The circular economycircular economyA systems solution framework that tackles global challenges like climate change, biodiversity loss, waste, and pollution. It is based on three principles, driven by design: eliminate waste and pollution, circulate products and materials (at their highest value), and regenerate nature. is transformational and a means of addressing climate change. Nature functions in a circular way — and this could and should be emulated in our economic system in order to tackle systemic challenges such as the climate crisis. This COP28 high-level side-event reflected on examples of success and best practice from the research-policy space and the implementation experiences of several countries including Argentina, India, and Peru, as well as the European Commission. The event was organised by PAGE, a UN initiative bringing together five UN agencies (UNEP, ILO, UNDP, UNIDO, and UNITAR) together with UNESCWA, UNECE and UN-OHRLLS. It was moderated by our Climate Lead, Miranda Schnitger.