Craig Shields, editor of the popular website 2GreenEnergy.com, is the author of three previous books on renewable energy: Renewable Energy - Facts and Fantasies (2010), Is Renewable Really Doable? (2012), and Renewable Energy - Following the Money (2013). Though the books have done well (the first two were #1 best-selling energy books on Amazon), they all share common theme: a set of interviews with subject matter experts, each leaving the reader with essentially the same cautious conclusion: the migration to clean energy, while it is extremely important, faces "tough realities." "Bullish" takes a radically different tack. Most significantly, the book points to a remarkable truth: the battle has been won. The forces of market economics alone are in the process of changing so rapidly that Planet Earth is headed for a clean energy future far faster than anyone could have predicted. Here, Shields presents fourteen reasons why be believes this to be the case.