The ocean plays a central role in the life and development of human kind. Besides space for navigation and trade (roughly 10 billion tons of commodities are transported across the oceans each year), the provision of biological and non-living resources is the most important service of the marine ecosystems. Yet, these ecosystems are increasingly impeded by human activities and interventions. Human and naturally induced changes in climate are buffered by the ocean, but its capacity to compensate the increase of CO2 in the atmosphere is at its limit. The increase of global temperatures and the decrease of oxygen concentration and pH are severe stressors for aquatic species and thus for the whole ecosystem. Urbanisation and population growth at the coast, along with severe levels of pollution, are stressing coastal environments and hampering or interrupting life cycles of species as well as the well established and naturally balanced internal interconnections within and between ecosystems. Mining for oil and gas is interfering with fisheries, competing for space with other sectors and increasing the risks for large scale pollution. The result is a decline in ecosystem services and a negative feedback into the socio-economic systems. The recent reports by IPBES and IPCC underline the degrading conditions in which the ecosystems are situated today. The IPBES report evaluates a number of direct and indirect drivers. Population increase, technical development, malfunctioning of governance and spreading of conflicts affect direct drivers such as sea use change, direct exploitation, climate change, pollution, invasive species and others. Following a series of summits and conventions that prompted the United Nations in recent decades, Rio de Janeiro in 1992, Johannesburg in 2002 and Rio+20 in 2012, all of which were rather land-based, the Sustainable Development Goals 2015 set a new landmark in which the ocean, too, was finally acknowledged as significant to global development. The Ocean Conference in New York in June 2017 led the international community to formulate clear goals for the development of the ocean. The volume Transitioning to Sustainable Life below Water will address critical issues in ocean use and reflect against goals and targets of SDG 14 and other relevant SDGs. Transitioning to Sustainable Life below Water is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries. *The chapters listed below, are pre-publication chapters and the final page numbers will be assigned once the book is published as a whole. For citation purposes, cite each article independently as indicated below: (Author 1, and Author 2. 2021. Chapter Title in Transistioning to Sustainable Life below Water. Edited by Werner Ekau and Anna-Katharina Hornidge.

Sustainable Life on Land, the fifteenth UN Sustainable Development Goal (SDG 15), calls for the protection, restoration and promotion of the sustainable use of terrestrial ecosystems. Among others, it requires societies to sustainably manage forests, halt and reverse land degradation, combat desertification, and halt biodiversity loss. Despite the fact that protection of terrestrial ecosystems is on the rise worldwide and forest loss has slowed, the recent IPBES report concluded that “nature is declining globally at rates unprecedented in human history”. Consequently, the United Nations General Assembly recently declared 2021–2030 the UN Decade on Ecosystem Restoration. There is no doubt that the current global responses are far from sufficient and significant transformative changes of societies are needed to restore and protect nature and ecosystems. Transitioning to Sustainable Life on Land presents reviews, original research, and practical experiences from different disciplines with a focus on: theoretical and empirical reflection about the necessary transformation of values, institutions, markets, firms and policies, reviews and research on protection, restoration and sustainable use of diverse terrestrial ecosystems, analyses and reporting of encouraging local, regional, national, and global initiatives. Transitioning to Sustainable Life on Land is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries.

In 2015, the United Nations decided to establish the goal of achieving “zero hunger” in the world by 2030 through “outcome targets” such as eliminating hunger and improving access to food, ending all forms of malnutrition, promoting sustainable and resilient agriculture, and maintaining genetic diversity in food production. As a result of this decision, strategies are under way in different countries around the world in the form of political, academic, development, and non-governmental organization projects and programs. Five years later, these strategies have certainly generated results that need to be documented and analyzed so as to answer the following questions: what are the progress and success stories in terms of policies, innovations, technologies, and approaches to reach the zero hunger goal? What are the constraints and mitigation strategies? Are we really in a phase of transition towards the zero hunger goal? What new directions do we need to consider to achieve this goal, particularly in the context of COVID-19 pandemic, which affects all sectors of development around the world? Transitioning to Zero Hunger is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries.

"Before the UN Sustainable Development Goals: A Historical Companion enables professionals, scholars and students engaged with the SDGs to develop a richer understanding of the legacies and historical complexities of the policy fields behind each goal. Each of the seventeen chapters tells the decades or centuries-old backstory of one SDG, including an examination of how the SDG problem impacted past societies and the various attempts at understanding and addressing it. Collectively, the chapters reveal the multiple and often interwoven histories that have shaped the challenges later encompassed in the SDGs. The book's chapters, written in an accessible style, are authored by international experts from multiple disciplines. The book is an indispensable resource and a vital foundation for understanding the past's indelible footprint on our contemporary sustainable development challenges"--

Transitioning to Quality Education focuses on the fourth UN Sustainable Development Goal. According to SDG 4, every learner should acquire the knowledge and skills needed to promote sustainable development (UN 2015, 17). Thus, the aim of sustainability education is to foster learners to be creative and responsible global citizens, who critically reflect on the ideas of sustainable development and the values that underlie them, and take responsible actions for sustainable development (UNESCO 2017). Sustainability is strongly connected to attitudes and values, therefore, applications of sustainability are complicated. Quality education requires teachers to have competences, knowledge, and skills to be able to plan and carry out meaningful education and teaching in sustainability. The aim of Transitioning to Quality Education is to provide versatile experiences and new knowledge on the cognitive, affective, and social issues that are important for promoting sustainable development in formal and non-formal education. Transitioning to Quality Education is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries.

The world has never been richer than today. The distribution of our global wealth, however, is hugely biased. Since 1980, the gains were mainly captured by the rich: The top 1% obtained twice as much of the income growth as compared to the bottom 50%. Nevertheless, within economics, debates about inequality have remained rather marginal, despite long-term research by renowned scholars such as Tony Atkinson. Within the public arena, concerns about inequality emerged as a result of a number of developments: First, the global financial crisis in 2008 exposed the risks of the financing of the economy; secondly, 2013, Thomas Picketty’s book “Capital in the 21st century” demonstrated that, against the trend of the overall 20th century, capital returns outstrip the gains through economic growth in recent decades, thus threatening social coherence and democratic institutions and thirdly, the Millennium Campaign presented impressive achievements regarding poverty but stirred doubts whether the most deprived were left even further behind. Since 2015, then, the stated aim of SDG 10 is to “reduce inequality within and among countries”. There is growing consensus that economic growth is not sufficient to reduce poverty, and that our efforts to make it more inclusive so far were insufficient. The very first step reduce inequality is to adopt a systemic perspective, allowing an integrative analysis covering both ends of the ladder. Policies should be universal in principle and pay attention to the needs of disadvantaged and marginalized populations. Predicated on comparison, inequality reminds us that it’s not enough to study lower earners and the poor. Instead, the term demands that we expand our perspective, scrutinizing how economic value is generated, accumulated, at whose cost, and – not least – how the overall system could be made fairer. “Transitioning to Reduced Inequalities” therefore explores inequality trends worldwide, offers a debate on different measures and comparative perspectives, highlights key actors who either benefited or suffered from recent economic trends, and explores policy options to reduce inequality and thus contribute to SDG 10. The volume considers particularly: conceptual frameworks with regards to the inequality debate; the relationship between poverty reduction, economic growth and inequality; measures of inequality; overlooked/bypassed groups in developing countries; analysis on income/wealth growth for different groups in the global north; discussion about policies to reduce inequality; and further research in the realm of inequality. Transitioning to Reduced Inequalities is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world.

Transitioning to Good Health and Well-Being addresses critical issues of health in the context of sustainability, which need to be tackled in order to achieve Agenda 2030. Acknowledging the dramatic improvements that have been made in the past decades with regards to health, we also face disparities that remain amongst and within countries. While life expectancy has more than doubled, we are, at the same time, confronted with the challenges that come along with population growth alongside environmental change, migration, ageing, and economic disparities. In its 2018 progress report concerning SDG 3, the UN stated that, while the quality of global health is increasing, “people are still suffering needlessly from preventable diseases”, both infectious and non-communicable, "and too many are dying prematurely". Although we are on the verge of eradicating, poliomyelitis, which disables 350’000 children each year, we continue to have few answers for outbreaks of emerging infectious diseases. Making progress against these outbreaks with strong health systems, particularly in neglected or inaccessible regions, is deeply connected to further issues targeted by the UN SDGs such as (restricted) access to clean water, healthy food, or continuing political instabilities as well as gender inequalities. Transitioning to Good Health and Well-Being, therefore, offers a vessel for a productive reflection and conversation on the meaning of and possibilities for global health, giving voice to a range of scholars, strategists and practitioners. Transitioning to Good Health and Well-Being is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries.

Transitioning to Affordable and Clean Energy is a collective volume which combines original contributions and review papers that address the question how the transition to clean and affordable energy can be governed. It will cover both general analyses of the governance of transition, including policy instruments, comparative studies of countries or policies, and papers setting out scientifically sound visions of a clean and just energy system. In particular, the following aspects are foregrounded: • Governing the supply and demand side transformation • Geographical and cultural differences and their consequences for the governance of energy transitions • Sustainability and justice related to energy transitions (e.g., approaches for addressing energy poverty) Transitioning to Affordable and Clean Energy is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries.

According to the United Nations Development Program (UNDP) and the United Nations Conference on Trade and Development (UNCTAD), the private sector plays a key role in achieving the UN Sustainable Development Goals (SDGs). After all, sustainable and inclusive economic growth is essential to enable more people to participate in global prosperity. Encouraging entrepreneurship and job creation are key to SDG 8, as are effective measures to eradicate forced labor, slavery, and human trafficking. Since more than 90 percent of jobs are created by the private sector, more attention must be paid to entrepreneurs that help create dynamic and responsible enterprises that often generate positive externalities for society and the environment through investments in scalable innovations and a commitment to local embeddedness. As such, they help lift people out of poverty through new and relatively well-paid jobs and enable local economies to become more sustainable through global value chain integration. Transitioning to Decent Work and Economic Growth explores the prospects for SDG 8 in the Global South as well as the Global North. It especially considers the positive role the private sector may play as an enabler of human rights, creator of decent work and engine for inclusive development in different contexts. Further, it examines how the institutional environment can facilitate economic change, which may lead to social empowerment and enhanced economic opportunities. A key question the volume explores, is how—in an entrepreneurial context—innovation and scientific knowledge contribute to the creation of scalable innovation that help to de-couple economic growth from the use of natural resources. Transitioning to Decent Work and Economic Growth is part of MDPI's new Open Access book series Transitioning to Sustainability. With this series, MDPI pursues environmentally and socially relevant research which contributes to efforts toward a sustainable world. Transitioning to Sustainability aims to add to the conversation about regional and global sustainable development according to the 17 SDGs. The book series is intended to reach beyond disciplinary, even academic boundaries. For use of the SDG logos and design, please see the according Guidelines for the use of the SDG logo, color wheel, and 17 icons.