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We need radical realism: The case for fast, feasible and universal climate action

As we move on from our practical failure to keep global warming to 1.5˚C, we need to keep work­ing, not give up. But we should also ask what we are doing wrong, not just keep pushing with the approach that has failed us.


By Simon Glynn


Photo: Markus Spiske/Pexels


Let’s be honest. We have spent so long getting started on incremental efforts that would have been effective 20 years ago, that the climate actions happening now are woefully inade­quate for the stage we are at. The action we need at this point is radical, not incre­mental.

But that is not yet where many business leaders’ mindsets are. And the prom­inent radical visions out there don’t provide a credible beacon to follow. Too often, we are offered a choice between radical optimism and radical pessimism, when what we need is radical realism.

For the world, investing to achieve the 1.5˚C ambition of the Paris Agreement would have been the best choice to make. The costs of missing that target will hugely outweigh the costs of achieving it, in both financial and human terms.

The target is a point on a continuous scale, so it is right that if we miss it, we should not give up, but strengthen our efforts to get as close to it as we can. But we should also take stock. If we are pursuing an approach that allows us to miss this target, then there is something wrong with the approach.

If we are pursuing an approach that allows us to miss our climate targets, then there is something wrong with the approach

It is easy to argue that all that is wrong is historical delays and sluggishness, and we are now gearing up. And indeed, the progress in ac­tivity over the past couple of years has been dramatic. The trouble is that the actions we are now taking are no longer fit for purpose.

Twenty years ago, the ‘glide path’ we needed to follow to keep within the planet’s carbon budget for a 1.5˚C tempera­ture rise was quite gentle. On that path, annual incremental gains would have gone a long way. But instead, we have spent most of that carbon budget before even starting to reduce our global emis­sions, and so the reduction we now need to achieve is more of a ‘base jump’ than a glide path.

Yet we are still putting a lot of effort into mecha­nisms that deliver incremental change, but not the systemic changeout we now need. We can’t get to net zero just by doing less; it can only happen by doing different. That’s a differ­ent type of quest.

We need a more radical approach: one that is fast, if we are to come close to our 2030 re­duction goals; feasible, so we can make it happen in practice, not just theory; and uni­versal, recognising that the system to decar­bonise transcends differences between rich and poor countries, resource-rich and resource-poor countries, autocratic and democratic countries, and so on.

The world-scale economic argument for in­vesting in the climate transition is clear. For years, the World Bank and other institutions have built models showing not just that we need to invest trillions of dollars each year in green infrastructure, but that the money invested yields an attractive economic gain compared with the business-as-usual alter­native.

Collectively, we can well afford to invest – in fact, we can’t afford not to.

We are still putting a lot of effort into mecha­nisms that deliver incremental change, but not the systemic changeout we now need

The challenge is in translating that global eco­nomic rationale into a financial rationale for each actor who needs to make the in­vestments. A critical test for any approach to climate ac­tion is to ask who will pay the cost, and why will they do it? This is a rela­tively easy ques­tion to answer for incre­mental changes, but tougher when we go more radical.

For any climate action that costs money, there are five ways it could be funded:

  1. The end consumer may voluntarily pay a premium for a green solution, and this premium travels along the value chain to where the costs are incurred.

  2. A company may require the end con­sumer to pay, by building the action into how it operates, designs products or buys from suppliers.

  3. A government may require the end con­sumer to pay, by setting standards that oblige providers to act, as the EU is doing through the announcement of a future ban on internal combustion engines.

  4. A government may pay for the climate action itself through subsidies, grants etc., as the US federal government is doing through the Inflation Reduction Act.

  5. Innovation ensures that the action pays for itself, so the only finance needed is to ‘prime the pump’ to make the new solution cost-competitive.

In practice, the first two approaches can only work for incremental solutions, where the cost to be recouped is low. Consumers, whatever they tell researchers, do not pay significant premiums for green solutions – there are too many other factors in play. Some will pay more when they also get a direct benefit, as with the pleasure of driving an electric car – but even that won’t spread through the cost-conscious part of the market without state help.

Companies can absorb or pass on incremental costs as, for example, Walmart and Salesforce do when they impose climate standards on their supply chains – but these can’t be substantial extra costs, or the companies choosing to take them on would become uncompetitive.

So for radical change, we are down to options 3–5…

Wind and solar are now both claimed to be cost-competitive without subsidy but construction is still not happening at the pace we need

The fifth option (innovation) is ideal, where it can be made to happen. This is what Bill Gates is describing when, in How to avoid a climate disaster, he talks about the need to eliminate the ‘green premium’. Wind and solar are the often-cited poster children. Advanced nu­clear has a good, though un­proven, prospect of following a comparable cost curve, as the technology moves from massive site-spe­cific projects to controlled and replicable factory-based manufacture.

Nice work if you can get it. But the opportu­nities are limited. Will restricting ourselves to these opportunities allow us to achieve our goals in the time we have? Or, together with the incremental efforts made in using the first two ap­proaches, might it give a false appearance of pro­gress that al­lows governments to avoid playing their role in the third and fourth approaches?

The examples of wind and solar show both the potential of this approach – they are now both claimed to be cost-competitive without subsidy – and the limitation: de­spite this claimed position, construction is not happening at the pace we need, because of both hidden costs and hidden barriers.

(For wind and solar, the hidden costs in­clude the infrastructure needed for electric­ity transmission and storage, end-of-life recovery, and the decreasing returns to scale as expanding usage spreads to ever less favourable sites. The hidden barriers include local and political resistance to use of land for turbines, solar arrays and trans­mission lines, and the environmental and geopolitical challenges of sourcing the min­erals that a renewable-energy grid would depend on.)

Let us see how three different mindsets for radical climate action answer this exam question.

The radical optimists say we need trillions of dollars of annual transition finance, and are confident that markets can provide and direct this funding

The radical optimists acknowledge that we need trillions of dollars of annual transition finance, and are confident that markets can provide and direct this funding. They are radical, in embracing flows of finance that are vastly greater than we have managed so far; and they are opti­mists, believing that our existing institu­tions and systems will deliver this voluntar­ily, quickly and at scale in a massive step up from what has yet been achieved.

To support this view, they are often particu­larly optimistic about the second of our approaches: companies requiring the end consumer to pay, by building climate actions into their businesses and cost struc­tures. This is what must happen when com­panies make voluntary net-zero commit­ments to investors and other stakeholders, then make transition plans to deliver those commit­ments, in the absence of pull from consum­ers.

And that is what is happening today: companies are reporting most pres­sure from their investors and business-to-busi­ness customers, and relatively little pres­sure from consumers or policymakers.

But it is happening at an incremental, not radi­cal, level.

A carbon market may look like an attractive solution, but it is still not enough to get to net zero as emissions in the Global North will still need to be eliminated

How can this approach be scaled up to a more radical level, without loading compa­nies with increased costs that put them out of business? The radical optimists have two answers: disclosures and carbon markets.

Certainly, companies are about to face new demands on how they disclose their carbon emissions, in particular from the U.S. Secu­rities and Exchange Commission and the European Union’s Corporate Sustainability Reporting Directive. These regulatory bur­dens help level the playing field, with companies knowing that their competitors (at least in the same jurisdiction) face the same regulations. But disclosures aren’t the same as emission reductions.

Voluntary carbon markets can help close the gap, by shifting the actual decarbonisa­tion to where it is cheapest to implement, so more radical change becomes affordable. A man­ufacturing company in the Global North may not find it affordable to make radical cuts to its emissions directly; but if it can instead buy carbon credits for the same level of emissions reductions in, e.g., the Global South, bigger cuts become finan­cially viable.

In the short term, this looks an attractive solution, amplifying the reduc­tions we can achieve for the same level of investment. But to get to net zero, the real emissions in the North will still need to be eliminated, so the carbon market can only postpone that cost, not actually avoid it.

In reality, the radical optimist approach is less of a pure market play than its rhetoric suggests. It recognises the need for ‘conces­sional finance’ – that is, finance from pub­licly funded development banks for projects and capacity building that private finance won’t pay for because they don’t see a suffi­cient commercial return.

This is a stealth form of our fourth approach – governments paying for climate action – in that any losses or below-market returns are paid for by the states that fund the development banks. But the stealth matters, because it hides the accountability and public ac­ceptance for how public money is spent, beneath a market veneer – which is likely to limit the level at which funding can be provided.

The radical pessimists conclude that what is needed is nothing less than a revo­lution in our economic system

The radical pessimists are sceptical of these market-based solutions. They see the se­ductive power that markets have over the business world. They also see that while we build ever more sophisticated concepts for carbon accounting and trading, global carbon emis­sions continue to rise. And we are already nearly halfway through the time between when the Paris Agreement was signed in 2015, and 2030, the deadline for halving global emissions in order to be on track for a 1.5˚C temperature rise. So some level of pessimism is warranted.

The radical pessimists conclude that what is needed is nothing less than a revo­lution in our economic system. We need to challenge the core of how capitalism has worked throughout our industrial age, including the pursuit of growth itself.

The rationale for a ‘post-growther’ perspec­tive is straightforward. Perpetual, exponen­tial growth is hitting our planetary limits – in the atmosphere’s capacity for carbon di­oxide without overheating; in land for food without causing mass extinctions; and in raw materials. It is hard to ‘decouple’ eco­nomic growth from these physical de­mands, and in any case, above a certain level of prosperity, greater material wealth does not appear to make us happier.

So, the argument goes, in order to relieve the stress on the planet, we need to break our addic­tion to growth.

To make a transition in the few years that we have for decisive climate action, we would need a world revolution – and the peo­ple arguing for this are not planning one

This argument answers the exam question by rejecting its premise: we shouldn’t be making these investments in the first place. ‘A less energy- and material-intensive economy is likely to be one that revolves around care and creativity, rather than the induced dissatisfaction of consumerism’, it is argued.

Radical, certainly. But is this necessarily pessimistic, if we can be a happy society freed from our addiction and embracing a more transcendental existence?

The pessimism comes from recognising that, whether or not this state is desirable, it is not attainable. Degrowthers agree that it would require a different politics, as well as a different economics. To make a mean­ingful transition in the few years that we have for decisive climate action, we would need some sort of world revolution – and the peo­ple arguing for this shift are not planning one.

Whatever the intellectual or moral ar­guments for a post-growth society, to argue the case without the revolutionary move­ment it would take to bring it about is a re­signed, pessimistic stance. It is a pessi­mism that feeds itself, allowing its advo­cates to be uncompromising in their pursuit of idealised solu­tions, in denial about the likelihood that these will actually happen.

We must draw on new technolo­gies, invest in them and bring them to scale, and not bet everything on any single solution

Is there a middle way? What would a radical realist answer be? Can we find a way to act on climate change that is fast, feasible and universal?

To be fast, we need to work with the system we have. Greta Thunberg told us in 2019 that we must ‘act as if our house is on fire – because it is.’ When your house is on fire, this is not the time to explore if there are better ways to organise the fire service. So we can’t depend on rein­venting capitalism.

To be feasible, we must draw on technolo­gies that are not yet mature and cost-com­petitive. We can’t get there without them. And we can apply them with the time and re­sources we have available, provided that we invest heavily in bringing them to scale (as has happened with wind and solar), and we don’t bet everything on any single solution.

We can’t be sure today about the productiv­ity, financials and timing of advanced nu­clear, carbon capture, new industrial energy carriers such as hydrogen and ammonia, or the displacement of animal agriculture by precision fermentation. But we can see that the untapped potential is enormous, with each advance helping to decouple economic growth from carbon emissions. We can sen­sibly invest in a portfolio of these technolo­gies, without betting our future on any one of them. And we can make that in­vestment profitable, if we set up supportive reg­ula­tory frameworks that promote their adop­tion as they prove themselves – but we should not pre­tend that the private sector can do it alone.

To be universal, we need to recognise the di­versity of political environments we need the transition to work in – not just across different countries, but as governments change within the same country. So we need to pursue climate action technocrati­cally, not as a social project. There are strong arguments, frequently made, for linking climate action with issues of social justice. But any issue of redistribution can become a game of winners and losers, in which the actors with the most power, and often therefore the greatest need to transi­tion, are those least motivated to join in.

Radical realists recognise the limita­tions of what markets can do, and are honest about the need for public and government involvement

How do radical realists answer the exam question? They recognise the limita­tions of what markets can do beyond the in­cremental, and are honest about the need for public and government involvement. They also recognise that what they need from the public and government is only partly about finance.

It is also about permis­sion to do things differently, in order to un­lock the potential of the solutions we have available. Permission to explore without prejudice the potential for nu­clear energy and genetically modified food. Permission to challenge the countryside idyll of farm­ing animals. To accept some compro­mises that can have a disproportionate impact, such as the transmis­sion lines across the coun­try that a renewable electricity grid would require. To be open to the possibili­ties of carbon capture, even if it is brought to us by the oil and gas companies, who tend to be the firms with the knowhow, assets and re­sources most suited to deliver­ing it. Earning such permission is at the core of the radical realist agenda.

Radical realism may be a new label to de­scribe this mindset, but the mindset itself is already in play. It is there in the tens of new companies developing advanced nuclear technologies.

It is in the U.S. Inflation Re­duction Act’s provisions for funding them.

It is in the vision for using spare shipyard capacity to build produc­tised, floating nu­clear stations that can be taken across the world and moored at any coast, or even used offshore to produce hydrogen or other zero-carbon fuels.

It is in a commercial venture to power Singapore and parts of In­donesia using solar power from northern Australia, deploy­ing the world’s largest so­lar plant, largest battery, and longest sub­marine power cable.

It is in the ‘Climate Prosperity Plans’ proposed by some of the world’s most cli­mate-vulnerable coun­tries – not pleas for reparations based on a sense of fairness, but financeable plans to grow a country’s econ­omy through invest­ments that will also advance the energy transition and build climate resilience.

After wasting crit­ical dec­ades talking about climate change, there is a nat­ural desire to focus now on action, not on ideas. But when our path is not taking us to where we want to go, then tak­ing a moment to rethink what we are doing is the most practical thing we can do to make progress. And when we look through the lens of radical realism, we can see a more promising path already begin­ning to take shape.


Simon Glynn is founder of Zero Ideas, a UK-based charitable organisation to inspire real climate action amongst business leaders. He also advises corporate clients on climate and sustainability. Simon serves on the Advisory Board of RePlanet.

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