In the USA, social movements succeeded in stopping 59 proposals to build new conventional (dirty) coal-fired power stations. In the UK, there was an extended campaign to stop the expansion of Heathrow airport, primarily on the grounds of the greenhouse gas emissions from increased flights. Responding to this global epidemic, Climate Action is a campaign manual that draws upon positive case studies of successful grass-roots social movements from the last few decades, and presents a menu of strategies for activists and citizens who want to pressure governments and businesses to create a framework for big and rapid reductions in greenhouse gas emissions.