The carrotmob—often defined as an inverse boycott—is a new, fast-diffusing form of pro-environmental consumption focusing on societal issues. Organized by activists, consumers swarm a predefined store and collectively buy its products. In return, the company engages in pro-environmental actions. This is the first study that empirically analyzes consumer attitudes toward carrotmob and participation intention. The article compares the drivers of carrotmob and anticonsumption (e.g., ecological consumer boycotts). Both forms of consumer activism are triggered by ecological concern. However, carrotmobbing differs because participants do not have to sacrifice their preferred consumption patterns. Study 1 (n = 437) demonstrates that willingness to make sacrifices moderates the impact of ecological concern on attitudes toward the carrotmob. Study 2 (n = 153) establishes external validity by modifying the carrotmob target. As expected, the carrotmob is an alternative consumption option attractive for consumers unwilling to make sacrifices in expressing their environmental concerns.