2001. These set out the very clear case for the scientific basis of the changes happening to the Earth system and what this meant for us, but they were quite ‘sciency’, bloated with technical jargon and largely discounted by the politicians.
“Then, in 2006, the UK released the Stern Review on the Economics of Climate Change. It was significant because it was the largest and most authoritative report of its kind setting out the dire consequences for civil society. It found that climate change is the greatest and widest-ranging market failure ever seen, presenting a unique challenge for the world. The Review’s main conclusion was that the benefits of strong, early action on climate change far outweigh the costs of not acting.
“I’m telling you this, young David, because at this time (still six years in your future) it looked like all the political ducks were lining up for strong action on climate change.
“In 2007, Australia elected in a new government led by Kevin Rudd who declared that ‘climate change was the great moral challenge of our generation’ and proposed a comprehensive policy called the Carbon Pollution Reduction Scheme (CPRS) that would put a cap on Australia’s carbon emissions. It would have placed Australia at the vanguard of global climate action.
“I have to say, young David, that up until this time I had begun to despair that any of our political leaders were going to do the right thing. And then Rudd stood up and said this was too important not to do something, we couldn’t abrogate our responsibility to future generations. I felt hope.
“But then the opposition conservative party decided to turn climate change into a divisive political battle, and the Greens said the CPRS wasn’t strong enough and voted against it… and the CPRS failed to pass through Parliament.
“And then Rudd said ‘Ah well, it’s too difficult to get through so we’ll park the CPRS and revisit it sometime down the line.’
“This moment is several years in your future, young David, but, mark my words, when you reach it your illusions that climate change is a tractable issue capable of being solved by good science and well-meaning people will be shattered. And it will be a significant moment in which you begin transforming into me, grumpy old David.
“Because you believed Rudd when he said this was the most important issue of our time. And you stopped believing him when he threw it to the side. (I note his party stopped believing in him after this, too.)
“And then I watched in horror as climate denialism started taking centre stage, populism trumped informed debate and the costs of acting were overhyped in order to prevent any meaningful action being taken. Stern’s mantra of ‘early action on climate change far outweigh the costs of not acting’ were completely forgotten in the political shit storms that followed.
“And then the Great Barrier Reef started bleaching (2016), our forest biomes went up in flames (2019) and historic floods devastated the nation (2022). The most common adjective being rolled out in all these disaster stories is ‘unprecedented’ because the past is no longer a guide to what we can expect.
“In 2022 (the year in your future from which I return) the whole world is enduring ongoing climate catastrophes. India and Pakistan have just suffered their longest and most intense heat wave resulting in crop failures. Europe is reeling under the ‘unprecedented’ heat and the fires are expected soon. In the United States an ‘unprecedented’ drought is crippling the water supplies of their western cities. Many of our small island Pacific nations are facing an existential crisis as rising seawaters lap at their doors. And everyone everywhere is going a little bit crazy.
“And, young David, this is not ‘a new normal’. This is only the start of the warming that scientists were describing two decades (and more) ago, with some accuracy I might add. Yet still our political leaders allow today’s ‘sunk investments’ in fossil fuels to delay our actions.
“Oh, and speaking of investments, young David, one last thing before I’m back to the future; buy as much stock as you can in Apple and Facebook. But don’t tell anyone I told you, otherwise I’ll be in big trouble with the mechanic who runs the space-time continuum.”
So, what’s the point of this little thought exercise (above and beyond a reflection on my earlier poor investment choices)?
In recent weeks, Australia has been gripped by an energy crisis – not enough affordable energy to power the system at the beginning of a cold winter. Experts from across the energy spectrum have commented on the causes and solutions to this crisis, always noting they are complex and not quickly solved. In response, many people have accused the experts of obfuscating and hiding behind the idea of ‘complex’. Just tell us how to fix it, they cry.
But it’s true, I thought. It is complex. You can’t solve this energy crisis with simple and easy fixes. You increase energy supply here, and you throw out the system over there. Simple fixes to complex problems inevitably create bigger problems down the line or on the other side of the continent.
And the energy problem is only a small part of the bigger climate change issue, which is complex times complex. Greenhouse gas emissions are embedded in our energy, our food, our transport, in everything.
And yet, again, our political leaders tell us there is a simple solution, just vote for us. Anyone who acknowledges it is a complex problem with complex solution will be torn to shreds by the opposing party when they go for election. The costs to the present status quo (based on fossil fuel dependence) will outweigh calculations on future sustainability.
Stern’s claim that the “benefits of strong, early action on climate change far outweigh the costs of not acting” are valid, but completely lost in the complex world in which we live.
In some ways I’m feeling like it’s 2007 again. We have just elected a new government promising action on climate change and hopes are high. But I fear we’re still not engaging with the complexity of this challenge.
If I could turn back time, this is what I would be trying to tell our political leaders. Don’t treat climate change as a simple problem. It’s not. It’s complex. And complexity means you need to acknowledge connectivity between sectors, path dependency, non-linearity and threshold behaviour in key variables. All themes which I will discuss in up-coming blogs.
I titled this essay ‘Why can’t we fix this? Because it’s complex.’ Another way of framing that is encapsulated in the quote: “For every complex problem there is an answer that is clear, simple, and wrong,” (HL Mencken).
I believe climate change is a challenge that can be resolved, but only if we acknowledge that it really is a problem of complexity.