This editorial was published in the Bulletin of the World Health Organization [© 2013 Bulletin of the World Health Organization] and the definite version is available at: http://www.who.int/bulletin/volumes/91/1/12-115808/en

In 2015, the United Nations' (UN) Member States adopted a bold and holistic agenda of the Sustainable Development Goals (SDGs), integrating a vision of peace and prosperity for people and planet. Extensive work within, between, across sectors is required for this bold and holistic agenda to be implemented. It is in this context that this special article collection showcases multisectoral approaches to achieving SDG 3-Good Health and Well-Being-which, though focused explicitly on health, is connected to almost all other goals. A confluence of social and health inequities, within a context of widespread environmental degradation demands systems thinking and intersectoral action. Articles in this issue focus on the SDGs as a stimulus for renewed multisectoral action: processes, policies, and programs primarily outside the health sector, that have health implications through social, commercial, economic, environmental, and political determinants of health. Case studies offer critical lessons on effectively engaging other sectors to enhance their health outputs, identifying co-benefits and 'win-wins' that enhance human health.

Objectives: The Sustainable Development Goals (SDGs) re-orient action towards improving the social and ecological determinants of health and equity. SDG 17 calls for enhanced policy and institutional coherence and strong multi-stakeholder partnerships. Intersectoral action (IA) has a promising history in public health, including health promotion and global health. Some experts see IA as crucial to the SDGs. Yet less is known about how IA is conceptualized and what promising models exist with relevance to the SDGs. We sought to investigate how IA is understood conceptually and empirically.Methods: We conducted a narrative review of global public health and political science literatures and grey literature on the SDGs to identify theoretical models, case studies and reviews of IA research.Results: Multiple competing conceptualizations of IA exist. Research has focused on case studies in high-income countries. More conceptual clarity, analyses of applications in LMICs, and explorations of political and institutional factors affecting IA are needed, as is attention to power dynamics between sectors.Conclusion: IA is required to collaborate on the SDGs and address equity. New models for successful implementation merit exploration.

Global discussion on the post-2015 development goals, to replace the Millennium Development Goals when they expire on 31 December 2015, is well underway. While the Millennium Development Goals focused on redressing extreme poverty and its antecedents for people living in developing countries, the post-2015 agenda seeks to redress inequity worldwide, regardless of a country’s development status. Furthermore, to rectify the UN’s top-down approach toward the Millennium Development Goals’ formulation, widespread negotiations are underway that seek to include the voices of people and communities from around the globe to ground each post-2015 development goal. This reflexive commentary, therefore, reports on the early methodological challenges the Go4Health research project experienced in its engagement with communities in nine countries in 2013. Led by four research hubs in Uganda, Bangladesh, Australia and Guatemala, the purpose of this engagement has been to ascertain a ‘snapshot’ of the health needs and priorities of socially excluded populations particularly from the Global South. This is to inform Go4Health’s advice to the European Commission on the post-2015 global goals for health and new governance frameworks. Five methodological challenges were subsequently identified from reflecting on the multidisciplinary, multiregional team’s research practices so far: meanings and parameters around qualitative participatory research; representation of marginalization; generalizability of research findings; ethical research in project time frames; and issues related to informed consent. Strategies to overcome these methodological hurdles are also examined. The findings from the consultations represent the extraordinary diversity of marginal human experience requiring contextual analysis for universal framing of the post-2015 agenda. Unsurprisingly, methodological challenges will, and did, arise. We conclude by advocating for a discourse to emerge not only critically examining how and whose voices are being obtained at the community-level to inform the post-2015 health and development goal agenda, but also how these voices are being translated and integrated into post-2015 decision-making at national and global levels.