Increasing global food insecurity amidst a growing population and diminishing production resources renders the currently dominant linear production model insufficient to combat such challenges. Hence, a circular bioeconomy (CBE) model that ensures more conservative use of resources has become essential. Specifically, a CBE model that focuses on recycling and reusing organic waste is essential to close nutrient loops and establish more resilient rural-urban nexus food systems. However, the CBE status quo in many African food systems is not established. Moreover, scientific evidence on CBE in Africa is almost inexistent, thus limiting policy guidance to achieving circular food systems. Using a sample of about 2,100 farmers and consumers from key food value chains (cassava in Rwanda, coffee in DRC, and bananas in Ethiopia), we explored existing CBE practices; awareness, knowledge, and support for CBE practices; consumers’ opinions on eating foods grown on processed organic waste (CBE fertilizers), and determinants of such opinions. We analysed data in Stata, first descriptively, and then econometrically using the ordered logistic regression, whose proportional odds assumption was violated, thus resorting to the generalized ordered logistic regression. Results show that communities practice aspects of CBE, mainly composting, and are broadly aware, knowledgeable, supportive of CBE practices, and would broadly accept eating foods grown CBE fertilizers. Households with heads that used mobile phones, or whose heads were older, or married, or had a better education and agricultural incomes were more likely to strongly agree that they were knowledgeable and supportive of CBE practices and would eat CBE foods (foods grown on processed organic waste). However, the reverse was true for households that were severely food insecure or lived farther from towns. Rwandan and Ethiopian households compared to DRC were less likely to eat CB foods. Policies to stimulate CBE investments in all three countries were largely absent, and quality scientific evidence to guide their development and implementation is currently insufficient.

No abstract

Transitioning to a circular economy (CE) has been touted as the necessary paradigm shift to counterbalance the ever-increasing socio-economic metabolism in the face of global challenges such as climate change, biodiversity loss, population growth, pollution, and unemployment. Previous research has indicated that the transition to CE requires stakeholder collaboration. Yet, at present, a dearth of literature exists about stakeholder knowledge and perceptions of CE, more so in Africa. This begs the question; how will stakeholders collaborate when their understanding on the subject is dissimilar? To contribute to closing this knowledge gap, this research employs a mixed-methods approach to investigate the knowledge and perception of CE among key stakeholders in selected cities in Uganda. Interview data from 230 respondents selected via a snowballing process in the Ugandan cities of Gulu, Jinja, Masaka, Mbale, Mbarara and the Greater Kampala Metropolitan Area indicate that several stakeholder groups are involved in Uganda's CE space. These include government, businesses, civil society, the public as well as academia, research and think tanks. In terms of CE knowledge, the findings show that respondents were generally knowledgeable about CE. However, much of the knowledge is about the 3Rs (reduce, repair, and recycle) and waste management to the point that many respondents misconstrued recycling to be synonymous with CE. Overall, participant knowledge and perception of CE are determined by the level of education, sector of operation, position at the workplace, how long one has been in the CE space and whether one participated in decision-making. The findings indicate that respondents believe that the government had not done enough in promoting CE concepts and practices including creating avenues for stakeholder collaboration. The findings offer insights for CE proponents on attributes to consider when advocating and communicating about CE. This research could also inform the formulation of policies that stimulate CE development particularly with determining entry points for CE interventions and effective stakeholder engagement.