No abstract

This paper reports a synthesis of policy-relevant evidence on household waste prevention, based on a UK portfolio of primary research and a broad international review. Waste prevention was defined as strict avoidance, reduction at source (e.g. home composting) and reuse (for the product's original purpose) - recycling was excluded. A major focus was on consumers. Waste prevention is not one but many behaviours; the review revealed a general hierarchy in their popularity, from donating goods to charity at the top; through small reuse behaviours around the home; to activities involving changes in consumption habits at the bottom; one estimate is that 60% of the public does at least one of these activities, some of the time. Barriers to engaging householders include both modern consumer culture and a genuine confusion that waste prevention is equivalent to recycling. The public can be engaged through local or national campaigns, with a wide range of interventions and communications approaches available. On the products and services side, the primary opportunity within the scope of the review was identified as increasing reuse. The barriers included operational difficulties (funding, capacity, logistics) and consumer attitudes towards second-hand goods. The main opportunities are to ensure more strategic planning for reuse by local authorities and better co-ordination and joint working with the third sector. The review examined the impact or potential of various policy measures designed to influence household behaviour directly or the products and services provided to them. Overall, the international evidence suggests that waste prevention benefits will be derived from a 'package' of measures, including, for example, prevention targets, producer responsibility, householder charging, funding for pilot projects, collaboration between the public, private and third sectors, and public intervention campaigns. UK evidence suggests that the greatest tonnage diversions can be achieved on food waste, home composting and bulky waste. The principal evidence gaps relate to robust and comprehensive quantitative data. Better evidence is needed of what actually works, and what outcomes (weight, carbon and costs) can be expected from different measures. More sensitive and effective monitoring and evaluation is needed to provide the evidence required to develop the necessary basket of future policy measures at local and national level.

This short report presents one strand of the findings from a comprehensive synthesis review of the available evidence on household waste prevention. The aim here is to reflect on evidence regarding the decoupling of economic growth and negative environmental impacts, as well as existing work on modelling and forecasting household waste prevention. Decoupling was found to be a contested term, both conceptually and in terms of practical application, and evidence that it can be achieved was often weak or ambiguous. Modelling, as a tool to explain current waste prevention behaviours, was found to suffer from weaknesses in understanding complex human behaviours and lack of data, and key studies were only able to explain around 30% of observed changes in waste prevention behaviour. Existing models and forecasts of the future growth of waste were therefore found to be largely speculative. These reflections have provided a number of insights for progressing household waste prevention, including the need for a mix of hard (i.e. fiscal, regulatory and service provision) and soft (i.e. behaviour change) measures, though environmental, behavioural, economic and political barriers are also recognized. Among the conclusions is that decoupling as a concept has limited value in terms of developing specific interventions, while recommendations relevant to policy makers and local authorities include the need for further data accumulation and conceptual work to improve modelling and forecasting.

The process of turning a promising chemical compound into a safe and effective drug is both expensive and risky. Effective strategic planning is vital to ensure that investment in staff and equipment is used productively and that an acceptable output of products can be maintained. But methods of planning in common use do not deal satisfactorily with the uncertainties. This paper sets out an analysis of the process and describes the use of a simple model to establish a strategic plan. The model allows the output, resource efficiency and robustness of a plan to be examined. Important conclusions about the relative distribution of resources between different activities are drawn and the effects of possible changes in regulatory requirements are explored.

Waste prevention is a policy priority in many countries. For example, European Union member states are currently required to prepare a national Waste Prevention Programme. This article reports on a major international review of the evidence base for business waste prevention to underpin such policy-making. A strict definition of waste prevention is used, including waste avoidance, waste reduction at source or in process, and product reuse-recycling is outside the scope of this article. The review was organised with two key dimensions. Eight types of policy intervention were identified: standards, labelling, procurement, commitments and voluntary agreements, communication, incentives, waste minimisation clubs and other business support. Six illustrative sectors were selected: construction and demolition, food and drink, hospitality, retail, automotive and office-based services. Four broad approaches to business waste prevention have been distinguished and used as part of the analytical framework, classified into a two by two matrix, using supply-and demand-side drivers as one axis, and incremental versus radical change as the other. A fundamental focus was on attitudes and behaviours. A conceptual framework is presented to navigate the various behavioural influences on businesses, and to discuss those motivations and barriers for which the evidence is relatively robust. The results suggest that the (financial) benefits to business of waste prevention are potentially huge, and that some progress is being made, but measurement is a challenge. A taster of some of the learnings on the effectiveness of the different policy interventions to promote waste prevention is also presented.