The Introduction establishes the motivation and intent behind the Handbook as being to evolve economic thinking to meet the challenge of climate change as it emerges as the defining topic of our time. It discusses each chapter within, all of which contain ideas to support and accelerate that evolution, and provides an overview of the book’s division into three sections, each covering critical new areas and ideas about economics and climate change. The first section, The Political Economy of Climate Change and Climate Policy, explores the impediments and potentials of climate policy in correcting distributional inequities of climate change via market forces. In the second section, Integrated Assessment Modelling, connections between individual elements of the climate and the economy are analyzed using integrated assessment modelling. Prominent models are improved and expanded upon with the aim of helping researchers and policymakers to better understand climate change and the efficacy of policy addressing it. The final section combines Climate Change and Sustainability. Sustainability is contextualized historically and through previous environmental disasters, while equity is considered through regional developmental and intergenerational approaches. A summary of each individual chapter is included.