Walter Stahel is globally recognised as one of the key people who first formulated the concept of a 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.. Amanda Ravenhill is the executive director of the Buckminster Fuller Institute and was the co-founder of Project Drawdown, both focused on solutions that regenerative the earth’s ecosystems and combat climate change. We’ll be asking them about systems change, recent successes and what needs to change.