Credit: World Scientific Climate change is the outstanding survival and ethical issue of our time, and requires urgent action if our descendants are to inherit a livable world. Substantial opportunities exist in the transition to a renewable economy provided through climate action. Reliable, relevant, and accessible information is key. The World Scientific Encyclopedia of Climate Change (the Encyclopedia) responds to the outstanding risk, survival, and ethical issue of our time, requiring action and providing opportunity. This inspiring work can enhance optimism and courage to act urgently and persistently on climate change, with foresight for a livable future. The Encyclopedia is intended to be informative and motivational. Short case studies make up the Encyclopedia. You will see climate change in the ways climate change really exists. Each case study is designed to be easy to read and to communicate with you, regardless of your background with climate change.