Cross-sector collaborations (CSCs) are crucial for addressing complex environmental, social, and economic challenges. Sustainability issues are multifaceted and require holistic solutions that leverage multiple stakeholders’ expertise, perspectives, resources, and networks. This research explores the effectiveness of CSCs for strategic sustainable development (SSD). It identifies conditions for effective sustainability-oriented CSCs, assesses the applicability of these findings to various contexts, and provides key considerations for newly forming CSCs and SSD practitioners. The research study was undertaken in two phases. Phase 1 examined cross-sector initiatives within the sustainable development field in Sweden and other parts of Europe. It explored how these CSCs operate effectively by examining their formation conditions, processes and structures, endemic tensions and conflicts, and accountabilities and outcomes using a conceptual framework. Data collection involved nine semi-structured interviews, which were analysed deductively to identify patterns based on these conditions. In phase 2, the findings from phase 1 were summarised and presented to SSD practitioners working with CSCs. This phase refined the nuances CSCs need to effectively apply a strategic sustainable development approach. Data collection involved semi-structured interviews, and the findings were analysed inductively to pinpoint common themes. The research identified eight key considerations for SSD practitioners when working with CSCs toward sustainable development.

Following unprecedented earthquakes in 1999, highly centralized Turkey initiated reforms that aimed to improve disaster management collaboration and to empower local authorities. In 2011, two earthquakes hit the country anew affecting the city of Van and town of Erciş in Turkey’s southeast. In attempts to reduce disaster risk, global disaster risk reduction frameworks and disaster scholars and practitioners advocate collaborative and decentralized disaster management strategies. This thesis investigates how such strategies are received in a centralized and hierarchical national political-administrative system that largely is the anti-thesis of the prescribed solutions. More specifically, this research investigates the barriers and prerequisites for disaster management collaboration between both public and civil society actors in Turkey (during preparedness, response, and recovery) as well as how Turkey’s political-administrative system affects disaster management collaboration and its outcomes. The challenges to decentralization of disaster management are also investigated. Based on forty-four interviews with actors ranging from national to village level and NGOs, the findings suggest that the political-administrative system can alter the relative importance, validity, and applicability of previously established enabling or constraining conditions for collaboration. This may in turn challenge previous theoretical assumptions regarding collaboration. By adopting a mode of collaboration that fit the wider political-administrative system, collaborative disaster management progress was achieved in Turkey’s national level activities. Although there were exceptions, collaboration spanning sectors and/or administrative levels were generally less forthcoming, partly due to the disjoint character of the political-administrative system. Political divergence between local and central actors made central-local collaboration difficult but these barriers were partly trumped by other prerequisites enabling collaboration like interdependence and pre-existing relations. The findings suggest that the specific attributes of disasters may both help and hinder disaster management collaboration. Such collaboration generally improved disaster response. The findings also indicate that the decentralization attempts may have been premature as the conditions for ensuring a functional decentralization of disaster management are presently lacking. Decentralization attempts are commonly suggested to increase local capacity and local participation but the findings of this dissertation suggest that in Turkey, these commodities may currently have better chances of being increased by refraining from decentralization.

Climate Science Communication is an important tool for helping organizations set strategies to reduce their climate impact. As a major contributor to global climate warming emissions, the food industry needs to take stronger action to reduce their climate impact if the world wants to achieve the global climate goals committed to in the 2015 Paris Agreement. To ensure they meet the climate commitments in their Corporate Social Responsibility strategies, corporations in the food industry should use science-based targets, which research shows are more effective and ambitious. Through the context of Sweden, a country which has set strong emissions reduction policy, this thesis investigates the role that Climate Science Communication and stakeholder communication play in the actions that corporations in the food industry are taking to help achieve the global climate goals. This qualitative study analyzes the firsthand accounts of ten professionals across the food, science communications, and science research industries. Interviews with the participants explore stakeholder management in science communication, the role of collaboration within the science and food industries, and what gaps they see between the science community and the food industry when establishing corporate climate strategies. Results suggest that there is a necessary, and often missing, link between the food industry’s climate strategies and the climate research that informs them. Using principles from Stakeholder Theory, Communications Accommodation Theory, and Cross-Sector Collaboration can help bridge this gap. Improved stakeholder collaboration, better efforts to help decision makers understand climate science, changes to corporate behaviors, and systemic changes in both the corporate world and academia can improve the relationship between the science community and food industry, leading to more effective and impactful climate strategies and results.