The twenty-first century presents significant environmental challenges that demand innovative energy and material production approaches. A Climate-Smart Circular Bioeconomy (CSB) uses renewable resources to integrate sustainability, economic growth, and rural development using renewable resources. This chapter explores the development of CSB, emphasizing the role of supply chains in converting biomass feedstocks into various products. The analysis highlights the interplay between innovation and product supply chains and the potential of bioeconomy sectors, such as white, blue, green, and brown supply chains. Overcoming anti-science attitudes, including banning biotechnology and climate change denial, will accelerate the development of the CSB. It will benefit from policies including global public investment in research and development, science-based regulations, carbon pricing, and subsidies for introducing new technologies.