Addressing climate change is arguably one of the most pressing tasks facing our planet and its inhabitants. In bio and geophysical terms, climate change is defined as changes over time in the averages and variability of surface temperature, precipitation, and wind as well as associated changes in Earth’s atmosphere, oceans and natural water supplies, snow and ice, land surface, ecosystems, and living organisms (Intergovernmental Panel on Climate Change [IPCC], 2007b). What is unique about current global climate change, relative to historical changes, is the causal role of human activity (also called anthropogenic forcing) and the current and projected dramatic changes in climate across the globe. Our primary aim in our report is to engage members of the psychology community (teachers, researchers, practitioners, and students) in the issue of climate change. To this end, this American Psychological Association (APA) task force report describes the contributions of psychological research to an understanding of psychological dimensions of global climate change, provides research recommendations, and proposes policies for APA to assist psychologists’ engagement with this issue.