But fresh thinking is allowing us to untangle complex issues and create much better models of potential outcomes of policy decisions, from worldwide to local levels. This approach is Global Systems Science. In this course, you will learn the key features of the Global Systems Science approach, and how it can be applied to the areas of finance, cities, the internet, climate change, and epidemics. A Global Systems Science approach brought together epidemiology, understandings of air transport, and analyses of individual behaviour to throw light on the best course of action. In this course, case studies will help you better understand how local microdynamics interrelate with the global macrodynamics, from the bottom up and top down.