Determining when, and for whom, positive attitudes toward climate-change actions translate into actual behavior is critically important in promoting pro-environmental behavior. An important way climate change can be tackled is through changes to social policy at the governmental level, which, in turn, depends on individual voting behavior in democratic nations. The present study examined this issue with regard to political party support in New Zealand, and demonstrated—using a large general population sample of voters—that support for climate-change actions predict differential support for center-left and center-right political parties only for people who have children. Parental status moderated the link between support for climate-change actions and voting intentions. Practical and theoretical implications of the findings are discussed.