Climate change, biodiversity loss, resource depletion, poverty, and inequality are all symptoms of one overarching problem: the way we humans accumulate and use power. If we want to address this problem and reduce the chances of a chaotic collapse of society, we will have to confront our overuse and abuse of power. But first we'll need to define power (both physical and social) and learn how energy flows through ecosystems and human society. Take a tour of these topics with succinct explanations from renowned energy and sustainability expert, Richard Heinberg, and clarifying stories that feature airplane flights, wrecking balls, charismatic leaders, and other seats of power. For more information, please visit our website.