Human behavior plays a critical role in causing global climate change as well as in responding to it. In this article, I review important insights on the psychology of climate change. I first discuss factors that affect the likelihood that individuals engage in a wide range of climate actions. Next, I review the processes through which values affect climate actions and reflect on how to motivate climate actions among people who do not strongly care about nature, the environment, and climate change. Then I explain that even people who may be motivated to engage in climate actions may not do so when they face major barriers to act. This implies that to promote wide-scale climate actions, broader system changes are needed. I discuss relevant factors that affect public support for system changes that facilitate and enable climate action. Finally, I summarize key lessons learned and identify important questions for future research.
Keywords: acceptability; climate action; climate change; climate change beliefs; system change; values.