Park professionals are confronted with complex climate change scenarios that require decisions based on the best available science. Professional staffs often use field-based data to inform management decisions, and social scientists have long gathered this information. For example, the NPS Social Science Branch of the Environmental Quality Division oversees the Visitor Services Project that regularly collects basic information about visitors (e.g., visitation characteristics and history, visitor preferences, visitor demographics, and spending patterns) at many park units. As a result, park professionals have used social science information to contribute to decisions, such as facility and service improvements, site-specific visitor regulations, and information dissemination. In the context of climate change, park professionals may need more specific information about visitors’ knowledge, beliefs, attitudes, motivations, and behavior to inform approaches to visitor management, messaging, education, and outreach. In this article, we outline current and potential social science research contributions to assist park staffs in effective decision making about climate change.