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Heading towards an unsustainable world: some of the implications of not achieving the SDGs


The Sustainable Development Goals (SDGs) were conceived at the United Nations Conference on Sustainable Development, held in Rio de Janeiro in 2012 (Rio + 20), and adopted by the United Nations General Assembly in September 2015. They are part of a larger framework, namely the UN 2030 Agenda for Sustainable Development. Since then, many countries round the world have been engaging in respect of their implementation. The slow progress seen in the implementation of the SDGs, is in contrast with the many negative implications of not implementing them. This paper outlines the relevance of the SDGs, the barriers currently seen in respect of their implementation and outlines what is at stake, if they are not duly implemented. To accomplish this, a thorough literature review of contributions published in the field of SDGs in English between the years 2012–2020 was performed.

Introduction: the importance of the Sustainable Development Goals

During the past centuries, almost all the systems have been developed through natural processes. However, with the technological advancements today, development is moving faster than our expectations. Therefore, having no plan for well-being and environment can cause serious problems to the future societies. As a result of the fast-moving unbalanced economic growth, the world’s systems may lose their ability to adjust with the people’s well-being which also significantly affect the environment. In this era, having a systematic action plan can definitely help to focus on a common perspective.

To this end, on 25 September 2015, countries in UN adopted a set of 17 Sustainable Development Goals (SDGs), representing a new coherent way of thinking about ecological, social, and economic issues that are inter-related [1]. Considering as the “transformative agenda” [2], the SDGs address all the critical and major global challenges that threat the future, including those related to poverty, inequality, climate change, environmental degradation, peace and justice, necessarily entails an integrated approach.

Different studies have analyzed challenges and opportunities of the SDGs [3, 4]. Some scholars and practitioners have referred to the fact that these goals are not easy to achieve due to the diversity of the elements involved [5]. Moreover, the importance of including interdependencies between the goals [6, 7], taking a nexus approach [8,9,10], and strengthening governance and institutions [11] have been highlighted in some studies in order to achieve these goals. Nevertheless, the significance of the SDGs can be viewed from different perspectives. For instance:

  • Addressing essential human needs. As the world population grows fast, there is an essential need for the basics of life such as drinking water, food, and shelter. To achieve this, appropriate establishment of plans as well as creating infrastructures are able to guarantee the sustainability of these basic needs for long term periods [10].

  • Managing climate change. Strategies for sustainable development and climate change have shown many common fundamentals, suggesting that sustainable development is a key to capacities for mitigation and adaptation [12]. It is believed that addressing them jointly can synergistically help the future generations. This is one of the main purposes of the SDGs to reduce the excessive use of harmful fossil-based sources. To take the example of China, air pollution from over-reliance on coal-based electricity generation and other fossil fuels contributes to the deaths of more than 1.2 million per year [13]. Therefore, such a path is not merely unsustainable; it is a prescription for disaster. Hence, the 2030 Agenda and its 17 SDGs highlight that a sustainable transformation to renewable energies is sorely needed [14, 15].

  • Financial stability. Financing has always played a key role in the realization of other targets and goals. Sustainable development practices can potentially have a decisive influence on the stability of the financial system to create more financially sustainable economies across the globe. The critical role of energy has been highlighted in this road by the former United Nations Secretary-General Ban Ki-moon: “energy is the golden thread that connects economic growth, social equity, and environmental sustainability” [16]. As a result of the low carbon policy, developing countries can leverage renewable forms of energy to compete with the developed countries and to power up their economies. It is believed that by achieving the SDGs in this sector, many sustainable jobs will be created, affecting the stability of the economy [17].

  • Sustaining biodiversity. The current state of overconsumption practices all around the world has negatively affected biodiversity. The natural ecosystem is designed in a subsequent manner that species depend on one another in a circular way. The SDGs and affords to achieving them encourage us to back to the nature. This will result a balance in the biodiversity of different species [18,19,20].

Finally, it should be noted that to achieve the SDGs, based on the multidisciplinary nature of sustainability: (1) Innovative transition pathways are required to allow countries to move forward, and (2) a collaborative work should be done in a global scale. Focusing on universality of the 2030 agenda, although countries develop their own pathways to national targets, it is not limited to the borders and cultures. The ultimate goal of all these affords is saving the whole planet for the future generations. Hereafter, the paper discusses barriers to the implementation of the SDGs, followed by the used methodology, and results and discussion, presenting some of the consequences of not reaching the SDG with an emphasis on a worst-case scenario.

Barriers to the implementation of the UN Sustainable Development Goals

Although the SDGs, also known as “global goals” are supported by several countries, many challenges current hinder their implementation. Some of them are as follows:

  1. 1.

    Vague goals: Several of the goals are not well explained allowing for own interpretation and thus weak implementation. Therefore, it is imperative that the SDGs have indicators and benchmarks as well as formal agreements with governments for implementation [21].

  2. 2.

    Collective action: It is difficult to ensure that several parties work together to achieve the set goals. Several coordination issues exist preventing the efficient implementation of goals [22].

  3. 3.

    Trade-offs: The 17 SDGs were developed to ensure economic and environmental sustainability however, conflicts between each goal may exist. This causes the need for trade-offs to be identified i.e. sacrificing parts of one goal to benefit another goal when it is impossible to achieve both. Until all trade-offs and conflicts are identified it will be difficult to implement goals [23].

  4. 4.

    Accountability: A major challenge in application of goals is ensuring accountability for commitments made to the SDGs. This will ensure that targets and goals will be met within the prescribed period of time by the committed parties. A lack of accountability will reduce the chances of proper implementation [24, 25].

  5. 5.

    Financial constraints: In order to achieve goals set, a large amount of financial investment is required. Several countries lack the capital needed to fund the programmes involved in reaching the SDGs. This is more evident in third world countries as opposed to developed countries [26].

  6. 6.

    Capacity building: This requires parties involved in the development programmes to acquire all the skills, tools and education needed to carry out tasks to achieve goals. This is often not possible due to various reasons including location, finance, and trained personnel [26].

  7. 7.

    Technology and data: The success of any project requires the large-scale collection of data and monitoring of trends. This process is dependent on having the necessary updated technology which is not always available. This is more so apparent in developing countries making it more difficult to implement SDGs. Furthermore, some countries lack the infrastructure that is necessary for implementation [27].

  8. 8.

    Culture: Some cultures prohibit people from being open to new ideas and development. This seen significantly with indigenous groups which hampers the implementation of strategies [28].

The timeframe for the SDGs implementation has entered the “Decade of Action” 2020–2030. The UN High Level Political Forum (HLPF) in September 2019 on the “SDG Summit”, stressed that necessity for action on three areas “global” “local”, and “people” [29].

Table 1, connects the above mentioned SDGs challenges with these areas of actions, and explains some of the governance aspects for each of the challenges.

Table 1 Connections between SDG challenges and governance

The challenges for SDGs are also interdependent. Resolving some issues would result in improving other conditions. For instance, “Collective action”, requires guidance and global coordination, which would emphasize inclusive decision making, involvement of diverse actors, and contributions from all sources. On the other hand, enhancing collective action can influence “Accountability”, probably by defining clearer roles and responsibilities for the national/local governments, which still remain the main responsible actors. Collective action is also important for “technology and data” that would feed to the SDGs framework, through an integrated global approach. Better coordination of financial resources in international level can also resolve some “financial constraints”. Exchanges between countries and actors can facilitate “Capacity building”.

Additionally, “Trade- offs” can depend on the counties priorities, and the interests of the donors for specific SDGs. Silos approach from some governments can negatively influence the implementation of the 2030 Agenda as a whole. Uneven implementation of the Goals is also related to unbalance development between countries and their political environment. The ambiguity or “Vagueness” of the Goals can hamper “data and technology” as an obstacle for the SDGs reporting and monitoring framework. Thus risking an unmeasured performance even when there are contributions toward the SDGs. Another important element is the synchronization of different agendas, so the SDGs to become a common language. In this aspect “Culture” and bringing SDGs to the basis would require awareness rising, financial resources and coordination.


Based on the need to foster a better understanding of the consequences of not implementing the SDGs, this work had three main objectives. Firstly, it intended to outline the relevance of the SDGs in achieving global sustainability. Secondly, it aimed to present the main barriers faced in the implementation of the SDGs. Finally, it intended to outline the implications of failing in implementing the 2030 Agenda.

To accomplish those objectives an extended literature review was performed, which is defined by Aboudaoude, Feghali, and Kfouri [30, p. 27], as “a critical look and in depth interpretation and assessment of previous research relevant to the topic or problem being studied”. The literature review was applied to select a comprehensive set of contributions that adequately represent the body of references published within the field of SDGs addressed to its relevance, the state-of-art of its implementation, in terms local and global, as well as, the major challenges reported that hinder its proper implementation and also studies that described the consequences experienced in regions which have had a poor performance in implementation of SDGs.

Several library databases were used in the process of searching and collecting references for this review, including ScienceDirect, Taylor & Francis, Springer, Sage, EBSCO, ProQuest, Wiley, and Emerald.

The following three criteria were employed to select the articles used in this study:

  1. 1.

    Period: studies published between 2012 to 2020;

  2. 2.

    Language: in English;

  3. 3.

    Themes: related to the integration of SDGs and theoretical framework; cases of implementation and performance of SDG in specific regions; major sustainability problems regarding to the low implementation of whole SDGs or a specific objective; advantages and transitions paths related to higher-level implementation of SDG; and, global reporting and monitoring results of SDG implementation.

While contributing to the knowledge on the evolution of SDS implementation over time, the study presented in this article nonetheless is subject to the following limitations: the first is related to the fact that this article only considers references published in English, disregarding cases and reports published in other language then English; the second, considering that the literature on SDGs is exhaustive and full coverage of all the articles is not achievable, there was a need to prioritize the scope considered most globally relevant, and may have disregarded others more specific aspects considered pertinent for a given region.

Results and discussion

Table 2 presents an overview of some of the consequences of not implementing the SDGs. Due to their importance, the analysis entails all SDGs and does not prioritise any specific one. It can be seen that the consequences of a non-implementation are significant, and may endanger the lives of many people.

Table 2 Some of the consequences of not reaching the SDGs.

The implications of the non-achievement of the SDGs are significant. For instance, success in achieving poverty reduction is of crucial importance for every country around the world. Even in case of optimistic scenarios, African countries such as Nigeria Benin, Burundi Central African Republic, Malawi, Mali, Mozambique, Somalia, South Sudan, and Zambia are expected to have poverty levels increased by a further 20% by 2030 [71, 72], characterising what is “extreme poverty”. These countries are also likely to be affected by various climate hazards and disasters [72]. Annually, the global economy losses in excess of USD 520 billion means that 26 million additional people are pushed into poverty [73].

Provision of food security is also heavily impacted by climate variability and extreme weather events, threatening the well-being of the poor [74], especially in countries where food needs are not met due to limited resources. In 2017, nearly 821 million people were affected by chronic food deprivation or undernourishment [74].

The global health system is also threatened by spread of infectious diseases. According to latest estimates, total annual losses from a pandemic are about 0.6% of global GDP [75]. The latest EU scenarios project that real GDP growth might fall to 0% or even be considerably negative as a result of the COVID-19 crisis [76]. It is projected that global GDP will decrease by 2.8% in 2020 in comparison to 1.1% in 2009 [77].

Economic development depends also on education that provides children and youth with knowledge and skills necessary for their future. Unfortunately, the quality of children’s’ education not always reach a necessary level. In low-income countries only 20% of all 3- to 6-year-olds have access to preprimary education, globally this value reaches 50% [78]. Despite the increase of the literacy level among youth, there are still 56 and 44 million illiterate women and men between age 5–24 years [79]. Education is facing continuous insufficient funding. In 2012, the share of preprimary education in the education budgets of North America and Western Europe accounted to 8.8%, whereas Sub-Saharan Africa allocated only 0.3% for the same purpose [78]. During the last decade, financing of adult learning and education (ALE) has continued to decrease. Worldwide, 14% of the countries allocate less than 1% to ALE and 19% less than 0.5% [80].

Non-implementation of the SDGs: a worst-case scenario

The 2019 SDG index offers evidence that not even the most progressed countries topping the index, i.e. the EU’s Nordic countries Sweden, Norway and Finland, managed to enter a transformative path that would lead to truly achieving all the seventeen Sustainable Development Goals by 2030 [81]. Moyer and Bohl [82] warn that many human development related SDG indicators may not be achieved neither by 2030 nor 2050 on the current development trajectory. As global phenomena like climate change, the continued loss of biodiversity and rising inequality are expected to increasingly impact global human development, a new debate that is emerging slowly in the sustainability field centers around the worst-case scenario: What are likely consequences if the implementation of the SDGs falls short, what may happen if the underlying 169 targets are not reached in 2030 by the global community?

Introduced in 2015, the UN Statistical Commission created the Inter-agency and Expert Group on SDG Indicators (IAEG-SDGs) which is continuously working towards improving the global indicator framework. Until today, measuring SDG performance seems a never-ending story, due to the continued need to develop of appropriate methodologies and standards as well as making required country-level data available that allow reliable truly global SDG monitoring and forecasting [83]. As the SDGs are interlinked with each other (see [84]), Donoghue and Khan [85] highlight the critical need to understand synergies and tradeoffs and act accordingly, bearing in mind that decisions taken in one area may negatively endanger progress in others. Sachs et al. [81] point towards substantial negative ecologic and socio-economic spillover effects generated by high-income nations on low-and middle-income nations, e.g. nurturing poor labor standards or promoting deforestation.

The dynamics and complexity of global development are a substantial challenge to forecasting SDGs achievements. Moyer and Bohl [82] argue that achievement of the SDGs should be analyzed at the country, not regional level to capture progresses made. Several approaches can be found in the literature, e.g. using composite SDG indexes (e.g. [81]) that assess and monitor the current state of SDG achievement at the country level and extrapolate results to show trends. Utilizing baseline scenarios such as the Shared Socio-Economic Pathways (SSPs) found in climate science, i.e. cross-cutting projections of a global future (see IPCC), or back-casting or target-seeking scenarios, i.e. exploring how trajectories towards distinctive goals may look like (see, e.g. [86]), in connection with integrated assessment models that allow assessment at the country level, are another way for generating SDG projections [87].

Referring to biodiversity conservation, Kok et al.’s [86] assessment of an ‘option space’ provided by three distinctive pathways (see [88, 89]) for agriculture and forestry, the sectors reported to be responsible for up to 60% of the total reduction in global terrestrial biodiversity, suggested that human development may thrive best if the world pursues a global technology pathway whereas a pathway linked to reduced consumption might be less favorable [82]. However, current forecasts on individual SDG achievement or interacting SDG variables only provide downscaled country-level insights, i.e. possibly diluting developmental differences and resulting in a blurred picture [82, 87].

Despite existing methodological challenges, SDG monitoring and forecasting is progressing and has produced first results that point into similar directions (e.g. [81, 87]. For example, differentiating according to world regions, a current study assumes a ‘middle-of-the-road scenario’ (= SSP2) and analyzing progress of a sub-set of six human development SDGs (i.e. 1, 2, 3, 4, 6 and 7), Moyer and Hedden [87] projected that only 53% of the target indicators assessed may be achieved by 2030. Moreover, 28 particularly vulnerable countries may not achieve any progress in any of the nine human development related target indicators, suggesting an urgent need for initiating action to foster sustainable development within those nations as to leave no one behind.

The dull perspectives suggested by Moyer and Hedden [87] can be underpinned by current monitoring and trends for the respective regions: Presently, Sub-Saharan African countries, show poor performance on socio-economic goals and provide even basic access to services and infrastructure (SDGs 1–9). Negative or even reversed trends are suggested for urban pollution related to sustainable cities (SDG 11), and SDG 15 related to biodiversity loss and deforestation [81]. For the Asia–Pacific region, a recent UN report observed stagnation or even opposite development for more than half the SDGs in the region, especially SDGs 6, 8 and 12. In other areas progress has been achieved, e.g. SDG 1 (poverty), 4 (quality education) and 7 (sustainable energy), but pace appears too slow to meet the 2030 targets [90]. Whereas the situation in East and South Asia may be considered similar relating to SDG 1, 4 and 7 (with exceptions), progress in eight SDGs is slow in most of those nations (SDG 2, 3, 5, 12–15, 16). However, achieving the SDG targets in a region comprising nations if varying sizes and economic development is a complex endeavor. Despite the eradication of poverty seems viable, the targets of SDG13 and 15 will likely not be met in most of East and South Asia on the current trajectory [81, 91]. Progress in most of the SDGs, especially SDG2 (Hunger), SDG 3 (good health and well-being) and SDG 16 (Peace, Justice and Strong Institutions), in the Middle East and North African region is severely impacted where conflicts and wars exist. Achieving SDG2 appears to be a major challenge for all countries in the region [81]. Latin America and the Caribbean lack behind in SDG 12–15 as their economic development negatively affects their environments, and the regions show little progress if at all in SDG 16 due to deadly crime and corruption. Income and wealth inequalities (SDG 10) persist, and access and quality issues relating to health and education impede progress towards SDG 3 and 4 targets [81]. OECD countries’ efforts in terms of climate change mitigation and biodiversity protection need to be accelerated. A lack of agricultural transformation and shifting in diets remains problematic, also inequalities, the poverty of the elderly population and a persistent gender gap relating to pay and unpaid work prevail [81].

This list of consequences is by no means exhaustive, but serves the purpose of illustrating the many implication of lack of concerted action in their implementation. Future research could embrace a qualitative approach, based for instance on a delphi technique, to examine and unveil visions and scenarios from a set selected experts. Other studies may also highlight the implications for diverse types of stakeholders (e.g. policy makers, NGOs, industry, etc.).


This study has revealed a number of trends. As a start, it can be seen that the list of obstacles to implement the SDGs is long, with many serious problems to be tackled, which at the moment hinder their implementation. But it has also shown that, left unattended, the negative outcomes of not implementing the SDGs may lead to an overall depletion of environmental conditions, an exacerbation of problems such as poverty and hunger.

In addition, economic growth and well-being can also be negatively influenced if a low emphasis to the SDGs is provided. Managing the complexity of SDG implementation is not simple. As they are structured, their implementation depends on partnerships and engagements of local communities and a wide range of stakeholders and require proper sustainability leadership. Moreover, complex issues related to social justice, gender equality and peace are likely to remain unsolved, and many problems will prevail, if the SDGs are not duly implemented.

As this work has shown, the disadvantages of not pursuing the SDGs suggest that much could be gained if they are pursued—and hopefully achieved—so that they are worthy the effort. The implications of this study are twofold. First of all, it sends a clear message about the need to take the SDGs seriously, and pay better attention to the many factors which affect their implementation. Secondly, the original analysis of the implications of not achieving the SDGs, as provided here, should be seen as a warning sign.

In terms of implications for further research, this paper outlines the need for a greater emphasis on a critical analyses and empirical assessments of the degree to which the 17 SDGs are being implemented. It may also pave the way for further studies which may investigate the consequences to specific sectors (e.g. agriculture) and population groups (e.g. farmers, herders, fishing communities) whose livelihoods heavily depend on nature, natural resources and ecosystem services.

A failure to achieve the SDGs is likely to negatively affect billions of people round the world, with substantial damages to livelihoods, an exacerbation of poverty and the spread of diseases. These, in turn, will particularly affect people in developing countries, which are especially vulnerable.


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WLF: the idea for the article, critical revision of the work. FW: the literature search and data analysis, Sects. 1, 4. ALS: the literature search and data analysis, Sect. 4. AB: the literature search, section on the importance of SDGs. KS: data analysis, section on barriers to the SDGs implementation. MK: the literature search, Sect. 4. CRPV: Sect. 3.

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Correspondence to Marina Kovaleva.

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Leal Filho, W., Wolf, F., Lange Salvia, A. et al. Heading towards an unsustainable world: some of the implications of not achieving the SDGs. Discov Sustain 1, 2 (2020).

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