The affluent citizens of the world are responsible for most environmental impacts and are central to any future prospect of retreating to safer environmental conditions. Any transition towards sustainability can only be effective if far-reaching lifestyle changes complement technological advancements. The wealthiest 0.54%, about 40 million people, are responsible for 14% of lifestyle-related greenhouse gas emissions, while the bottom 50% of income earners, almost 4 billion people, only emit around 10%.
Lloyd Alter, July 6, 2020, Treehugger.com
Some readers were outraged at our recent coverage of a study, “Scientists’ warning on affluence,” which could be summarized in a few words: “Consumption is a direct result of affluence, and CO2 is a direct result of consumption.” So please consider this a trigger warning: Another new study, “The unequal distribution of household carbon footprints in Europe and its link to sustainability,” looks at the wild disparity in carbon emissions between the rich and the poor, even in the “socialist” European Union.
The authors, Diana Ivanova and Richard Wood, start from the same position that we do with our 1.5-degree lifestyle: that if we are going to keep the average warming of the planet below 1.5 degrees, then we have to reduce our per-capita emissions to 2.5 tonnes by 2030. Worldwide, the average now is 3.4 tCO 2eq/cap (Tonnes CO2 equivalent per capita, which we will just call tonnes). However, the rich produce a lot more carbon; a super-rich household pushes out about 130 tonnes. There might not be many of them, but their impact is huge. The not so super-rich, the top 10% of GHG (greenhouse gas) emitters make up 34–45% of annual GHG emissions globally.
It’s Up in the Air
But what is really extraordinary is how the rich generate their carbon – of the 43.1 tonnes that the average Euro one-percenter generates per year, 22.6 tonnes is from flying. Among the top 10%, land travel dominates, generating 32% of their carbon footprint. And this is all in Europe; imagine what the numbers might be in North America where the driving and flying distances are so much greater. The authors conclude that more attention should be paid to the issues of emissions from air and land transport, and to the fairness and equity of it all.
The EU top 1% emit 55 tCO2 eq/cap on average, more than 22 times the 2.5-tonne target. Aviation particularly stands out, with a substantial carbon contribution and the highest expenditure elasticities for the highest emitters. The EU top 1% of households have an average CF share associated with air travel of 41%, making air travel the consumption category with the highest carbon contribution among the top emitters. Package holidays and air transport are luxury items with high energy intensity… This lack of policy focus on high-carbon polluting activities of high-income actors – who have both high responsibility and capacity for climate change mitigation – raises substantial ethical and equity concerns.
And notwithstanding all those trains and bikes,
Land travel drives 21% and 32% of the average CF of the EU top 1% and top 10% of households, respectively. Radical emission reductions in this category require decreases in the number of vehicles and travel distance and the shift to low-carbon transport modes. Research on car dependence exposes the difficulty of moving away from a car-dominated, high-carbon transport system and draws attention to the political-economic factors underpinning that dependence.
The fact remains that even in a wealthy, developed part of the world like EU that many of our readers would dismiss as socialist, the top 10% emit more carbon than the bottom 50%, and so much of it is from driving and that most elastic source of carbon emissions, flying. Yet jet fuel isn’t even taxed, a giant subsidy to the rich; essentially, conspicuous consumption is being encouraged. The authors do have recommendations for changing the lifestyles of the rich and famous:
There is robust evidence that overconsumption and materialistic practices are not only damaging for the environment but may also reduce psychological well-being… Redesigning consumption practices, public spaces, and social structures through voluntary simplicity and sharing may reconcile lower carbon emissions and higher well-being. Collective solutions and investment in social infrastructure hold potential to deliver the social services necessary for human well-being in coherence with the principles of equity, efficiency, solidarity, and sustainability.
In other words, spending less is good for your health, your community, and your carbon footprint. Don’t eat the rich, just share their lunch.
This is not the first time we have noted this; see also The World’s Richest 10% Emit up to 43% of the Carbon and Are the Rich Responsible for Climate Change?
Source: The unequal distribution of household carbon footprints in Europe and its link to sustainability Diana Ivanova (a1) (a2) and Richard Wood (a2) DOI: https://doi.org/10.1017/sus.2020.12, published online by Cambridge University Press: 06 July 2020
The distribution of household carbon footprints is largely unequal within and across countries. Here, we explore household-level consumption data to illustrate the distribution of carbon footprints and consumption within 26 European Union countries, regions and social groups. The analysis further sheds light on the relationships between carbon footprints and socially desirable outcomes such as income, equality, education, nutrition, sanitation, employment and adequate living conditions.
By Lloyd Alter, Treehugger, updated July 01, 2020
There are two ways to think about carbon emissions; one is production, which measures the CO2 emissions of each country (and where most nations have agreed to reductions under the Paris Accord).
But if I buy a Haier air conditioner or a Samsung washing machine, who is responsible for all of the upfront carbon emissions that came from manufacturing them, or the raw materials that went into them? Should it accrue to China and South Korea or to me in North America? After all, they are making the stuff that I want and I am buying. That’s why measuring consumption is, I believe, a more sensible method of accounting for carbon emissions.
Follow the Money
A new study, Scientists’ warning on affluence, demonstrates what a big problem our increasing consumption actually is. Even as our homes and cars become more efficient, we buy more and bigger stuff. Study authors Thomas Wiedman, Julia K. Steinberger, Manfred Lenzen, and Lorenz Keyßer blame the rich:
The affluent citizens of the world are responsible for most environmental impacts and are central to any future prospect of retreating to safer environmental conditions. Any transition towards sustainability can only be effective if far-reaching lifestyle changes complement technological advancements.
The authors note (as we do in our 1.5 degree lifestyle series) that “consumers are the ultimate drivers of production, with their purchasing decisions setting in motion a series of trade transactions and production activities, rippling along complex international supply-chain networks.” It isn’t the entire picture; the consumers do not have control of the choices made by the manufacturers, and one South Korean clothes dryer can be a lot greener than the next, both in its manufacture and its operation. But the consumer is the one who makes the decision to buy a dryer in the first place, or whether just to use a clothesline.
In fact, as this graph shows, there has been some progress in reducing the carbon intensity of what we do; the Global GDP and the Global Material Footprint (equal to all our material extraction) is diverging a bit from the CO2 FFI (fossil fuel and industrial processes) but being more carbon-efficient isn’t enough; it is still going up. It has to go down.
The problem is that the world is getting richer, and when people get money they buy stuff. They travel. Consumption is a direct result of affluence, and CO2 is a direct result of consumption. The authors note:
Since income is strongly linked with consumption, and consumption is in turn linked with impact we can expect existing income inequalities to translate into equally significant impact inequalities…. the world’s top 10% of income earners are responsible for between 25 and 43% of environmental impact. In contrast, the world’s bottom 10% income earners exert only around 3–5% of environmental impact. These findings mean that environmental impact is to a large extent caused and driven by the world’s rich citizens.
At the extremes, the numbers are even more outrageous:
The wealthiest 0.54%, about 40 million people, are responsible for 14% of lifestyle-related greenhouse gas emissions, while the bottom 50% of income earners, almost 4 billion people, only emit around 10%.
Simply greening our manufacturing or changing our fuel sources doesn’t change the larger picture, that “the worldwide growth in affluence has consistently outpaced these gains, driving all the impacts back up.”
Reduce Consumption, Don’t Just “Green” It
The authors conclude that the only way to address the issue is by reducing consumption, “not just greening it.”
Avoiding consumption means not consuming certain goods and services, from living space (overly large homes, secondary residences of the wealthy) to oversized vehicles, environmentally damaging and wasteful food, leisure patterns and work patterns involving driving and flying.
The COVID-19 lockdown really put paid to Elizabeth Warren’s idea that “70% of the pollution, of the carbon that we’re throwing into the air, comes from three industries.” (Those being the building industry, the electric power industry, and the oil industry.) When we stopped consuming, they all started emitting less and big fracking players like Chesapeake went bust. A lot of airlines and builders are going to follow. Kill consumption and you kill emissions.
Among other things that the authors point out is the need for “the adoption of less affluent, simpler and sufficiency-oriented lifestyles to address overconsumption – consuming better but less.”
Sufficiency Before Efficiency
Sufficiency is a subject dear to our Treehugger hearts, but as I have often noted, it is a tough sell; rich people would rather have solar shingles, powerwalls, and electric cars, when a sufficient lifestyle would be very different.
Sufficiency vs efficiency is what we have been talking about on TreeHugger for years; live in smaller spaces, in walkable neighborhoods where you can bike instead of drive. Our posts on Teslas are more popular.
The study authors call for radical change, to “strengthen equality and redistribution through suitable taxation policies, basic income, and job guarantees and by setting maximum income levels, expanding public services and rolling back neoliberal reforms.” This is also a tough sell. In their summary article in The Conversation titled Affluence is killing the planet, warn scientists the authors are less radical and more Treehugger:
Ultimately, the goal is to establish economies and societies that protect the climate and ecosystems and enrich people with more wellbeing, health and happiness instead of more money.
There are a number of ways to get people to reduce their consumption and carbon emissions; global pandemics have been shown to work well, as do depressions and economic collapse. The authors are pointing to a Wellbeing Economy, but I like to direct our attention to a sufficiency economy, like the kind you get when people live a 1.5 degree lifestyle. It’s better than the alternatives.
** Published: 19 June 2020 Scientists’ warning on affluence
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For over half a century, worldwide growth in affluence has continuously increased resource use and pollutant emissions far more rapidly than these have been reduced through better technology. The affluent citizens of the world are responsible for most environmental impacts and are central to any future prospect of retreating to safer environmental conditions. We summarise the evidence and present possible solution approaches. Any transition towards sustainability can only be effective if far-reaching lifestyle changes complement technological advancements. However, existing societies, economies and cultures incite consumption expansion and the structural imperative for growth in competitive market economies inhibits necessary societal change.
Recent scientists’ warnings confirm alarming trends of environmental degradation from human activity, leading to profound changes in essential life-sustaining functions of planet Earth1,2,3. The warnings surmise that humanity has failed to find lasting solutions to these changes that pose existential threats to natural systems, economies and societies and call for action by governments and individuals.
The warnings aptly describe the problems, identify population, economic growth and affluence as drivers of unsustainable trends and acknowledge that humanity needs to reassess the role of growth-oriented economies and the pursuit of affluence1,2. However, they fall short of clearly identifying the underlying forces of overconsumption and of spelling out the measures that are needed to tackle the overwhelming power of consumption and the economic growth paradigm4.
This perspective synthesises existing knowledge and recommendations from the scientific community. We provide evidence from the literature that consumption of affluent households worldwide is by far the strongest determinant and the strongest accelerator of increases of global environmental and social impacts. We describe the systemic drivers of affluent overconsumption and synthesise the literature that provides possible solutions by reforming or changing economic systems. These solution approaches range from reformist to radical ideas, including degrowth, eco-socialism and eco-anarchism. Based on these insights, we distil recommendations for further research in the final section.
Affluence as a driver of environmental and social impacts
The link between consumption and impacts
There exists a large body of literature in which the relationship between environmental, resource and social impacts on one hand, and possible explanatory variables on the other, is investigated. We review and summarise those studies that holistically assess the impact of human activities, in the sense that impacts are not restricted to the home, city, or territory of the individuals, but instead are counted irrespective of where they occur. Such an assessment perspective is usually referred to as consumption-based accounting, or footprinting5.
Allocating environmental impacts to consumers is consistent with the perspective that consumers are the ultimate drivers of production, with their purchasing decisions setting in motion a series of trade transactions and production activities, rippling along complex international supply-chain networks5. However, allocating impacts to consumers does not necessarily imply a systemic causal understanding of which actor should be held most responsible for these impacts. Responsibility may lie with the consumer or with an external actor, like the state, or in structural relations between actors. Scholars of sustainable consumption have shown that consumers often have little control over environmentally damaging decisions along supply chains6, however they often do have control over making a consumption decision in the first place. Whilst in Keynesian-type economics consumer demand drives production, Marxian political economics as well as environmental sociology views the economy as supply dominated7. In this paper, we highlight the measurement of environmental impacts of consumption, while noting that multiple actors bear responsibility.
Holistic studies of the environmental or social consequences of consumption usually involve the use of life-cycle assessment or input-output analysis that do not only account for direct (on-site, within-territory) but importantly also include indirect impacts occurring along global and complete supply chains8,9. The use of such methods is important, because failing to detect the outsourcing of indirect impacts (also called spill overs or leakage) has the potential to seriously undermine global environmental abatement efforts, e.g. on climate change10.
A significant proportionality between consumption and impact exists for a large range of environmental, resource and social indicators. The implications of consumption on scarce energy resources emerged already in the 1970s and was confirmed by many consumption-based analyses on indicators as varied as CO2 emissions, raw materials, air pollution, biodiversity, nitrogen emissions, scarce water use or energy5,11. Many of these studies employed multiple regression or similar techniques, yielding clear evidence for our first finding: that consumption is by far the strongest determinant of global impacts, dwarfing other socio-economic–demographic factors such as age, household size, qualification or dwelling structure12,13,14,15. Whilst the strength of the proportionality between consumption and impact decreases slightly towards higher incomes (measured by so-called elasticities), consumption was found to be a consistently positive driver. In other words, the impact intensity of consumption decreases, but absolute impacts increase towards higher consumption. Absolute decoupling, let alone an inverted-U-type Kuznets relationship, does not occur from a consumption-based accounting perspective11,16,17.
For some social indicators, causal associations between consumption and impact are weak or non-existent. For example, withdrawing consumption from countries with unequal wages, child labour, corruption or severe occupational hazards may not influence those conditions, and might even exacerbate social problems. Footprint studies on these indicators nevertheless characterise consumers of commodities from socially problematic origins as being implicated with detrimental impacts9,18,19,20.
Many indicators of global environmental and social impacts have been monitored over time, and time series data exist5. Numerous global studies decomposing time series of footprints of consumption into drivers of trends have been carried out over the past decades, for example on greenhouse-gas emissions, energy use, water use, materials or mercury emissions. These studies routinely decompose global impact trends into effects due to changes in a number of factors, such as technology, the input structure of production, the product mix in consumer demand, the level of per-capita consumption or population21.
The majority of studies agree that by far the major drivers of global impacts are technological change and per-capita consumption11. Whilst the former acts as a more or less strong retardant, the latter is a strong accelerator of global environmental impact. Remarkably, consumption (and to a lesser extent population) growth have mostly outrun any beneficial effects of changes in technology over the past few decades. These results hold for the entire world22,23 as well as for numerous individual countries11,24,25,26. Figure 1 shows the example of changes in global-material footprint and greenhouse-gas emissions compared to GDP over time. The overwhelming evidence from decomposition studies is that globally, burgeoning consumption has diminished or cancelled out any gains brought about by technological change aimed at reducing environmental impact11.
Furthermore, low-income groups are rapidly occupying middle- and high-income brackets around the world. This can potentially further exacerbate the impacts of mobility-related consumption, which has been shown to disproportionately increase with income (i.e. the elasticity is larger than one27). This means that if consumption is not addressed in future efforts for mitigating environmental impact, technological solutions will face an uphill battle, in that they not only have to bring about reductions of impact but will also need to counteract the effects of growing consumption and affluence28,29.
To avoid further deterioration and irreversible damage to natural and societal systems, there will need to be a global and rapid decoupling of detrimental impacts from economic activity. Whilst a number of countries in the global North have recently managed to reduce greenhouse-gas emissions while still growing their economies30, it is highly unlikely that such decoupling will occur more widely in the near future, rapidly enough at global scale and for other environmental impacts11,17. This is because renewable energy, electrification, carbon-capturing technologies and even services all have resource requirements, mostly in the form of metals, concrete and land31. Rising energy demand and costs of resource extraction, technical limitations and rebound effects aggravate the problem28,32,33. It has therefore been argued that “policy makers have to acknowledge the fact that addressing environmental breakdown may require a direct downscaling of economic production and consumption in the wealthiest countries”17,p.5. We will address this argument in the section on systemic drivers and possible solutions.
In what follows, we will explain why we characterise consumption as affluence. Inequality is commonly described by the Gini index, with 0 characterising total equality (all individuals equal) and 100 representing total inequality (one individual owning everything). World countries’ Gini indices of income inequality range between 25 (Scandinavia) and 63 (Southern Africa)34. The world’s Gini index of income inequality is around 75, higher than the corresponding index of any national population. Simply put, the world as a whole is more unequal than any individual country.
Since income is strongly linked with consumption, and consumption is in turn linked with impact (see previous section), we can expect existing income inequalities to translate into equally significant impact inequalities. Indeed, environmental, resource and social impacts are exerted unequally across the world population. Teixido-Figueras et al.35 report that international Gini coefficients for CO2 emissions, material consumption and net primary productivity (both measured from a production and consumption perspective) range between 35 and 60. These values mean that the world’s top 10% of income earners are responsible for between 25 and 43% of environmental impact. In contrast, the world’s bottom 10% income earners exert only around 3–5% of environmental impact35. These findings mean that environmental impact is to a large extent caused and driven by the world’s rich citizens36. Considering that the lifestyles of wealthy citizens are characterised by an abundance of choice, convenience and comfort, we argue that the determinant and driver we have referred to in previous sections as consumption, is more aptly labelled as affluence.
Teixido-Figueras et al.35 also find that carbon emissions and material use are globally more unequally distributed when accounted for as footprints. In contrast to territorial allocations, footprints attribute environmental burdens to the final consumer, no matter where the initial environmental pressure has occurred. Here, international trade is responsible for shifting burdens from mostly low-income developing-world producers to high-income developed-world consumers37. This phenomenon of outsourcing appears to exacerbate global disparities, at least in carbon emissions and material use contexts.
Systemic drivers and possible solutions
As the previous section shows, there is a positive relationship between biophysical resource use and affluence, as defined by income. Adding to this, the most affluent groups have higher incomes than expenditure, and their saving and investing leads to substantial additional environmental impact38. Therefore, and due to significant inter- and intra-national wealth and income inequality36,39, we differentiate between globally affluent groups, such as the European Union, and the most wealthy and affluent groups within countries, e.g. the <1–10% richest income segments36. As quantitative research36,40,41 shows, highly affluent consumers drive biophysical resource use (a) directly through high consumption, (b) as members of powerful factions of the capitalist class and (c) through driving consumption norms across the population. The next sections focus on affluent groups globally and on the intra-nationally most wealthy and affluent segments (hereafter called super-affluent).
Since the level of consumption determines total impacts, affluence needs to be addressed by reducing consumption, not just greening it17,28,29. It is clear that prevailing capitalist, growth-driven economic systems have not only increased affluence since World War II, but have led to enormous increases in inequality, financial instability, resource consumption and environmental pressures on vital earth support systems42. A suitable concept to address the ecological dimension is the widely established avoid-shift-improve framework outlined by Creutzig et al.43. Its focus on the end-use service, such as mobility, nutrition or shelter, allows for a multi-dimensional analysis of potential impact reductions beyond sole technological change. This analysis can be directed at human need satisfaction or decent living standards—an alternative perspective put forward for curbing environmental crises44,45. Crucially, this perspective allows us to consider different provisioning systems (e.g. states, markets, communities and households) and to differentiate between superfluous consumption, which is consumption that does not contribute to needs satisfaction, and necessary consumption which can be related to satisfying human needs. It remains important to acknowledge the complexities surrounding this distinction, as touched upon in the sections on growth imperatives below. Still, empirically, human needs satisfaction shows rapidly diminishing returns with overall consumption45,46.
As implied by the previous section on affluence as a driver, the strongest pillar of the necessary transformation is to avoid or to reduce consumption until the remaining consumption level falls within planetary boundaries, while fulfilling human needs17,28,46. Avoiding consumption means not consuming certain goods and services, from living space (overly large homes, secondary residences of the wealthy) to oversized vehicles, environmentally damaging and wasteful food, leisure patterns and work patterns involving driving and flying47. This implies reducing expenditure and wealth along ‘sustainable consumption corridors’, i.e. minimum and maximum consumption standards48,49 (Fig. 2). On the technological side, reducing the need for consumption can be facilitated by changes such as increasing lifespans of goods, telecommunication instead of physical travel, sharing and repairing instead of buying new, and house retrofitting43.
However, the other two pillars of shift and improve are still vital to achieve the socio-ecological transformation46. Consumption patterns still need to be shifted away from resource and carbon-intensive goods and services, e.g. mobility from cars and airplanes to public buses and trains, biking or walking, heating from oil heating to heat pumps, nutrition—where possible—from animal to seasonal plant-based products43,46. In some cases this includes a shift from high- to low-tech (with many low-tech alternatives being less energy intense than high-tech equivalents, e.g. clothes line vs. dryer) and from global to local47. In parallel, also the resource and carbon intensity of consumption needs to be decreased, e.g. by expanding renewable energy, electrifying cars and public transport and increasing energy and material efficiency43,46.
The avoid-shift-improve framework, coherently applied with a dominant avoid and strong shift, implies the adoption of less affluent, simpler and sufficiency-oriented lifestyles to address overconsumption—consuming better but less46,47,49,50. This also includes addressing socially unsustainable underconsumption in impoverished communities in both less affluent and affluent countries, where enough and better is needed to achieve a more equal distribution of wealth and guarantee a minimum level of prosperity to overcome poverty48,49. Thus, establishing a floor-and-ceiling strategy of sustainable consumption corridors is necessary48,49 (Fig. 2).
It is well established that at least in the affluent countries a persistent, deep and widespread reduction of consumption and production would reduce economic growth as measured by gross domestic product (GDP)51,52. Estimates of the needed reduction of resource and energy use in affluent countries, resulting in a concomitant decrease in GDP of similar magnitude, range from 40 to 90%53,54. Bottom-up studies, such as from Rao et al.55 show that decent living standards could be maintained in India, Brazil and South Africa with around 90% less per-capita energy use than currently consumed in affluent countries. Trainer56, for Australia, and Lockyer57, for the USA, find similar possible reductions. In current capitalist economies such reduction pathways would imply widespread economic recession with a cascade of currently socially detrimental effects, such as a collapse of the stock market, unemployment, firm bankruptcies and lack of credit50,58. The question then becomes how such a reduction in consumption and production can be made socially sustainable, safeguarding human needs and social function50,59 However, to address this question, we first need to understand the various growth imperatives of capitalist social and economic systems and the role of the super-affluent segments of society60.
Super-affluent consumers and growth imperatives
Growth imperatives are active at multiple levels, making the pursuit of economic growth (net investment, i.e. investment above depreciation) a necessity for different actors and leading to social and economic instability in the absence of it7,52,60. Following a Marxian perspective as put forward by Pirgmaier and Steinberger61, growth imperatives can be attributed to capitalism as the currently dominant socio-economic system in affluent countries7,51,62, although this is debated by other scholars52. To structure this topic, we will discuss different affected actors separately, namely corporations, states and individuals, following Richters and Siemoneit60. Most importantly, we address the role of the super-affluent consumers within a society, which overlap with powerful fractions of the capitalist class. From a Marxian perspective, this social class is structurally defined by its position in the capitalist production process, as financially tied with the function of capital63. In capitalism, workers are separated from the means of production, implying that they must compete in labour markets to sell their labour power to capitalists in order to earn a living.
Even though some small- and medium-sized businesses manage to refrain from pursuing growth, e.g. due to a low competition intensity in niche markets, or lack of financial debt imperatives, this cannot be said for most firms64. In capitalism, firms need to compete in the market, leading to a necessity to reinvest profits into more efficient production processes to minimise costs (e.g. through replacing human labour power with machines and positive returns to scale), innovation of new products and/or advertising to convince consumers to buy more7,61,62. As a result, the average energy intensity of labour is now twice as high as in 195060. As long as a firm has a competitive advantage, there is a strong incentive to sell as much as possible. Financial markets are crucial to enable this constant expansion by providing (interest-bearing) capital and channelling it where it is most profitable58,61,63. If a firm fails to stay competitive, it either goes bankrupt or is taken over by a more successful business. Under normal economic conditions, this capitalist competition is expected to lead to aggregate growth dynamics7,62,63,65.
However, two factors exist that further strengthen this growth dynamic60. Firstly, if labour productivity continuously rises, then aggregate economic growth becomes necessary to keep employment constant, otherwise technological unemployment results. This creates one of the imperatives for capitalist states to foster aggregate growth, since with worsening economic conditions and high unemployment, tax revenues shrink, e.g. from labour and value-added taxes, while social security expenditures rise60,62. Adding to this, states compete with other states geopolitically and in providing favourable conditions for capital, while capitalists have the resources to influence political decisions in their favour. If economic conditions are expected to deteriorate, e.g. due to unplanned recession or progressive political change, firms can threaten capital flight, financial markets react and investor as well as consumer confidence shrink51,58,60. Secondly, consumers usually increase their consumption in tune with increasing production60. This process can be at least in part explained by substantial advertising efforts by firms47,52,66. However, further mechanisms are at play as explained further below.
Following this analysis, it is not surprising that the growth paradigm is hegemonic, i.e. the perception that economic growth solves all kinds of societal problems, that it equals progress, power and welfare and that it can be made practically endless through some form of supposedly green or sustainable growth59. Taken together, the described dynamics create multiple dependencies of workers, firms and states on a well-functioning capital accumulation and thus wield more material, institutional and discursive power (e.g. for political lobbying) to capitalists who are usually the most affluent consumers61,67. Even if different fractions of the capitalist class have manifold and competing interests which need to be constantly renegotiated, there is a common interest in maintaining the capitalist system and favourable conditions for capital accumulation, e.g. through aggregate growth and high consumption51,62. How this political corruption by the super-affluent plays out in practice is well documented, e.g. for the meat industry in Denmark6.
Super-affluent consumers drive consumption norms
Growth imperatives and drivers (with the latter describing less coercive mechanisms to increase consumption) can also be active at the individual level. In this case, the level of consumption can serve as a proxy47,60,68. To start with, individual consumption decisions are not made in a vacuum, but are shaped by surrounding (physical and social) structures and provisioning systems47,61,69. Sanne66 and Alexander47 discuss several structural barriers to sufficiency-oriented lifestyles, locking in high consumption. These include lack of suitable housing, insufficient options for socialising, employment, transport and information, as well as high exposure to consumer temptations. Often, these conditions are deliberately fostered by states and also capitalists (the latter overlapping with super-affluent consumers and having disproportionate influence on states) to increase consumption61,66.
Further active mechanisms to spur growth include positional and efficiency consumption, which contribute to an increase in consumption overall52,60,68,70. After basic material needs are satisfied, an increasing proportion of consumption is directed at positional goods52,70. The defining feature of these goods is that they are expensive and signify social status. Access to them depends on the income relative to others. Status matters, since empirical studies show that currently relative income is one of the strongest determinants of individual happiness52. In the aggregate however, the pursuit of positional consumption, driven by super-affluent consumers and high inequalities, likely resembles a zero-sum game with respect to societal wellbeing70,71. With every actor striving to increase their position relative to their peers, the average consumption level rises and thus even more expensive positional goods become necessary, while the societal wellbeing level stagnates42,71. This is supported by a large body of empirical research, showing that an individual’s happiness correlates positively with their own income but negatively with the peer group’s income71 and that unequal access to positional goods fosters rising consumption52. This endless process is a core part of capitalism as it keeps social momentum and consumption high with affluent consumers driving aspirations and hopes of social ascent in low-affluence segments70,72. The positional consumption behaviour of the super-affluent thus drives consumption norms across the population, for instance through their excessive air travel, as documented by Gössling73.
Lastly, in capitalism, workers must compete against each other in the labour market in order to earn a living from capitalists7,63. Following Siemoneit68, this can lead to a similar imperative to net invest (increase the level of consumption/investment) as is observed with capitalists. In order to stay competitive, individuals are pushed to increase time and cost efficiency by investing in cars, kitchen appliances, computers and smartphones, by using social media and online trade etc. This efficiency consumption—effectively another facet of the rebound effect38,47,68—helps to manage high workloads, thus securing an income, while maintaining private life. This is often accompanied by trends of commodification61, understood as the marketisation of products and services which used to be provisioned through more time-intensive commons or reciprocal social arrangements, e.g. convenience food vs. cooking together. As in the food example74, this replacement of human labour with energy- and material-intensive industrial production typically increases environmental pressures47,75. Through these economic pressures, positive feedback loops and lock-ins are expected to emerge, since other consumers need to keep up with these investments or face disadvantages, e.g. when car or smartphone ownership become presupposed. Taken together with positional consumption, structural barriers to sufficiency and the substantial advertising efforts by capitalists, these mechanisms explain to a large extent why consumers seem so willing to increase their consumption in accordance with increasing production60.
In response to the aforementioned drivers of affluence, diverse solution approaches and strategies are being discussed47,52,76. We differentiate these as belonging to a more reformist and a more radical group (Table 1). This is based on the categorisation by Alexander and Rutherford77. All these approaches differ from the established green growth (ecomodernism) approach28,78,79, in that they at least adopt an agnostic, if not negative, position on the question whether or not GDP can be sufficiently decoupled from environmental impacts28,52,78,80. Hence, these approaches also differ from the Sustainable Development Goals (SDGs), since SDG 8 aims for continued global GDP growth of ~3% p.a., likely contradicting several other SDGs, e.g. SDG 12 and 1381,82,83. Further, the SDGs are not representing a theoretically coherent framework, since they are part of a deliberative process45, and sideline underlying power dynamics as well as interactions between injustices83. Nevertheless, approaches underpinned by multi-dimensional social wellbeing and environmental goals, such as Kate Raworth’s Doughnut Economics84, are strong alternatives to GDP-focused ones and may inspire transformative change in the context of the more reformist solution approaches outlined below. Importantly, the following discussion can only provide a rough overview of the respective approaches.Table 1 Meta approaches for sustainable prosperity.Full size table
The reformist group consists of heterogeneous approaches such as a-growth80, precautionary/pragmatic post-growth52, prosperity42 and managing85 without growth as well as steady-state economics86. These approaches have in common that they aim to achieve the required socio-ecological transformation through and within today’s dominant institutions, such as centralised democratic states and market economies52,77. From this position it often follows that current, socially vital institutions, such as the welfare state, labour markets, healthcare, pensions and others, need to be reformed to become independent from GDP growth52. Generally, bottom-up movements are seen as crucial, leading to value and cultural changes towards sufficiency42,47. Eventually, however, significant policy changes are proposed to achieve the necessary downshifting of consumption and production42,77,86 and/or the reduction of environmental impacts through decoupling52,80. These include, among others, stringent eco-taxes or cap-and trade systems, directed investments in green industries and public institutions, wealth redistribution through taxation and a maximum income, a guaranteed basic income and/or reduced working hours42,77. Although these policies already seem radical when compared to today’s policies, the proponents of reformist approaches are convinced that the transformation can be achieved in current capitalist economies and democratic states42,77,86.
The second, more radical, group disagrees and argues that the needed socio-ecological transformation will necessarily entail a shift beyond capitalism and/or current centralised states. Although comprising considerable heterogeneity77, it can be divided into eco-socialist approaches, viewing the democratic state as an important means to achieve the socio-ecological transformation51,65 and eco-anarchist approaches, aiming instead at participatory democracy without a state, thus minimising hierarchies54,87. Many degrowth approaches combine elements of the two, but often see a stronger role for state action than eco-anarchists50,51,88. Degrowth is defined here as “an equitable downscaling of throughput [that is the energy and resource flows through an economy, strongly coupled to GDP], with a concomitant securing of wellbeing“59,p7, aimed at a subsequent downscaled steady-state economic system that is socially just and in balance with ecological limits. Importantly, degrowth does not aim for a reduction of GDP per se, but rather accepts it as a likely outcome of the necessary changes78. Moreover, eco-feminist approaches highlight the role of patriarchal social relations and the parallels between the oppression of women and exploitation of nature89, while post-development approaches stress the manifold and heterogeneous visions of achieving such a socio-ecological transformation globally, especially in the global South90.
Degrowth advocates propose similar policy changes as the reformist group50,80. However, it is stressed that implementing these changes would most likely imply a shift beyond capitalism, e.g. preventing capital accumulation through dis-economies of scale and collective firm ownership, and thus require radical social change59,62,91. Eco-socialists usually focus more on rationing, planning of investments and employment, price controls and public ownership of at least the most central means of production to plan their downscaling in a socially sustainable way65,77.
Both groups agree on the crucial role of bottom-up movements to change culture and values, push for the implementation of these top-down changes and establish parts of the new economy within the old47,50. Finally, eco-anarchists do not view the state as a central means to achieve the socio-ecological transformation. Instead, they stress the role of bottom-up grassroots initiatives, such as transition initiatives and eco-villages, in prefiguring the transformation as well as cultural and value changes as a necessary precondition for wider radical change. With these initiatives scaling up, the state might get used to remove barriers and to support establishing a participatory-democratic and localised post-capitalist economy54,77.
In summary, there seems to be some strategic overlap between reformist and the more radical eco-anarchist and eco-socialist approaches, at least in the short term77. The question remains how these solution approaches help in overcoming the capitalist dynamics previously outlined, since here bottom-up and governmental action seem to be limited. It is important to recognise the pivotal role of social movements in this process, which can bring forward social tipping points through complex, unpredictable and reinforcing feedbacks92,93 and create windows of opportunity from crises77,94.
New research directions
The evidence is clear. Long-term and concurrent human and planetary wellbeing will not be achieved in the Anthropocene if affluent overconsumption continues, spurred by economic systems that exploit nature and humans. We find that, to a large extent, the affluent lifestyles of the world’s rich determine and drive global environmental and social impact. Moreover, international trade mechanisms allow the rich world to displace its impact to the global poor. Not only can a sufficient decoupling of environmental and detrimental social impacts from economic growth not be achieved by technological innovation alone, but also the profit-driven mechanism of prevailing economic systems prevents the necessary reduction of impacts and resource utilisation per se.
In this context, the digital revolution—and more broadly the Fourth Industrial Revolution (FIR) with converging, step-change innovations in digital technology, artificial intelligence, Internet of Things, 3D-printing, biotechnology and nanotechnology—has been touted as an enabler of absolute decoupling through sheer exponential efficiency gains95. While digitalisation is already a key driving force in societal transformation, it has so far led to more consumption and inequality and remained coupled with the indirect use of energy and materials, therefore sustaining resource-intensive and greenhouse-gas growth patterns at the macro-economic level17,96. While the digital revolution undoubtedly increases labour productivity—demonstrated by individual leading businesses showing a strong productivity paradox—it remains to be seen whether the same is true for resource productivity, and this will depend on governance and regulation. Even if the FIR were to achieve absolute decoupling, this would come at a potentially high risk for privacy, liberty, data sovereignty, civic rights, security, equality and democracy96,97.
What is needed are convincing and viable solutions at the systems level that can be followed. We call for the scientific community across all disciplines to identify and support solutions with multidisciplinary research, for the public to engage in broad discussions about solutions and for policy makers to implement and enable solutions in policy processes. Based on the literature reviewed above we identify the following areas in need of further research. This list is not exhaustive or even fully conclusive, but rather meant to be the start of a continuous debate to frame future agendas of research and actions that need to be discussed and criticised.
Research to advance basic academic understanding
Can inspiring visions for a sustainable life in prosperity, but within planetary limits and with less material affluence be formulated and demonstrated? How can fundamental changes in lifestyles of the affluent part of the human population be motivated and sustained?
The interface between materially downshifted lifestyles and the social environment (institutions, values, norms and governance) needs special attention. Which circumstances will allow for and support widespread shifts in lifestyles? What are the institutional, cultural and individual barriers to adopting lifestyle changes and how can they be overcome? What is the role of social groups, organisations and bottom-up movements? Can we learn from societies, e.g. indigenous and pre-industrial societies, which managed to live without economic growth?
So far, steady-state, degrowth or a-growth concepts have not practically been implemented on larger scales. Research on the environmental and social sustainability of these propositions is necessary (see e.g. ref. 78). Can a transition to reduced and changed consumption be achieved while at the same time keeping economic and social stability? What are the implications on work, employment and population growth? How can social security be maintained and equality be increased? What are the consequences for trade and for the global South in particular?
The scientific community should develop scenarios and possible pathways of strong sustainable consumption and production with upper and lower limits as suggested by the floor-and-ceiling framework, or sustainable consumption corridors48,49,91,98. These need to feature reduced physical throughput (possibly resulting in reduced GDP) and recomposing consumption99 with a simultaneous social reorientation of people, institutions and governments. Suitable indicators and scenarios based on interdisciplinary research need to be implemented to monitor progress100.
Research on societal changes for citizens and communities
One first and immediate action anyone can take is to talk about overconsumption, i.e. current levels of consumption by most people in the global North, and how it is unsustainable and unethical or unjust. A wide debate in society, research and policy is necessary. Many people do not see themselves being part of either the problem or the solution, but look for governments, technology and/or businesses to solve the problem. The necessary alternative futures need to be discussed, envisioned and shared. It is important to create a sense of collective responsibility and action. Social sciences research and approaches can help by creating, providing and sharing concepts, experiences and platforms where public debates and dialogues take place. People who have already downshifted should be enabled to share their motivations and experiences to break through stigma and isolation, as would activists building a larger popular movement on climate action.
Research can identify the main issues to focus on primarily (flying, meat and dairy products, car driving, household sufficiency, etc.) and how cultures of sufficiency, care, solidarity and simplicity can be created. Individuals can downshift together as households and communities. Research can help to re-envision and reorganise cities to allow for shorter distances, closer communities, higher self-sufficiency, increased local place identity and more decentralised production, including that of food. More importantly, citizens can learn to engage as social actors to bring forward social tipping points92. These social tipping points include, for instance, removing fossil-fuel subsidies and investments, building decentralised energy generation or low-carbon cities. Such macro-efforts are clearly more important than individual ones, could help to address possible sufficiency rebound effects47 and thus deserve increased research attention and guidance.
Adding to this, as Smith et al.93 point out in reaction to Otto et al.92, it is crucial to ask “Who initiates deliberate, radical change in the collective interest?” and to recognise the pivotal role of social movements in this process.
Research on governance
A number of concrete policy proposals for governance can be extracted from the literature (see also Cosme et al.76). All of these will need further scrutiny and research on their feasibility and implementation:
First, replace GDP as a measure of prosperity with a multitude of alternative indicators and be agnostic to growth. Expect likely shrinking of GDP if sufficient environmental policies are enacted. Research needs to advise on how best to monitor and report progress towards human and planetary wellbeing.
Second, empower people and strengthen participation in democratic processes and enable stronger local self-governance. Design governance and institutions to allow for social experiments, engagement and innovation. This could be trialled and organised e.g. through citizen assemblies or juries, as is demanded by Extinction Rebellion and already practised e.g. by Transition Initiatives or the Catalan Integral Cooperative92.
Third, strengthen equality and redistribution through suitable taxation policies, basic income and job guarantees and by setting maximum income levels, expanding public services and rolling back neoliberal reforms (e.g. as part of a Green New Deal79). Stronger regulation might be needed to ban certain products or ecologically destructive industries that have thrived on a legacy of vested interests, lobbying and state-supported subsidies.
Fourth, the transformation of economic systems can be supported with innovative business models that encourage sharing and giving economies, based on cooperation, communities and localised economies instead of competition. Research is needed to create, assess and revise suitable policy instruments.
And finally, capacity building, knowledge transfer and education—including media and advertising—need to be adapted to support local sufficiency projects and citizen initiatives.
The authors declare that all data supporting this study are available within the paper (data sources for Fig. 1 have been provided in the figure legend).
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We gratefully acknowledge comments from Samuel Alexander, University of Melbourne, Viktoria Cologna, ETH Zürich and Annette Cowie, NSW Department of Primary Industries on earlier drafts of the paper.
- Sustainability Assessment Program, School of Civil and Environmental Engineering, UNSW Sydney, Sydney, NSW, AustraliaThomas Wiedmann
- ISA, School of Physics, The University of Sydney, Sydney, NSW, AustraliaManfred Lenzen
- Institute for Environmental Decisions, Department of Environmental Systems Science, ETH Zürich, Zürich, SwitzerlandLorenz T. Keyßer
- Sustainability Research Institute (SRI), School of Earth and Environment, University of Leeds, Leeds, UKJulia K. Steinberger
T.W. and M.L. ideated the paper. T.W., M.L., L.T.K. and J.K.S. conceptualised, designed and wrote the paper.
Correspondence to Thomas Wiedmann.