Welcome to Climate Policy Module. In this module you will learn that climate change is a ‘wicked problem’ , it is an issue that presents great scientific and economic complexity, deep uncertainties and profound ethical questions. Efforts to craft a public policy response are being made at multiple levels of governance, cutting across and affecting a wide range of traditional policy fields. How can we solve the ‘greatest market failure that the world has seen’? What are key policy instruments for mitigating climate change? Who are the actors, actor constellations and institutional settings for climate policy at different levels of governance? What is the state and trend of climate policy in world regions with the largest share of global greenhouse gas emissions? This course is designed to encourage you to begin to answer these questions.