The effort to address climate change has been inadequate, in spite of decades of work and growing certainty on the science, technology, and policy solutions. A key reason is the lack of understanding of organizations obstructing climate action. This year’s CSSN conference features eleven national studies of climate obstruction across Europe and a study of influence in Brussels, as we launch the first comprehensive volume of climate obstruction in the region. Authors from the book’s chapters will boil down their core findings, revealing actors and the strategies and discourses they use delay and block action in Europe.