This book combines (1) the most extensive treatment of the causes and phenomena of climate change in combination with (2) an extensive treatment of social obstacles and challenges (fossil-fuel funded denialism, media failure,political failure, and moral, religious, and economic challenges), (3) the most extensive treatment of the needed transition from fossil-fuel energy to clean energy, and (4) the most extensive treatment of mobilization. It provides the most complete, most up-to-date treatment of the various kinds of clean energy, and how they could combine to provide 70% clean energy by 2035 and 100% before 2050 (both U.S. and worldwide).