The COVID-19 pandemic gives an opportunity to relaunch global economic systems with a better balance between the social and environmental dimensions. There is a need for a scientifically-based step towards a strong Green Deal: a Climate Pact for the EU. Based on a bestselling French book, this English translation provides a summary of the facts on the climate issue, the solutions available and their costs. It outlines the political advantages and challenges current policy, practice and thinking at a time when populist leaders are transforming politics worldwide. This timely book will contribute to a renewed political vision for the EU, the European Economic Area, the UK and Africa.