Science Weekly

Can degrowth save the climate?

18 min
Feb 26, 2026about 2 months ago
Listen to Episode
Summary

The Guardian's Science Weekly explores whether economic growth can be decoupled from environmental destruction through green growth or degrowth approaches. Two economists debate whether we can grow sustainably through clean technology investment or must scale down energy-intensive industries to meet climate targets.

Insights
  • Current decoupling rates are insufficient - best performing countries would take 200+ years to reach zero emissions at current pace
  • Romania achieved 75% emissions reduction while doubling GDP, proving decoupling is possible but may not be fast enough for climate goals
  • Degrowth advocates argue capitalism misallocates resources toward profitable but harmful production rather than social necessities
  • Both green growth and degrowth approaches agree on need for immediate policy intervention rather than market-driven solutions
  • The wealthy 1% are disproportionately responsible for emissions - millionaires alone could consume 72% of remaining 1.5°C carbon budget
Trends
Post-growth economics gaining mainstream academic and policy attentionShift from 'how to produce clean energy' to 'how much energy do we actually need'Growing focus on energy demand reduction rather than just supply transformationIncreasing scrutiny of GDP as primary economic success metricRising interest in universal basic services and job guarantee programsProgressive taxation being positioned as climate policy toolDemocratic participation in economic planning gaining tractionFour-day work weeks being integrated into climate policy discussions
People
Nick Stern
LSE economics professor advocating for green growth through clean technology investment and decoupling
Jason Hickel
Economic anthropologist promoting degrowth economics and author of 'Less Is More'
Madeline Findlay
Guardian journalist and Science Weekly podcast host moderating the growth vs degrowth debate
Pope Francis
Referenced by Nick Stern for climate leadership and quote about creation and destruction
Thomas Sankara
Revolutionary leader quoted by Hickel on transformative political change and fighting for progress
Quotes
"You can't have infinite growth on a finite planet is in some basic level true, but we're not talking about infinite"
Nick Stern
"At current rates of decoupling, the best performing high income countries will take over 200 years to reach zero emissions"
Jason Hickel
"If we destroy creation, creation will destroy us"
Pope Francis
"We live in a shadow of the world we could have"
Jason Hickel
"Millionaires alone are on track to burn 72% of the remaining carbon budget for 1.5 degrees"
Jason Hickel
Full Transcript
3 Speakers
Speaker A

This is the Guardian. Since the 1960s, global GDP, the main measure of economic growth, has been rapidly rising, taking living standards to a record high. But it's come at a cost, because at the same time, global carbon emissions have been rocketing up too. For years, scientists and economists have been asking, is it possible to grow without heating and polluting the Earth? And if so, can we actually do it as we race towards 2 degrees? The question has come out of niche academic circles and into the mainstream, because if we don't answer it, the planet might for us. So today, as part of the Guardian special Beyond Growth series, what's the future for economic growth? And what would life look like without it? From the Guardian, I'm Madeline Findlay and this is Science Weekly.

0:00

Speaker B

UK GDP figures have hit the wires

1:19

Speaker C

and they look at fourth quarter gdp.

1:22

Speaker A

I want to get your reaction to at today's GDP figures, which show that

1:25

Speaker C

the economy says GDP grew at just 1.4%. Another Democrat shutdown, the first one costing

1:29

Speaker A

us 2 points on GDP, gross domestic product. It's a bit of an obsession for economists and politicians. The number which signals the size of your economy and whether it's growing bigger is better. When it comes to gdp, the higher the number, the more likely there's higher employment salaries and living standards. And that's because it measures what we produce, earn and spend during a specific time. But there's a snag so far in our history. Making and doing more means rising carbon emissions, greater pollution and less biodiversity. And the worse our environmental problems get, the harder it is to argue that we can just keep growing as we are. So is there another way to do it? I went to speak to someone who's been grappling with this question for a long time.

1:36

Speaker B

Hello, I'm Nick Stern. I'm professor of Economics at the London School of Economics. I chair the Global School of Sustainability and the Grantham Research Institute on Climate Change and the Environment. And I'm a crossbench. That means non party member of the House of Lords.

2:31

Speaker A

Two decades ago, Professor Nick Stern wrote a vast and hugely influential report about the economic challenges of the climate crisis and the cost of not acting. He's recently published a book updating some of these. The Growth story of the 21st the economics and Opportunity of Climate Action. One of the first things I wondered was, as many point out, you can't have infinite growth on a finite planet. But growth has brought a lot of benefits to a lot of people. So is there a way to grow the economy without destroying the environment?

2:47

Speaker B

The statement you can't have infinite growth on a finite planet. Is in some basic level. True, but we're not talking about infinite. As Woody Allen said, infinity is a long time, particularly near the end. But putting jokes to one side, we're not talking about infinity. We're talking about the next 20 or 30 years. If we do not act strongly to break the link between the way we do our economic activity, production, consumption, the way we live, and our environment, then we're in deep trouble. You have to invest, and let me say that again, good old university teacher. It's important. Say it twice. You have to invest.

3:25

Speaker A

Nick thinks we need to keep growing our economies so that future generations have the same, if not better, living standards. But to decouple growth from emissions. There are a few key areas to invest in.

4:05

Speaker B

Invest in renewables, including, of course, storage, and including within that, the grids so that you can move stuff around over space and time. Clean electricity is cheaper than the dirty across the world. Second is the transport, particularly public transport in the big growing cities of the world. And the third is the land. At the moment, we have something like seven, $800 billion a year in agricultural subsidies. And what do we get for it? We get degraded land, we get poisoned rivers, we get cut down forests, we get deeply damaged oceans. And there's so much we can do to reform and including investing in, you know, restoring degraded land and forests, managing

4:20

Speaker A

our water systems, much better energy, land and transport. Then there's adaptation, carbon capture and storage, finding efficiency improvements. If we put in a lot of capital, we can stimulate the economy, raise living standards, and have a cleaner environment. It sounds great, except what if we grow the new good stuff without the bad stuff changing? More solar panels and more oil and gas. Nick agreed that there are some industries, like fossil fuels, that would have to be regulated. But right now, he says the focus should be on getting going with the new.

5:04

Speaker B

People think that the only way to save the planet is to consume much less. Well, it could help a little bit from some perspective, but it's a big political turnoff. What we're talking about and investing in the new is actually a growth story, and it needs to be to draw people in, to get them to see what the attraction is of these new ways of doing things. If you build up your public transport, if you enable the cycle lanes and so on, so that the pollution from traffic goes down quickly, then people see the benefits. We know that renewables are cheaper than the fossil fuel electricity. People need to see that in their electricity bills. If they see green spaces in their cities, for example. So they're genuine improvements, I mean, really big improvements. But you have to move quickly and effectively, and you need to be very clear about the kinds of risks that are being radically reduced by strong climate action. So there's a policy challenge and there's a communications challenge.

5:42

Speaker A

And for Nick, the argument's just getting more and more persuasive that green growth is the path forward.

6:44

Speaker B

And it's a paradox really, that every time we look at the science, it looks worse. The severity of events is more extreme, they come through earlier. Every time we look at the technology, it looks better. So essentially we have a good basis for action and it's a very attractive form of action.

6:51

Speaker A

But are there countries that have actually managed to keep growing while substantially bringing down their emissions? One country that's done it faster than anywhere else in Europe, perhaps the world, is Romania. Under the communist dictatorship of Nicolae ceautescu from the 1960s to 1980s, when Romania embarked on a rapid and intensive program of industrialization, becoming dependent on brown coal and heavy oil in the process. Towards the end of the communist era, they entered a period of deep austerity. By the early 2000s, Romania joined the EU. They reduced and modernized their agriculture and shifted to a service based economy. Many citizens suffered in the transition. But as a country, Romania has doubled real GDP since 1990 and emissions have plunged by 75%. It proves pollution and growth can be decoupled. But where does Romania go now? With the low hanging fruit taken care of, can it keep decarbonising while growing? This is the point many countries have now reached. The graphs might be going in the right direction, but total emissions are still still much, much higher than they need to be and they're not falling fast enough.

7:12

Speaker C

In the scientific literature, this is actually not considered green growth. Okay? Because what matters when it comes to climate mitigation is speed. Not just any degree of decarbonization, but decarbonization that's fast enough to achieve the Paris Agreement goals of limiting global warming to 1.5 or no more than 2 degrees. And on that front, we are not doing well at all.

8:35

Speaker A

Professor Jason Hickel is an economic anthropologist at the Autonomous University of Barcelona and visiting senior fellow at the London School of Economics.

8:59

Speaker C

So we recently published a paper in the Lancet showing that at current rates of decoupling, the best performing high income countries will take over 200 years to reach zero emissions, blowing through their fair shares of the Paris Agreement many times over. So there's nothing green about this. Simply achieving Rising GDP and declining emissions is not good enough. And so the question becomes, why are these nations failing, including the uk, failing to achieve sufficiently rapid decarbonization? Again, it's because as they pursue growth, more growth requires energy, and energy use is already too high and making it too difficult for us to decarbonize fast enough.

9:09

Speaker A

Jason is also the author of the book Less Is How Degrowth Will Save the World. It describes one part of an increasingly influential school of economics, Post Growth new models that abandon the goal of constant expansion.

9:48

Speaker C

Growth is simply about increasing industrial production. It doesn't matter what industry it is, whether it's helpful or it's harmful, whether it's tear gas or it's healthcare, all that matters is that it's profitable.

10:04

Speaker A

According to Jason, the problem is, in a capitalist system, production is controlled by those with, well, the capital. That's big banks, big corporations and the wealthiest 1%. Ultimately, they decide what we produce, what our labour looks like and how to use the planet's resources, with the overriding goal of maximising and accumulating profits. And for profits to keep going up, production has to constantly rise too.

10:15

Speaker C

The result is that we end up with, I think, quite irrational forms of production. Right? We get massive overproduction of things like fossil fuels, SUVs, fast fashion mansions and weapons, because these things are obviously highly profitable to capital.

10:43

Speaker A

At the same time, we're overproducing many damaging things we don't really need. We're also underproducing in areas that are much less profitable or aren't profitable to private capital at all, like affordable housing, public transit, transport and renewable energy.

10:59

Speaker C

And this is true even in the uk, which is one of the richest countries in the world. Massive levels of total production, more than 4 million children live in poverty. Right? It's absolutely crazy. And I put it to you that this paradox arises because capital misallocates production primarily towards what's profitable, rather than towards what's most socially necessary.

11:14

Speaker A

This paradox is what Post Growth wants to address with a simple idea. We need to bring down our total energy use, which means de growing or scaling down industries that would be almost impossible to decarbonise, like fossil fuel production, private jets, cruises, fast fashion, throwaway tech with planned obsolescence.

11:34

Speaker C

It's crucial that we think of ways to organize production more around what is most necessary for social and ecological goals that are democratically ratified that we actually want to achieve. Right? So this is a much more rational way to approach the economy and also popular, by the way. We did a recent study that found that large majorities of people in the US and the UK support this alternative vision of the economy.

11:55

Speaker A

But is it possible to degrow while keeping the important benefits of growth we have today?

12:17

Speaker C

Jason in fact, there was a recent study published in Nature that found that using this approach, the UK could reduce its energy use by more more than 50% while improving people's quality of life, which is a dramatic finding. So to me that's quite compelling.

12:23

Speaker A

The study's authors turned the question around from how do we produce enough clean energy? To how much energy do we actually need to live? Well, by looking for energy consumption savings from things like heat pumps, insulation, diet changes and more active travel, they found we could live as well using around 50% less energy.

12:39

Speaker C

It really gives you a sense for how incredibly wasteful our current economy is. Under capitalism. I always say, you know, we live in a shadow of the world we could have.

13:01

Speaker A

Coming up, what would a post growth world actually look like and how do we get there? Just like Nick's version of green growth. Jason's degrowth future sounds great, but how could it work in practice? Jason told me about a few key policies.

13:13

Speaker C

One of them is a public job guarantee. Now the idea here is that anyone who wants to can train and participate in the most important collective projects of our generation. So things like building renewable energy, innovating green technologies, regenerating ecosystems with good wages and workplace democracy. This would permanently abolish involuntary unemployment, enable people to participate in important socially necessary work and ensure good livelihoods for all. And then alongside that, the second thing would be universal public services, such that everyone has access to the core goods and services that we know are necessary for a good life.

13:45

Speaker A

Other post growth policies include things like four day work weeks, regulating commercial banks, investments, maximum income caps and introducing a more progressive tax system.

14:21

Speaker C

We know from scientific evidence that it's the rich who are overwhelmingly responsible for driving climate breakdown. A recent study found that millionaires alone are on track to burn 72% of the remaining carbon budget for 1.5 degrees. And so, as several economists have pointed out, taxing the rich is essential to reducing their consumption of our planet's resources, reducing their consumption of our energy, and it reduces the damage that they inflict on us.

14:33

Speaker A

Despite fundamental disagreements on the principles of capitalism, growth and how we ensure a good life for all, Quite a lot of the short term green growth and degrowth policies aren't so different. And there's one thing they're both advocating strongly for. For us to take the wheel now, rather than letting the climate Crisis and free markets dictate where we end up. As it stands, it's getting harder and harder to reach our agreed destination. Global carbon emissions would need to fall by 45% by 2030 to keep to 1.5 degrees C. How do we get back on track, or at least closer?

14:58

Speaker C

Jason, political reform is absolutely required in order to better represent people's aspirations. On this front, there's actually a lot of hope. Indeed, there's a statement from Thomas Sankara, the revolutionary leader of Burkina Faso in the 1980s, who used to say, we are the heirs of the world's revolutions. Like all of the rights that we have, all of the good things that we have, they were not handed down benevolently by capital. We fought to achieve them. And if we've been able to transform the world in the past, then there's no way that we cannot do it again now. And I think that's exactly the kind of ambition that is required.

15:42

Speaker A

Back to Nick.

16:15

Speaker B

We need good evidence, which we've got. We need good communicators, and we need leadership from those who can. Pope Francis was tremendous on this issue, and he said, if we destroy creation, creation will destroy us. Regardless what you think about creation, what he's saying is crystal clear which economic

16:16

Speaker A

model would work best in reality? Well, that's an argument for the economists, but both Jason and Nick agree we're in big trouble if our growth keeps blasting through the Earth's natural limits.

16:37

Speaker C

I just don't think that this is a future that we can tolerate. And we must do everything possible to fight for something better.

16:50

Speaker B

Delay is dangerous in the indigo gangetic plane. Probably 20 years from now, there'll be several extended periods of more than 50 degrees centigrade that kills you. Right? And they're talking about hundreds of millions of people. You're talking about Southern Europe looking like the Sahara Desert. Perhaps billions of people would have to move in the second half of this century. Some of the essentially climate deniers, net zero antagonists, are also people who seem to care about immigration, at least I believe so. You read what they write or say. Well, in the words of Ronnie Reagan, they ain't seen nothing yet.

16:55

Speaker A

A big thanks to Professors Jason Hickle and Nick Stern. You can find all the articles in the beyond growth series on theguardian.com and that's all from us today. This episode was produced by me, Madeline Finley. The sound design was by Ross Burns, and the executive producer was Ellie Burey. We'll be back on Tuesday. See you then. This is the Guardian.

17:38