The Dual Challenge of Net Zero and Circular Materials

To address sustainability goals for climate and the environment, the world seeks to achieve Net Zero (fossil) greenhouse gas emissions by 2050, and a circular economy for plastics and materials. These goals require a transformative redesign of systems and infrastructure for providing energy and chemical products. Currently, more than 80% of energy is derived from fossil fuels without carbon capture and storage, and less than 10% of plastics are recycled. Despite their environmental impacts, an increase in supply of energy and chemical products is needed to enable all global populations to achieve an equitable standard of living. The trilemma of reducing the footprints of energy and chemicals despite increasing demand is one of the grand challenges of our time. Given the extent of resources and investment required, systems analyses complemented with life cycle assessment are critical for optimization and decision making. This seminar will examine the challenges and opportunities in clean energy generation, transport and storage, carbon management, and circularity in delivering societal sustainability goals through 2100.