Emotions shape judgments and decisions, including actions in response to climate change. Despite growing interest in the cognitive, social, and political determinants of climate (in)action, the role of emotions has received limited attention. This review discusses the role of hope in climate action. While many emotional states are oriented to the past or present, hope offers a positive vision of the future. In exploratory analyses of a nationally representative survey of US residents, we identify the most important predictors of hope, climate action, and policy support from a large set of potential variables. We find suggestive evidence that hope, a construct comprised of cognitive, emotional, and contextual factors, is an important motivator of future-oriented action.