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The 12th of the 17 Sustainable Development Goals （SDGs） adopted by the United Nations in 2015 is to ensure sustainable consumption and production （SCP） patterns. Approaches to sustainable production, such as clean production and design for environment, have been established, but approaches to sustainable consumption, such as green purchasing and refuse separation, are limited and have yet to take root. As a consequence of the adoption of the SDGs and the Paris Agreement, the scope of approaches to establishing SCP patterns has expanded from individual issues to include the entire life cycle and social infrastructure. At the same time, practices have shifted from an efficiency approach that focuses on improvement to a sufficiency approach that aims for social transformation. In this paper, we present four directions for the establishment of the SCP pattern: （1） change and expansion of the target of SCP policy, （2） strengthening the linkage between consumption and production, （3） social system transformation, and （4） bottom-up implementation, and propose 13 opportunities as entry points for SCP policy development. As examples of approaches to consumption derived from these opportunities, value-based circulation, experimental consumption, and provision of environmental information will be introduced.

Policies for sustainable consumption （SC） have been implemented for more than a quarter of a century, but environmental impacts of consumption keep increasing. This paper refers to the existing approach as improvement policy approach, and an alternative approach to be developed in the future as system-transition policy approach, and then explains the outline of each approach and implications for Life-Cycle Assessment （LCA） studies. There are roughly three types of policy instruments for improvement-type SC policy and every of them can be supported by LCA results meaningfully; however, limitations exist. The system transition approach can complement the improvement-type SC policy, as a conceptualized idea of this approach Envisioning-Based Policy Making （EnBPM） is devised, and its outline and advantages are explained. Policy insights obtained are that it is desirable to carry out collaborative work that goes beyond the boundaries of conventional stakeholders, and that the “arena” plays a large role in this regard. From the viewpoint of EnBPM, it is expected that LCA evolves so as to be used for sophisticated screening and formative evaluation.

Sharing economy is framed as an opportunity to utilize idle assets in developed nations where the markets are already saturated with consumer goods. In emerging economies, sharing economy provides an exceptional potential to pursue resource efficiency through making sharing the standard for products which of its ownership is low. This paper reviewed sharing economy case studies that targeted the emerging economies of Asia in order to understand the type of sharing economy businesses that have propensity to succeed and ensure sustainable consumption in the region. In particular, the reviewed case studies focused on car sharing and laundry-related sharing businesses.

The food or food system is a foundation to sustain our life or activities. On the other hand, several impacts for global environmental issues are caused by production, processing, transport, and consumption of food were reported. The education of food systems including impact on global environmental problems and life cycle thinking (LCT) is important for facilitating transition to sustainable food systems including consumption. This article reports issues to introducing LCT-based environmental education to food education at the school, from questionnaire survey. And, it introduces a learning material of LCT, process chain and indirect material consumption of food systems, based on food loss.

To promote sustainable consumption in the society, it is necessary to change the consciousness, behavior, and lifestyles of consumers themselves, who are the actors for consumption. In this paper, the basics about influential factors and models that explain behavior change and the behavior-change measures toward environment-friendly will be summarized and explained. After that, the issues and future prospects of efforts to promote the behavior change of citizens toward sustainable consumption will be described.

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