With the Paris Agreement calling for climate change to be held "well below" 2oC, and the release of the 2030 Sustainable Development Goals, the international community has reaffirmed its commitment to enabling human progress within the constraints of the biosphere. In major assessments, a common approach is to examine climate and development trade-offs under a framework of economic costs, rather than human well-being, despite the latter being a potentially more accurate way to portray real development outcomes. This thesis elaborates on these links between well-being, carbon emissions and climate change mitigation; it identifies the implications of this new framework, and examines whether it is possible to achieve both low-emissions and high well-being within the limitations of society, economy and the climate. A fundamental issue is whether minimum thresholds of energy consumption necessary for satisfying human needs can be extended to all without exceeding the 2oC goal and further endangering well-being. This is found to be a key trade-off that requires either a deep commitment to emissions reductions in Northern countries, or the avoidance of carbon-intensive infrastructures in the South. Nonetheless, there are already examples of countries that have attained high levels of well-being in multiple dimensions of human need at little cumulative emissions cost, and according to current growth trends will continue to do so with a minimal impact on the shared carbon space. These nations are also diverse in terms of their underlying drivers of carbon emissions (and thus challenges in mitigation), and may provide a rich source of climate-development policy for emerging countries in the global South. However, it is understood that systematic political-economic constraints are preventing a convergence of well-being outcomes and emissions impact across the development hierarchy, highlighting the social and political (rather than technical) issues that must be addressed in order to safely transition society towards a low-carbon future.

A desirable future critically depends on our ability to ensure the supply of key resources while simultaneously respecting planetary boundaries. This paper looks at the potential implications of living within the "safe operating space" for people, business and the economy. It develops a positive vision of the future based on three pillars: a safe and fair use of global resources, a sustainable society, and a transformed economy.We review and build on recent sustainability visions to develop a holistic reflection on what life in 2050 could look like, and explore the key changes in the economy needed to get there. In particular we show that resource efficiency requires a systemic shift in values, innovation, governance and management regimes. We present a bold vision for Europe underlined by indicators and targets, explore transition challenges to getting there and conclude with a list of key policies needed for overcoming challenges and reaching the vision. (authors' abstract)

Identifying pathways of agricultural development that enable substantial productivity improvements is of prime importance for food security and human development across Sub-Saharan Africa. To ensure long-term welfare for its people and landscapes, it is imperative that such agricultural transformations are environmentally sustainable. This study explores the case of Ethiopia and aims to assess constraints and opportunities for a sustainable agricultural transformation, by analysing a) the governance context, b) narratives of agricultural development, and c) strategies employed by “green” non-state actors in the agricultural sector to lever change in the direction they perceive as desirable. By assessing the governance structure, the study finds that many non-state actors face significant legal and practical barriers to action, and that the strong government domination and rigid structures provide limited opportunities for influence. Further, the study finds that agricultural policy is dominated by a “Green Revolution”-inspired narrative focused on production and productivity, although food security and environmental rehabilitation narratives exist alongside. Issues of agricultural production and natural resource management are found to be largely decoupled in policy, which constitutes another barrier for green non-state actors working across the divide. Given these challenging conditions, green non-state actors in Ethiopia choose a strategy of close collaboration with government institutions, which, while offering the possibility of large-scale impact, may also reduce the prospects for more radical change. Applying current theories of sustainability transformations to a new type of system, the study concludes with a call for new conceptualisations of endogenous and exogenous change in future research to ensure that the theory fits a broader range of social-ecological realities.