Complex climate risks that are transboundary and cascading remain a blind spot in climate policy. This report draws on case studies to explore 10 transboundary climate risks of global importance. This report by Adaptation Without Borders rings the alarm bell on transboundary climate risks. It is the first collection of evidence on risks that undermine effective responses to climate change, yet that remain largely unrecognized: a “blind spot” in both climate policies and solutions. It brings together the best available knowledge, drawing on a wealth of case studies.